MSRouteHandler.cpp

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/****************************************************************************/
// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
// Copyright (C) 2001-2024 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
/****************************************************************************/
// Parser and container for routes during their loading
/****************************************************************************/
#include <config.h>
 
#include "MSRouteHandler.h"
#include <microsim/transportables/MSTransportableControl.h>
#include <microsim/transportables/MSPModel.h>
#include <microsim/transportables/MSStageDriving.h>
#include <microsim/transportables/MSStageTranship.h>
#include <microsim/transportables/MSStageTrip.h>
#include <microsim/transportables/MSStageWaiting.h>
#include <microsim/transportables/MSStageWalking.h>
#include <microsim/MSEdge.h>
#include <microsim/MSLane.h>
#include <microsim/MSInsertionControl.h>
#include <microsim/MSStoppingPlace.h>
#include <microsim/MSVehicleControl.h>
#include <microsim/MSEventControl.h>
#include <microsim/Command_RouteReplacement.h>
#include <utils/common/StringTokenizer.h>
#include <utils/common/StringUtils.h>
#include <utils/options/OptionsCont.h>
#include <utils/vehicle/SUMOVehicleParserHelper.h>
 
// ===========================================================================
// static members
// ===========================================================================
SumoRNG MSRouteHandler::myParsingRNG("routehandler");
 
 
// ===========================================================================
// method definitions
// ===========================================================================
MSRouteHandler::MSRouteHandler(const std::string& file, bool addVehiclesDirectly) :
    SUMORouteHandler(file, addVehiclesDirectly ? "" : "routes", true),
    MapMatcher(OptionsCont::getOptions().getBool("mapmatch.junctions"),
               OptionsCont::getOptions().getBool("mapmatch.taz"),
               OptionsCont::getOptions().getFloat("mapmatch.distance"),
               MsgHandler::getErrorInstance()),
    myActiveRouteRepeat(0),
    myActiveRoutePeriod(0),
    myActiveRoutePermanent(false),
    myActiveType(ObjectTypeEnum::UNDEFINED),
    myHaveVia(false),
    myActiveTransportablePlan(nullptr),
    myAddVehiclesDirectly(addVehiclesDirectly),
    myCurrentVTypeDistribution(nullptr),
    myCurrentRouteDistribution(nullptr),
    myAmLoadingState(false),
    myScaleSuffix(OptionsCont::getOptions().getString("scale-suffix")),
    myReplayRerouting(OptionsCont::getOptions().getBool("replay-rerouting")),
    myStartTriggeredInFlow(false) {
    myActiveRoute.reserve(100);
}
 
 
MSRouteHandler::~MSRouteHandler() {}
 
 
void
MSRouteHandler::deleteActivePlanAndVehicleParameter() {
    if (myActiveTransportablePlan != nullptr) {
        for (MSStage* const s : *myActiveTransportablePlan) {
            delete s;
        }
        delete myActiveTransportablePlan;
    }
    delete myVehicleParameter;
    resetActivePlanAndVehicleParameter();
}
 
 
void
MSRouteHandler::resetActivePlanAndVehicleParameter() {
    myVehicleParameter = nullptr;
    myActiveTransportablePlan = nullptr;
    myActiveType = ObjectTypeEnum::UNDEFINED;
}
 
 
void
MSRouteHandler::parseFromViaTo(SumoXMLTag tag, const SUMOSAXAttributes& attrs) {
    const std::string element = toString(tag);
    myActiveRoute.clear();
    bool useTaz = OptionsCont::getOptions().getBool("with-taz");
    if (useTaz && !myVehicleParameter->wasSet(VEHPARS_FROM_TAZ_SET) && !myVehicleParameter->wasSet(VEHPARS_TO_TAZ_SET)) {
        WRITE_WARNINGF(TL("Taz usage was requested but no taz present in % '%'!"), element, myVehicleParameter->id);
        useTaz = false;
    }
    bool ok = true;
    const std::string rid = "for " + element + " '" + myVehicleParameter->id + "'";
    SUMOVehicleClass vClass = SVC_PASSENGER;
    auto& vc = MSNet::getInstance()->getVehicleControl();
    if (!vc.getVTypeDistribution(myVehicleParameter->vtypeid)) {
        MSVehicleType* const type = vc.getVType(myVehicleParameter->vtypeid, &myParsingRNG);
        if (type != nullptr) {
            vClass = type->getParameter().vehicleClass;
        }
    }
    // from-attributes
    if ((useTaz || !attrs.hasAttribute(SUMO_ATTR_FROM)) &&
            (attrs.hasAttribute(SUMO_ATTR_FROM_TAZ) || attrs.hasAttribute(SUMO_ATTR_FROM_JUNCTION))) {
        const bool useJunction = attrs.hasAttribute(SUMO_ATTR_FROM_JUNCTION);
        const std::string tazType = useJunction ? "junction" : "taz";
        const std::string tazID = attrs.get<std::string>(useJunction ? SUMO_ATTR_FROM_JUNCTION : SUMO_ATTR_FROM_TAZ, myVehicleParameter->id.c_str(), ok);
        const MSEdge* fromTaz = MSEdge::dictionary(tazID + "-source");
        if (fromTaz == nullptr) {
            throw ProcessError("Source " + tazType + " '" + tazID + "' not known " + rid + "!"
                               + (useJunction ? JUNCTION_TAZ_MISSING_HELP : ""));
        } else if (fromTaz->getNumSuccessors() == 0 && tag != SUMO_TAG_PERSON) {
            throw ProcessError("Source " + tazType + " '" + tazID + "' has no outgoing edges " + rid + "!");
        } else {
            myActiveRoute.push_back(fromTaz);
        }
    } else if (attrs.hasAttribute(SUMO_ATTR_FROMXY)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_FROMXY, myVehicleParameter->id.c_str(), ok), false, vClass, myActiveRoute, rid, true, ok);
        if (myMapMatchTAZ && ok) {
            myVehicleParameter->fromTaz = myActiveRoute.back()->getID();
            myVehicleParameter->parametersSet |= VEHPARS_FROM_TAZ_SET;
        }
    } else if (attrs.hasAttribute(SUMO_ATTR_FROMLONLAT)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_FROMLONLAT, myVehicleParameter->id.c_str(), ok), true, vClass, myActiveRoute, rid, true, ok);
        if (myMapMatchTAZ && ok) {
            myVehicleParameter->fromTaz = myActiveRoute.back()->getID();
            myVehicleParameter->parametersSet |= VEHPARS_FROM_TAZ_SET;
        }
    } else {
        MSEdge::parseEdgesList(attrs.getOpt<std::string>(SUMO_ATTR_FROM, myVehicleParameter->id.c_str(), ok),
                               myActiveRoute, rid);
    }
    if (!ok) {
        throw ProcessError();
    }
 
    // via-attributes
    if (!attrs.hasAttribute(SUMO_ATTR_VIA) && !attrs.hasAttribute(SUMO_ATTR_ROUTE)) {
        myInsertStopEdgesAt = (int)myActiveRoute.size();
    }
    ConstMSEdgeVector viaEdges;
    if (attrs.hasAttribute(SUMO_ATTR_VIAXY)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_VIAXY, myVehicleParameter->id.c_str(), ok), false, vClass, viaEdges, rid, false, ok);
    } else if (attrs.hasAttribute(SUMO_ATTR_VIALONLAT)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_VIALONLAT, myVehicleParameter->id.c_str(), ok), true, vClass, viaEdges, rid, false, ok);
    } else if (attrs.hasAttribute(SUMO_ATTR_VIAJUNCTIONS)) {
        for (std::string junctionID : attrs.get<std::vector<std::string> >(SUMO_ATTR_VIAJUNCTIONS, myVehicleParameter->id.c_str(), ok)) {
            const MSEdge* viaSink = MSEdge::dictionary(junctionID + "-sink");
            if (viaSink == nullptr) {
                throw ProcessError("Junction-taz '" + junctionID + "' not found." + JUNCTION_TAZ_MISSING_HELP);
            } else {
                viaEdges.push_back(viaSink);
            }
        }
    } else {
        MSEdge::parseEdgesList(attrs.getOpt<std::string>(SUMO_ATTR_VIA, myVehicleParameter->id.c_str(), ok),
                               viaEdges, rid);
    }
    if (!viaEdges.empty()) {
        myHaveVia = true;
    }
    for (const MSEdge* e : viaEdges) {
        myActiveRoute.push_back(e);
        myVehicleParameter->via.push_back(e->getID());
    }
 
    // to-attributes
    if ((useTaz || !attrs.hasAttribute(SUMO_ATTR_TO)) &&
            (attrs.hasAttribute(SUMO_ATTR_TO_TAZ) || attrs.hasAttribute(SUMO_ATTR_TO_JUNCTION))) {
        const bool useJunction = attrs.hasAttribute(SUMO_ATTR_TO_JUNCTION);
        const std::string tazType = useJunction ? "junction" : "taz";
        const std::string tazID = attrs.get<std::string>(useJunction ? SUMO_ATTR_TO_JUNCTION : SUMO_ATTR_TO_TAZ, myVehicleParameter->id.c_str(), ok, true);
        const MSEdge* toTaz = MSEdge::dictionary(tazID + "-sink");
        if (toTaz == nullptr) {
            throw ProcessError("Sink " + tazType + " '" + tazID + "' not known " + rid + "!"
                               + (useJunction ? JUNCTION_TAZ_MISSING_HELP : ""));
        } else if (toTaz->getNumPredecessors() == 0 && tag != SUMO_TAG_PERSON) {
            throw ProcessError("Sink " + tazType + " '" + tazID + "' has no incoming edges " + rid + "!");
        } else {
            myActiveRoute.push_back(toTaz);
        }
    } else if (attrs.hasAttribute(SUMO_ATTR_TOXY)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_TOXY, myVehicleParameter->id.c_str(), ok, true), false, vClass, myActiveRoute, rid, false, ok);
        if (myMapMatchTAZ && ok) {
            myVehicleParameter->toTaz = myActiveRoute.back()->getID();
            myVehicleParameter->parametersSet |= VEHPARS_TO_TAZ_SET;
        }
    } else if (attrs.hasAttribute(SUMO_ATTR_TOLONLAT)) {
        parseGeoEdges(attrs.get<PositionVector>(SUMO_ATTR_TOLONLAT, myVehicleParameter->id.c_str(), ok, true), true, vClass, myActiveRoute, rid, false, ok);
        if (myMapMatchTAZ && ok) {
            myVehicleParameter->toTaz = myActiveRoute.back()->getID();
            myVehicleParameter->parametersSet |= VEHPARS_TO_TAZ_SET;
        }
    } else {
        MSEdge::parseEdgesList(attrs.getOpt<std::string>(SUMO_ATTR_TO, myVehicleParameter->id.c_str(), ok, "", true),
                               myActiveRoute, rid);
    }
    myActiveRouteID = "!" + myVehicleParameter->id;
    if (myVehicleParameter->routeid == "") {
        myVehicleParameter->routeid = myActiveRouteID;
    }
}
 
 
void
MSRouteHandler::myStartElement(int element, const SUMOSAXAttributes& attrs) {
    try {
        if (myActiveTransportablePlan != nullptr && myActiveTransportablePlan->empty() && myVehicleParameter->departProcedure == DepartDefinition::TRIGGERED
                && element != SUMO_TAG_RIDE && element != SUMO_TAG_TRANSPORT && element != SUMO_TAG_PARAM) {
            const std::string mode = myActiveType == ObjectTypeEnum::PERSON ? "ride" : "transport";
            throw ProcessError("Triggered departure for " + myActiveTypeName + " '" + myVehicleParameter->id + "' requires starting with a " + mode + ".");
        }
        if (myVehicleParameter == nullptr) {
            myActiveTypeName = toString((SumoXMLTag)element);
            myHaveVia = false;
        }
        SUMORouteHandler::myStartElement(element, attrs);
        switch (element) {
            case SUMO_TAG_PERSONFLOW:
                addTransportable(attrs, true);
                break;
            case SUMO_TAG_CONTAINERFLOW:
                addTransportable(attrs, false);
                break;
            case SUMO_TAG_FLOW:
                if (myVehicleParameter) {
                    parseFromViaTo((SumoXMLTag)element, attrs);
                }
                break;
            case SUMO_TAG_TRIP:
                parseFromViaTo((SumoXMLTag)element, attrs);
                break;
            default:
                break;
        }
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::openVehicleTypeDistribution(const SUMOSAXAttributes& attrs) {
    bool ok = true;
    myCurrentVTypeDistributionID = attrs.get<std::string>(SUMO_ATTR_ID, nullptr, ok);
    if (ok) {
        myCurrentVTypeDistribution = new RandomDistributor<MSVehicleType*>();
        if (attrs.hasAttribute(SUMO_ATTR_VTYPES)) {
            std::vector<double> probs;
            if (attrs.hasAttribute(SUMO_ATTR_PROBS)) {
                StringTokenizer st(attrs.get<std::string>(SUMO_ATTR_PROBS, myCurrentVTypeDistributionID.c_str(), ok));
                while (st.hasNext()) {
                    probs.push_back(StringUtils::toDoubleSecure(st.next(), 1.0));
                }
            }
            const std::string vTypes = attrs.get<std::string>(SUMO_ATTR_VTYPES, myCurrentVTypeDistributionID.c_str(), ok);
            StringTokenizer st(vTypes);
            int probIndex = 0;
            while (st.hasNext()) {
                const std::string& vtypeID = st.next();
                const RandomDistributor<MSVehicleType*>* const dist = MSNet::getInstance()->getVehicleControl().getVTypeDistribution(vtypeID);
                if (dist != nullptr) {
                    const double distProb = ((int)probs.size() > probIndex ? probs[probIndex] : 1.) / dist->getOverallProb();
                    std::vector<double>::const_iterator probIt = dist->getProbs().begin();
                    for (MSVehicleType* const type : dist->getVals()) {
                        myCurrentVTypeDistribution->add(type, distProb * *probIt);
                        probIt++;
                    }
                } else {
                    MSVehicleType* const type = MSNet::getInstance()->getVehicleControl().getVType(vtypeID, &myParsingRNG);
                    if (type == nullptr) {
                        throw ProcessError("Unknown vtype '" + vtypeID + "' in distribution '" + myCurrentVTypeDistributionID + "'.");
                    }
                    const double prob = ((int)probs.size() > probIndex ? probs[probIndex] : type->getDefaultProbability());
                    myCurrentVTypeDistribution->add(type, prob);
                }
                probIndex++;
            }
            if (probs.size() > 0 && probIndex != (int)probs.size()) {
                WRITE_WARNING("Got " + toString(probs.size()) + " probabilities for " + toString(probIndex) +
                              " types in vTypeDistribution '" + myCurrentVTypeDistributionID + "'");
            }
        }
    }
}
 
 
void
MSRouteHandler::closeVehicleTypeDistribution() {
    if (myCurrentVTypeDistribution != nullptr) {
        if (MSGlobals::gStateLoaded && MSNet::getInstance()->getVehicleControl().hasVTypeDistribution(myCurrentVTypeDistributionID)) {
            delete myCurrentVTypeDistribution;
            return;
        }
        if (myCurrentVTypeDistribution->getOverallProb() == 0) {
            delete myCurrentVTypeDistribution;
            throw ProcessError(TLF("Vehicle type distribution '%' is empty.", myCurrentVTypeDistributionID));
        }
        if (!MSNet::getInstance()->getVehicleControl().addVTypeDistribution(myCurrentVTypeDistributionID, myCurrentVTypeDistribution)) {
            delete myCurrentVTypeDistribution;
            throw ProcessError(TLF("Another vehicle type (or distribution) with the id '%' exists.", myCurrentVTypeDistributionID));
        }
        myCurrentVTypeDistribution = nullptr;
    }
}
 
 
void
MSRouteHandler::openRoute(const SUMOSAXAttributes& attrs) {
    myActiveRoute.clear();
    myInsertStopEdgesAt = -1;
    // check whether the id is really necessary
    std::string rid;
    if (myCurrentRouteDistribution != nullptr) {
        myActiveRouteID = myCurrentRouteDistributionID + "#" + toString(myCurrentRouteDistribution->getProbs().size()); // !!! document this
        rid =  "distribution '" + myCurrentRouteDistributionID + "'";
    } else if (myVehicleParameter != nullptr) {
        // ok, a vehicle is wrapping the route,
        //  we may use this vehicle's id as default
        myActiveRouteID = "!" + myVehicleParameter->id; // !!! document this
        if (attrs.hasAttribute(SUMO_ATTR_ID)) {
            WRITE_WARNINGF(TL("Ids of internal routes are ignored (vehicle '%')."), myVehicleParameter->id);
        }
    } else {
        bool ok = true;
        myActiveRouteID = attrs.get<std::string>(SUMO_ATTR_ID, nullptr, ok, false);
        if (!ok) {
            return;
        }
        rid = "'" + myActiveRouteID + "'";
    }
    if (myVehicleParameter != nullptr) { // have to do this here for nested route distributions
        rid =  "for vehicle '" + myVehicleParameter->id + "'";
    }
    bool ok = true;
    if (attrs.hasAttribute(SUMO_ATTR_EDGES)) {
        MSEdge::parseEdgesList(attrs.get<std::string>(SUMO_ATTR_EDGES, myActiveRouteID.c_str(), ok), myActiveRoute, rid);
    }
    myActiveRouteRefID = attrs.getOpt<std::string>(SUMO_ATTR_REFID, myActiveRouteID.c_str(), ok, "");
    if (myActiveRouteRefID != "" && MSRoute::dictionary(myActiveRouteRefID, &myParsingRNG) == nullptr) {
        throw ProcessError(TLF("Invalid reference to route '%' in route %.", myActiveRouteRefID, rid));
    }
    myActiveRouteProbability = attrs.getOpt<double>(SUMO_ATTR_PROB, myActiveRouteID.c_str(), ok, DEFAULT_VEH_PROB);
    myActiveRouteColor = attrs.hasAttribute(SUMO_ATTR_COLOR) ? new RGBColor(attrs.get<RGBColor>(SUMO_ATTR_COLOR, myActiveRouteID.c_str(), ok)) : nullptr;
    myActiveRouteRepeat = attrs.getOpt<int>(SUMO_ATTR_REPEAT, myActiveRouteID.c_str(), ok, 0);
    myActiveRouteReplacedAtTime = attrs.getOptSUMOTimeReporting(SUMO_ATTR_REPLACED_AT_TIME, myActiveRouteID.c_str(), ok, -1);
    myActiveRouteReplacedIndex = attrs.getOpt<int>(SUMO_ATTR_REPLACED_ON_INDEX, myActiveRouteID.c_str(), ok, 0);
    myActiveRoutePeriod = attrs.getOptSUMOTimeReporting(SUMO_ATTR_CYCLETIME, myActiveRouteID.c_str(), ok,
                          // handle obsolete attribute name
                          attrs.getOptSUMOTimeReporting(SUMO_ATTR_PERIOD, myActiveRouteID.c_str(), ok, 0));
    myActiveRoutePermanent = attrs.getOpt<bool>(SUMO_ATTR_STATE, myActiveRouteID.c_str(), ok, false);
    if (attrs.hasAttribute(SUMO_ATTR_PERIOD)) {
        WRITE_WARNING(TL("Attribute 'period' is deprecated for route. Use 'cycleTime' instead."));
    }
    myCurrentCosts = attrs.getOpt<double>(SUMO_ATTR_COST, myActiveRouteID.c_str(), ok, -1);
    if (ok && myCurrentCosts != -1 && myCurrentCosts < 0) {
        WRITE_WARNING(TLF("Invalid cost for route '%'.", myActiveRouteID));
    }
}
 
 
void
MSRouteHandler::openFlow(const SUMOSAXAttributes& /*attrs*/) {
    // Currently unused
}
 
 
void
MSRouteHandler::openRouteFlow(const SUMOSAXAttributes& /*attrs*/) {
    // Currently unused
}
 
 
void
MSRouteHandler::openTrip(const SUMOSAXAttributes& /*attrs*/) {
    // Currently unsued
}
 
 
void
MSRouteHandler::closeRoute(const bool mayBeDisconnected) {
    std::string type = "vehicle";
    if (mayBeDisconnected) {
        if (myVehicleParameter->repetitionNumber >= 0) {
            type = "flow";
        } else {
            type = "trip";
        }
    }
 
    try {
        const bool mustReroute = myActiveRoute.size() == 0 && myActiveRouteStops.size() != 0;
        if (mustReroute) {
            // implicit route from stops
            for (const SUMOVehicleParameter::Stop& stop : myActiveRouteStops) {
                myActiveRoute.push_back(MSEdge::dictionary(stop.edge));
            }
        }
        if (myActiveRoute.size() == 0) {
            delete myActiveRouteColor;
            myActiveRouteColor = nullptr;
            if (myActiveRouteRefID != "" && myCurrentRouteDistribution != nullptr) {
                ConstMSRoutePtr route = MSRoute::dictionary(myActiveRouteRefID, &myParsingRNG);
                if (route != nullptr) {
                    myCurrentRouteDistribution->add(route, myActiveRouteProbability);
                }
                myActiveRouteID = "";
                myActiveRouteRefID = "";
                return;
            }
            if (myVehicleParameter != nullptr) {
                throw ProcessError("The route for " + type + " '" + myVehicleParameter->id + "' has no edges.");
            } else {
                throw ProcessError(TLF("Route '%' has no edges.", myActiveRouteID));
            }
        }
        if (myActiveRoute.size() == 1 && myActiveRoute.front()->isTazConnector()) {
            throw ProcessError("The routing information for " + type + " '" + myVehicleParameter->id + "' is insufficient.");
        }
        if (myActiveRouteRepeat > 0) {
            // duplicate route
            ConstMSEdgeVector tmpEdges = myActiveRoute;
            auto tmpStops = myActiveRouteStops;
 
            if (MSGlobals::gCheckRoutes) {
                SUMOVehicleClass vClass = SVC_IGNORING;
                std::string errSuffix = ".";
                if (myVehicleParameter != nullptr) {
                    MSVehicleControl& vehControl = MSNet::getInstance()->getVehicleControl();
                    MSVehicleType* vtype = vehControl.getVType(myVehicleParameter->vtypeid, &myParsingRNG);
                    if (vtype != nullptr) {
                        vClass = vtype->getVehicleClass();
                        errSuffix = TLF(" for vehicle '%' with vClass %.", myVehicleParameter->id, getVehicleClassNames(vClass));
                    }
                }
                if (myActiveRoute.size() > 0 && !myActiveRoute.back()->isConnectedTo(*myActiveRoute.front(), vClass)) {
                    if (tmpStops.size() == 0 || tmpStops.back().jump < 0) {
                        throw ProcessError(TLF("Disconnected route '%' when repeating. Last edge '%' is not connected to first edge '%'%",
                                               myActiveRouteID, myActiveRoute.back()->getID(), myActiveRoute.front()->getID(), errSuffix));
                    }
                }
            }
            for (int i = 0; i < myActiveRouteRepeat; i++) {
                myActiveRoute.insert(myActiveRoute.begin(), tmpEdges.begin(), tmpEdges.end());
                for (SUMOVehicleParameter::Stop stop : tmpStops) {
                    if (stop.until > 0) {
                        if (myActiveRoutePeriod <= 0) {
                            const std::string description = myVehicleParameter != nullptr
                                                            ?  "for " + type + " '" + myVehicleParameter->id + "'"
                                                            :  "'" + myActiveRouteID + "'";
                            throw ProcessError(TLF("Cannot repeat stops with 'until' in route % because no cycleTime is defined.", description));
                        }
                        stop.until += myActiveRoutePeriod * (i + 1);
                    }
                    if (stop.arrival > 0) {
                        if (myActiveRoutePeriod <= 0) {
                            const std::string description = myVehicleParameter != nullptr
                                                            ?  "for " + type + " '" + myVehicleParameter->id + "'"
                                                            :  "'" + myActiveRouteID + "'";
                            throw ProcessError(TLF("Cannot repeat stops with 'arrival' in route % because no cycleTime is defined.", description));
                        }
                        stop.arrival += myActiveRoutePeriod * (i + 1);
                    }
                    stop.index = STOP_INDEX_REPEAT;
                    myActiveRouteStops.push_back(stop);
                }
            }
            if (myActiveRouteStops.size() > 0) {
                // never jump on the last stop of a repeating route
                myActiveRouteStops.back().jump = -1;
            }
        }
        MSRoute* const route = new MSRoute(myActiveRouteID, myActiveRoute,
                                           myAmLoadingState ? myActiveRoutePermanent : myVehicleParameter == nullptr,
                                           myActiveRouteColor, myActiveRouteStops,
                                           myActiveRouteReplacedAtTime, myActiveRouteReplacedIndex);
        route->setPeriod(myActiveRoutePeriod);
        route->setCosts(myCurrentCosts);
        route->setReroute(mustReroute);
        myActiveRoute.clear();
        ConstMSRoutePtr constRoute = std::shared_ptr<const MSRoute>(route);
        if (!MSRoute::dictionary(myActiveRouteID, constRoute)) {
            if (!MSGlobals::gStateLoaded) {
                if (myVehicleParameter != nullptr) {
                    if (MSNet::getInstance()->getVehicleControl().getVehicle(myVehicleParameter->id) == nullptr) {
                        throw ProcessError("Another route for " + type + " '" + myVehicleParameter->id + "' exists.");
                    } else {
                        throw ProcessError(TLF("A vehicle with id '%' already exists.", myVehicleParameter->id));
                    }
                } else {
                    throw ProcessError(TLF("Another route (or distribution) with the id '%' exists.", myActiveRouteID));
                }
            }
        } else {
            if (myCurrentRouteDistribution != nullptr) {
                myCurrentRouteDistribution->add(constRoute, myActiveRouteProbability);
            }
        }
        myActiveRouteID = "";
        myActiveRouteColor = nullptr;
        myActiveRouteStops.clear();
        myActiveRouteRepeat = 0;
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::openRouteDistribution(const SUMOSAXAttributes& attrs) {
    // check whether the id is really necessary
    if (myVehicleParameter != nullptr) {
        // ok, a vehicle is wrapping the route,
        //  we may use this vehicle's id as default
        myCurrentRouteDistributionID = "!" + myVehicleParameter->id; // !!! document this
        // we have to record this or we cannot remove the distribution later
        myVehicleParameter->routeid = myCurrentRouteDistributionID;
    } else {
        bool ok = true;
        myCurrentRouteDistributionID = attrs.get<std::string>(SUMO_ATTR_ID, nullptr, ok);
        if (!ok) {
            return;
        }
    }
    myCurrentRouteDistribution = new RandomDistributor<ConstMSRoutePtr>();
    std::vector<double> probs;
    if (attrs.hasAttribute(SUMO_ATTR_PROBS)) {
        bool ok = true;
        StringTokenizer st(attrs.get<std::string>(SUMO_ATTR_PROBS, myCurrentRouteDistributionID.c_str(), ok));
        while (st.hasNext()) {
            probs.push_back(StringUtils::toDoubleSecure(st.next(), 1.0));
        }
    }
    if (attrs.hasAttribute(SUMO_ATTR_ROUTES)) {
        bool ok = true;
        StringTokenizer st(attrs.get<std::string>(SUMO_ATTR_ROUTES, myCurrentRouteDistributionID.c_str(), ok));
        int probIndex = 0;
        while (st.hasNext()) {
            std::string routeID = st.next();
            ConstMSRoutePtr route = MSRoute::dictionary(routeID, &myParsingRNG);
            if (route == nullptr) {
                throw ProcessError("Unknown route '" + routeID + "' in distribution '" + myCurrentRouteDistributionID + "'.");
            }
            const double prob = ((int)probs.size() > probIndex ? probs[probIndex] : 1.0);
            myCurrentRouteDistribution->add(route, prob, false);
            probIndex++;
        }
        if (probs.size() > 0 && probIndex != (int)probs.size()) {
            WRITE_WARNING("Got " + toString(probs.size()) + " probabilities for " + toString(probIndex) +
                          " routes in routeDistribution '" + myCurrentRouteDistributionID + "'");
        }
    }
}
 
 
void
MSRouteHandler::closeRouteDistribution() {
    if (myCurrentRouteDistribution != nullptr) {
        const bool haveSameID = MSRoute::dictionary(myCurrentRouteDistributionID, &myParsingRNG) != nullptr;
        if (MSGlobals::gStateLoaded && haveSameID) {
            delete myCurrentRouteDistribution;
            myCurrentRouteDistribution = nullptr;
            return;
        }
        if (haveSameID) {
            delete myCurrentRouteDistribution;
            throw ProcessError(TLF("Another route (or distribution) with the id '%' exists.", myCurrentRouteDistributionID));
        }
        if (myCurrentRouteDistribution->getOverallProb() == 0) {
            delete myCurrentRouteDistribution;
            throw ProcessError(TLF("Route distribution '%' is empty.", myCurrentRouteDistributionID));
        }
        MSRoute::dictionary(myCurrentRouteDistributionID, myCurrentRouteDistribution, myVehicleParameter == nullptr);
        myCurrentRouteDistribution = nullptr;
    }
}
 
 
void
MSRouteHandler::closeVehicle() {
    // get nested route
    const std::string embeddedRouteID = "!" + myVehicleParameter->id;
    ConstMSRoutePtr route = nullptr;
    if (myReplayRerouting) {
        RandomDistributor<ConstMSRoutePtr>* rDist = MSRoute::distDictionary(embeddedRouteID);
        if (rDist != nullptr && rDist->getVals().size() > 0) {
            route = rDist->getVals().front();
        }
    }
    if (route == nullptr) {
        route = MSRoute::dictionary(embeddedRouteID, &myParsingRNG);
    }
    MSVehicleControl& vehControl = MSNet::getInstance()->getVehicleControl();
    if (myVehicleParameter->departProcedure == DepartDefinition::GIVEN) {
        // let's check whether this vehicle had to depart before the simulation starts
        if (!(myAddVehiclesDirectly || checkLastDepart()) || (myVehicleParameter->depart < string2time(OptionsCont::getOptions().getString("begin")) && !myAmLoadingState)) {
            return;
        }
    }
 
    // get the vehicle's type
    MSVehicleType* vtype = nullptr;
 
    try {
        if (myVehicleParameter->vtypeid != "") {
            vtype = vehControl.getVType(myVehicleParameter->vtypeid, &myParsingRNG);
            if (vtype == nullptr) {
                throw ProcessError("The vehicle type '" + myVehicleParameter->vtypeid + "' for vehicle '" + myVehicleParameter->id + "' is not known.");
            }
            if (vtype->getVehicleClass() == SVC_PEDESTRIAN) {
                WRITE_WARNINGF(TL("Vehicle type '%' with vClass=pedestrian should only be used for persons and not for vehicle '%'."), vtype->getID(), myVehicleParameter->id);
            }
        } else {
            // there should be one (at least the default one)
            vtype = vehControl.getVType(DEFAULT_VTYPE_ID, &myParsingRNG);
        }
        if (myVehicleParameter->wasSet(VEHPARS_ROUTE_SET)) {
            // if the route id was given, prefer that one
            if (route != nullptr && !myAmLoadingState) {
                WRITE_WARNINGF(TL("Ignoring child element 'route' for vehicle '%' because attribute 'route' is set."), myVehicleParameter->id);
            }
            route = MSRoute::dictionary(myVehicleParameter->routeid, &myParsingRNG);
        }
        if (route == nullptr) {
            // nothing found? -> error
            if (myVehicleParameter->routeid != "") {
                throw ProcessError("The route '" + myVehicleParameter->routeid + "' for vehicle '" + myVehicleParameter->id + "' is not known.");
            } else {
                throw ProcessError(TLF("Vehicle '%' has no route.", myVehicleParameter->id));
            }
        }
        myActiveRouteID = "";
 
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
    if (route->mustReroute()) {
        myVehicleParameter->parametersSet |= VEHPARS_FORCE_REROUTE;
        if (myVehicleParameter->stops.size() > 0) {
            route = addVehicleStopsToImplicitRoute(route, false);
        }
    }
    if (myVehicleParameter->departEdgeProcedure != RouteIndexDefinition::DEFAULT) {
        if ((myVehicleParameter->parametersSet & VEHPARS_FORCE_REROUTE) == 0 &&
                myVehicleParameter->departEdgeProcedure == RouteIndexDefinition::GIVEN &&
                myVehicleParameter->departEdge >= (int)route->getEdges().size()) {
            throw ProcessError("Vehicle '" + myVehicleParameter->id + "' has invalid departEdge index "
                               + toString(myVehicleParameter->departEdge) + " for route with " + toString(route->getEdges().size()) + " edges.");
        }
    }
    if (myVehicleParameter->arrivalEdgeProcedure != RouteIndexDefinition::DEFAULT) {
        if ((myVehicleParameter->parametersSet & VEHPARS_FORCE_REROUTE) == 0 &&
                myVehicleParameter->arrivalEdgeProcedure == RouteIndexDefinition::GIVEN &&
                myVehicleParameter->arrivalEdge >= (int)route->getEdges().size()) {
            throw ProcessError("Vehicle '" + myVehicleParameter->id + "' has invalid arrivalEdge index "
                               + toString(myVehicleParameter->arrivalEdge) + " for route with " + toString(route->getEdges().size()) + " edges.");
        }
    }
 
    // try to build the vehicle
    SUMOVehicle* vehicle = nullptr;
    if (vehControl.getVehicle(myVehicleParameter->id) == nullptr) {
        MSVehicleControl::VehicleDefinitionSource source = (myAmLoadingState) ? MSVehicleControl::VehicleDefinitionSource::STATE : MSVehicleControl::VehicleDefinitionSource::ROUTEFILE;
        try {
            vehicle = vehControl.buildVehicle(myVehicleParameter, route, vtype, !MSGlobals::gCheckRoutes, source, !myAmLoadingState);
        } catch (const ProcessError& e) {
            myVehicleParameter = nullptr;
            if (!MSGlobals::gCheckRoutes) {
                WRITE_WARNING(e.what());
                vehControl.fixVehicleCounts();
                return;
            } else {
                throw e;
            }
        }
        const SUMOTime origDepart = myVehicleParameter->depart;
        // maybe we do not want this vehicle to be inserted due to scaling
        int quota = myAmLoadingState ? 1 : vehControl.getQuota(vehControl.getScale() * vtype->getParameter().scale);
        if (quota > 0) {
            registerLastDepart();
            myVehicleParameter->depart += MSNet::getInstance()->getInsertionControl().computeRandomDepartOffset();
            vehControl.addVehicle(myVehicleParameter->id, vehicle);
            if (myReplayRerouting) {
                RandomDistributor<ConstMSRoutePtr>* rDist = MSRoute::distDictionary(embeddedRouteID);
                if (rDist != nullptr) {
                    for (int i = 0; i < (int)rDist->getVals().size() - 1; i++) {
                        SUMOTime replacedAt = rDist->getVals()[i]->getReplacedTime();
                        auto* cmd = new Command_RouteReplacement(vehicle->getID(), rDist->getVals()[i + 1]);
                        if (i == 0 && replacedAt >= 0 && replacedAt == myVehicleParameter->depart) {
                            // routing in the insertion step happens *after* insertion
                            MSNet::getInstance()->getEndOfTimestepEvents()->addEvent(cmd, replacedAt);
                        } else {
                            MSNet::getInstance()->getBeginOfTimestepEvents()->addEvent(cmd, replacedAt);
                        }
                    }
                }
            }
            int offset = 0;
            for (int i = 1; i < quota; i++) {
                if (vehicle->getParameter().departProcedure == DepartDefinition::GIVEN || vehicle->getParameter().departProcedure == DepartDefinition::BEGIN) {
                    MSNet::getInstance()->getInsertionControl().add(vehicle);
                }
                SUMOVehicleParameter* newPars = new SUMOVehicleParameter(*myVehicleParameter);
                newPars->id = myVehicleParameter->id + myScaleSuffix + toString(i + offset);
                while (vehControl.getVehicle(newPars->id) != nullptr) {
                    offset += 1;
                    newPars->id = myVehicleParameter->id + myScaleSuffix + toString(i + offset);
                }
                newPars->depart = origDepart + MSNet::getInstance()->getInsertionControl().computeRandomDepartOffset();
                if (vehControl.hasVTypeDistribution(myVehicleParameter->vtypeid)) {
                    // resample type
                    vtype = vehControl.getVType(myVehicleParameter->vtypeid, &myParsingRNG);
                }
                vehicle = vehControl.buildVehicle(newPars, route, vtype, !MSGlobals::gCheckRoutes, source, !myAmLoadingState);
                vehControl.addVehicle(newPars->id, vehicle);
            }
            myVehicleParameter = nullptr;
        } else {
            vehControl.deleteVehicle(vehicle, true);
            myVehicleParameter = nullptr;
            vehicle = nullptr;
        }
    } else {
        // strange: another vehicle with the same id already exists
        if (!MSGlobals::gStateLoaded) {
            // and was not loaded while loading a simulation state
            // -> error
            std::string veh_id = myVehicleParameter->id;
            deleteActivePlanAndVehicleParameter();
            std::string scaleWarning = "";
            if (vehControl.getScale() * vtype->getParameter().scale > 1 && veh_id.find(myScaleSuffix) != std::string::npos) {
                scaleWarning = "\n   (Possibly duplicate id due to using option --scale. Set option --scale-suffix to prevent this)";
            }
            throw ProcessError("Another vehicle with the id '" + veh_id + "' exists." + scaleWarning);
        } else {
            // ok, it seems to be loaded previously while loading a simulation state
            vehicle = nullptr;
        }
    }
    // check whether the vehicle shall be added directly to the network or
    //  shall stay in the internal buffer
    if (vehicle != nullptr) {
        if (vehicle->getParameter().departProcedure == DepartDefinition::GIVEN || vehicle->getParameter().departProcedure == DepartDefinition::BEGIN) {
            MSNet::getInstance()->getInsertionControl().add(vehicle);
        }
    }
}
 
 
ConstMSRoutePtr
MSRouteHandler::addVehicleStopsToImplicitRoute(ConstMSRoutePtr route, bool isPermanent) {
    // the route was defined without edges and its current edges were
    // derived from route-stops.
    // We may need to add additional edges for the vehicle-stops
    assert(myVehicleParameter->wasSet(VEHPARS_ROUTE_SET));
    assert(route->getStops().size() > 0);
    ConstMSEdgeVector edges = route->getEdges();
    for (SUMOVehicleParameter::Stop stop : myVehicleParameter->stops) {
        MSEdge* stopEdge = MSEdge::dictionary(stop.edge);
        if (stop.index == 0) {
            if (edges.front() != stopEdge ||
                    route->getStops().front().endPos < stop.endPos) {
                edges.insert(edges.begin(), stopEdge);
            }
        } else if (stop.index == STOP_INDEX_END) {
            if (edges.back() != stopEdge ||
                    route->getStops().back().endPos > stop.endPos) {
                edges.push_back(stopEdge);
            }
        } else {
            WRITE_WARNINGF(TL("Could not merge vehicle stops for vehicle '%' into implicitly defined route '%'"), myVehicleParameter->id, route->getID());
        }
    }
    ConstMSRoutePtr newRoute = std::make_shared<MSRoute>("!" + myVehicleParameter->id, edges,
                               isPermanent, new RGBColor(route->getColor()), route->getStops());
    if (!MSRoute::dictionary(newRoute->getID(), newRoute)) {
        throw ProcessError("Could not adapt implicit route for " + std::string(isPermanent ? "flow" : "vehicle") + "  '" + myVehicleParameter->id + "'");
    }
    return newRoute;
}
 
 
void
MSRouteHandler::closeTransportable() {
    try {
        if (myActiveTransportablePlan->size() == 0) {
            std::string error = myActiveTypeName + " '" + myVehicleParameter->id + "' has no plan.";
            error[0] = (char)::toupper((char)error[0]);
            throw ProcessError(error);
        }
        // let's check whether this transportable had to depart before the simulation starts
        if (!(myAddVehiclesDirectly || checkLastDepart())
                || (myVehicleParameter->depart < string2time(OptionsCont::getOptions().getString("begin")) && !myAmLoadingState)) {
            deleteActivePlanAndVehicleParameter();
            return;
        }
        // type existence has been checked on opening
        MSVehicleType* type = MSNet::getInstance()->getVehicleControl().getVType(myVehicleParameter->vtypeid, &myParsingRNG);
        if (myActiveType == ObjectTypeEnum::PERSON
                && type->getVehicleClass() != SVC_PEDESTRIAN
                && !type->getParameter().wasSet(VTYPEPARS_VEHICLECLASS_SET)) {
            WRITE_WARNINGF(TL("Person '%' receives type '%' which implicitly uses unsuitable vClass '%'."), myVehicleParameter->id, type->getID(), toString(type->getVehicleClass()));
        }
        int created = addFlowTransportable(myVehicleParameter->depart, type, myVehicleParameter->id, -1);
        registerLastDepart();
        if (created > 0) {
            resetActivePlanAndVehicleParameter();
        } else {
            deleteActivePlanAndVehicleParameter();
        }
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::closePerson() {
    closeTransportable();
}
 
 
void
MSRouteHandler::closeContainer() {
    closeTransportable();
}
 
 
void
MSRouteHandler::closePersonFlow() {
    closeTransportableFlow();
}
 
 
void
MSRouteHandler::closeContainerFlow() {
    closeTransportableFlow();
}
 
 
void
MSRouteHandler::closeTransportableFlow() {
    try {
        const std::string fid = myVehicleParameter->id;
        if (myActiveTransportablePlan->size() == 0) {
            throw ProcessError(myActiveTypeName + "Flow '" + fid + "' has no plan.");
        }
        // let's check whether this transportable (person/container) had to depart before the simulation starts
        if (!(myAddVehiclesDirectly || checkLastDepart())
                || (myVehicleParameter->depart < string2time(OptionsCont::getOptions().getString("begin")) && !myAmLoadingState)) {
            deleteActivePlanAndVehicleParameter();
            return;
        }
        // instantiate all persons/containers of this flow
        int i = 0;
        registerLastDepart();
        std::string baseID = myVehicleParameter->id;
        if (myVehicleParameter->repetitionProbability > 0) {
            if (myVehicleParameter->repetitionEnd == SUMOTime_MAX) {
                throw ProcessError("probabilistic " + myActiveTypeName + "Flow '" + fid + "' must specify end time");
            } else {
                for (SUMOTime t = myVehicleParameter->depart; t < myVehicleParameter->repetitionEnd; t += TIME2STEPS(1)) {
                    if (RandHelper::rand(&myParsingRNG) < myVehicleParameter->repetitionProbability) {
                        // type existence has been checked on opening
                        MSVehicleType* const type = MSNet::getInstance()->getVehicleControl().getVType(myVehicleParameter->vtypeid, &myParsingRNG);
                        addFlowTransportable(t, type, baseID, i++);
                    }
                }
            }
        } else {
            SUMOTime depart = myVehicleParameter->depart;
            if (myVehicleParameter->repetitionOffset < 0) {
                // poisson: randomize first depart
                myVehicleParameter->incrementFlow(1, &myParsingRNG);
            }
            for (; i < myVehicleParameter->repetitionNumber && (myVehicleParameter->repetitionNumber != std::numeric_limits<int>::max()
                    || depart + myVehicleParameter->repetitionTotalOffset <= myVehicleParameter->repetitionEnd); i++) {
                // type existence has been checked on opening
                MSVehicleType* const type = MSNet::getInstance()->getVehicleControl().getVType(myVehicleParameter->vtypeid, &myParsingRNG);
                addFlowTransportable(depart + myVehicleParameter->repetitionTotalOffset, type, baseID, i);
                myVehicleParameter->incrementFlow(1, &myParsingRNG);
            }
        }
        resetActivePlanAndVehicleParameter();
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
    myStartTriggeredInFlow = false;
}
 
 
int
MSRouteHandler::addFlowTransportable(SUMOTime depart, MSVehicleType* type, const std::string& baseID, int i) {
    try {
        int numCreated = 0;
        MSNet* const net = MSNet::getInstance();
        MSTransportableControl& tc = myActiveType == ObjectTypeEnum::PERSON ? net->getPersonControl() : net->getContainerControl();
        const MSVehicleControl& vc = MSNet::getInstance()->getVehicleControl();
        //MSTransportableControl& pc = net->getPersonControl();
        const int quota = vc.getQuota(vc.getScale() * type->getParameter().scale, tc.getLoadedNumber());
        if (quota == 0) {
            tc.addDiscarded();
        }
        for (int j = 0; j < quota; j++) {
            if (i > 0 || j > 0) {
                // copy parameter and plan because the transportable takes over responsibility
                SUMOVehicleParameter* copyParam = new SUMOVehicleParameter();
                *copyParam = *myVehicleParameter;
                myVehicleParameter = copyParam;
                MSTransportable::MSTransportablePlan* copyPlan = new MSTransportable::MSTransportablePlan();
                MSStage* lastStage = nullptr;
                for (MSStage* const s : *myActiveTransportablePlan) {
                    copyPlan->push_back(s->clone());
                    if (lastStage != nullptr && s->getStageType() == MSStageType::WALKING && lastStage->getDestinationStop() != nullptr) {
                        MSStageMoving* walk = static_cast<MSStageMoving*>(copyPlan->back());
                        walk->setDepartPos(lastStage->getDestinationStop()->getAccessPos(walk->getEdge(), &myParsingRNG));
                    }
                    lastStage = s;
                }
                myActiveTransportablePlan = copyPlan;
                if (myVehicleParameter->departPosProcedure == DepartPosDefinition::RANDOM) {
                    const double initialDepartPos = RandHelper::rand(myActiveTransportablePlan->front()->getDestination()->getLength(), &myParsingRNG);
                    myActiveTransportablePlan->front()->setArrivalPos(initialDepartPos);
                }
            }
            myVehicleParameter->id = (baseID
                                      + (i >= 0 ? "." + toString(i) : "")
                                      + (j > 0 ? "." + toString(j) : ""));
            myVehicleParameter->depart = depart += net->getInsertionControl().computeRandomDepartOffset();
            MSTransportable* transportable = myActiveType == ObjectTypeEnum::PERSON ?
                                             tc.buildPerson(myVehicleParameter, type, myActiveTransportablePlan, &myParsingRNG) :
                                             tc.buildContainer(myVehicleParameter, type, myActiveTransportablePlan);
            numCreated++;
            if (!tc.add(transportable)) {
                std::string error = "Another " + myActiveTypeName + " with the id '" + myVehicleParameter->id + "' exists.";
                delete transportable;
                resetActivePlanAndVehicleParameter();
                if (!MSGlobals::gStateLoaded) {
                    throw ProcessError(error);
                }
            } else if ((net->hasPersons() && net->getPersonControl().get(myVehicleParameter->id) != nullptr)
                       && (net->hasContainers() && net->getContainerControl().get(myVehicleParameter->id) != nullptr)) {
                WRITE_WARNINGF(TL("There exists a person and a container with the same id '%'. Starting with SUMO 1.9.0 this is an error."), myVehicleParameter->id);
            }
        }
        return numCreated;
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::closeVType() {
    MSVehicleType* vehType = MSVehicleType::build(*myCurrentVType);
    vehType->check();
    if (!MSNet::getInstance()->getVehicleControl().addVType(vehType)) {
        const std::string id = vehType->getID();
        delete vehType;
        if (!MSGlobals::gStateLoaded) {
            throw ProcessError(TLF("Another vehicle type (or distribution) with the id '%' exists.", id));
        }
    } else {
        if (myCurrentVTypeDistribution != nullptr) {
            myCurrentVTypeDistribution->add(vehType, vehType->getDefaultProbability());
        }
    }
}
 
 
void
MSRouteHandler::closeFlow() {
    myInsertStopEdgesAt = -1;
    if (myVehicleParameter->repetitionNumber == 0) {
        delete myVehicleParameter;
        myVehicleParameter = nullptr;
        return;
    }
    // let's check whether vehicles had to depart before the simulation starts
    myVehicleParameter->repetitionsDone = 0;
    if (myVehicleParameter->repetitionProbability < 0) {
        const SUMOTime offsetToBegin = string2time(OptionsCont::getOptions().getString("begin")) - myVehicleParameter->depart;
        while (myVehicleParameter->repetitionTotalOffset < offsetToBegin) {
            myVehicleParameter->incrementFlow(1, &myParsingRNG);
            if (myVehicleParameter->repetitionsDone == myVehicleParameter->repetitionNumber) {
                delete myVehicleParameter;
                myVehicleParameter = nullptr;
                return;
            }
        }
    }
    if (MSNet::getInstance()->getVehicleControl().getVType(myVehicleParameter->vtypeid, &myParsingRNG) == nullptr) {
        throw ProcessError("The vehicle type '" + myVehicleParameter->vtypeid + "' for flow '" + myVehicleParameter->id + "' is not known.");
    }
    if (myVehicleParameter->routeid[0] == '!' && MSRoute::dictionary(myVehicleParameter->routeid, &myParsingRNG) == nullptr) {
        myVehicleParameter->parametersSet |= VEHPARS_FORCE_REROUTE;
        closeRoute(true);
    }
    ConstMSRoutePtr route = MSRoute::dictionary(myVehicleParameter->routeid, &myParsingRNG);
    if (route == nullptr) {
        throw ProcessError("The route '" + myVehicleParameter->routeid + "' for flow '" + myVehicleParameter->id + "' is not known.");
    }
    if (route->mustReroute()) {
        myVehicleParameter->parametersSet |= VEHPARS_FORCE_REROUTE;
        if (myVehicleParameter->stops.size() > 0) {
            route = addVehicleStopsToImplicitRoute(route, true);
            myVehicleParameter->routeid = route->getID();
        }
    }
    if (myVehicleParameter->departEdgeProcedure != RouteIndexDefinition::DEFAULT) {
        if ((myVehicleParameter->parametersSet & VEHPARS_FORCE_REROUTE) == 0 &&
                myVehicleParameter->departEdgeProcedure == RouteIndexDefinition::GIVEN &&
                myVehicleParameter->departEdge >= (int)route->getEdges().size()) {
            throw ProcessError("Flow '" + myVehicleParameter->id + "' has invalid departEdge index "
                               + toString(myVehicleParameter->departEdge) + " for route with " + toString(route->getEdges().size()) + " edges.");
        }
    }
    if (myVehicleParameter->arrivalEdgeProcedure != RouteIndexDefinition::DEFAULT) {
        if ((myVehicleParameter->parametersSet & VEHPARS_FORCE_REROUTE) == 0 &&
                myVehicleParameter->arrivalEdgeProcedure == RouteIndexDefinition::GIVEN &&
                myVehicleParameter->arrivalEdge >= (int)route->getEdges().size()) {
            throw ProcessError("Flow '" + myVehicleParameter->id + "' has invalid arrivalEdge index "
                               + toString(myVehicleParameter->arrivalEdge) + " for route with " + toString(route->getEdges().size()) + " edges.");
        }
    }
    myActiveRouteID = "";
 
    // check whether the vehicle shall be added directly to the network or
    //  shall stay in the internal buffer
    if (myAddVehiclesDirectly || checkLastDepart()) {
        if (MSNet::getInstance()->getInsertionControl().addFlow(myVehicleParameter)) {
            registerLastDepart();
        } else {
            if (MSGlobals::gStateLoaded) {
                delete myVehicleParameter;
            } else {
                throw ProcessError(TLF("Another flow with the id '%' exists.", myVehicleParameter->id));
            }
        }
    }
    myVehicleParameter = nullptr;
}
 
 
void
MSRouteHandler::closeTrip() {
    myVehicleParameter->parametersSet |= VEHPARS_FORCE_REROUTE;
    closeRoute(true);
    closeVehicle();
}
 
void
MSRouteHandler::addRide(const SUMOSAXAttributes& attrs) {
    addRideOrTransport(attrs, SUMO_TAG_RIDE);
}
 
void
MSRouteHandler::addTransport(const SUMOSAXAttributes& attrs) {
    addRideOrTransport(attrs, SUMO_TAG_TRANSPORT);
}
 
void
MSRouteHandler::addRideOrTransport(const SUMOSAXAttributes& attrs, const SumoXMLTag modeTag) {
    if (myVehicleParameter == nullptr) {
        throw ProcessError(TLF("Cannot define % stage without %.", toString(modeTag), toString(modeTag)));
    }
    try {
        const std::string mode = modeTag == SUMO_TAG_RIDE ? "ride" : "transport";
        std::string agent = "person";
        std::string stop = "bus stop";
        if (myActiveType == ObjectTypeEnum::CONTAINER) {
            agent = "container";
            stop = "container stop";
        }
 
        if (!((myActiveType == ObjectTypeEnum::PERSON && modeTag == SUMO_TAG_RIDE) ||
                (myActiveType == ObjectTypeEnum::CONTAINER && modeTag == SUMO_TAG_TRANSPORT))) {
            throw ProcessError("Found " + mode + " inside " + agent + " element");
        }
        const std::string aid = myVehicleParameter->id;
        bool ok = true;
        const MSEdge* from = nullptr;
        const std::string desc = attrs.getOpt<std::string>(SUMO_ATTR_LINES, aid.c_str(), ok, "ANY");
        StringTokenizer st(desc);
        MSStoppingPlace* s = retrieveStoppingPlace(attrs, " in " + agent + " '" + aid + "'");
        MSEdge* to = nullptr;
        if (s != nullptr) {
            to = &s->getLane().getEdge();
        }
        double arrivalPos = attrs.getOpt<double>(SUMO_ATTR_ARRIVALPOS, aid.c_str(), ok,
                            s == nullptr ? std::numeric_limits<double>::infinity() : s->getEndLanePosition());
 
        const SUMOVehicleParameter* startVeh = nullptr;
        const MSEdge* startVehFrom = nullptr;
        if (myActiveTransportablePlan->empty() && myVehicleParameter->departProcedure == DepartDefinition::TRIGGERED) {
            if (st.size() != 1) {
                throw ProcessError("Triggered departure for " + agent + " '" + aid + "' requires a unique lines value.");
            }
            // agent starts
            MSVehicleControl& vehControl = MSNet::getInstance()->getVehicleControl();
            const std::string vehID = st.front();
            SUMOVehicle* sVeh = vehControl.getVehicle(vehID);
            if (sVeh == nullptr) {
                if (MSNet::getInstance()->hasFlow(vehID)) {
                    startVeh = MSNet::getInstance()->getInsertionControl().getFlowPars(vehID);
                    if (startVeh != nullptr) {
                        ConstMSRoutePtr const route = MSRoute::dictionary(startVeh->routeid);
                        startVehFrom = route->getEdges().front();
                        // flows are inserted at the end of the time step so we
                        // do delay the pedestrian event by one time step
                        myVehicleParameter->depart = startVeh->depart + DELTA_T;
                        myStartTriggeredInFlow = true;
                    }
                }
            } else {
                startVeh = &sVeh->getParameter();
                startVehFrom = sVeh->getRoute().getEdges().front();
                myVehicleParameter->depart = startVeh->depart;
            }
            if (startVeh == nullptr) {
                throw ProcessError("Unknown vehicle '" + vehID + "' in triggered departure for " + agent + " '" + aid + "'.");
            }
            if (startVeh->departProcedure == DepartDefinition::TRIGGERED) {
                throw ProcessError("Cannot use triggered vehicle '" + vehID + "' in triggered departure for " + agent + " '" + aid + "'.");
            }
        }
 
        if (attrs.hasAttribute(SUMO_ATTR_FROM)) {
            const std::string fromID = attrs.get<std::string>(SUMO_ATTR_FROM, aid.c_str(), ok);
            from = MSEdge::dictionary(fromID);
            if (from == nullptr) {
                throw ProcessError("The from edge '" + fromID + "' within a " + mode + " of " + agent + " '" + aid + "' is not known.");
            }
            if (!myActiveTransportablePlan->empty() && myActiveTransportablePlan->back()->getDestination() != from) {
                const bool stopWithAccess = (myActiveTransportablePlan->back()->getDestinationStop() != nullptr
                                             && &myActiveTransportablePlan->back()->getDestinationStop()->getLane().getEdge() == from);
                const bool transferAtJunction = (from->getFromJunction() == myActiveTransportablePlan->back()->getDestination()->getFromJunction()
                                                 || from->getFromJunction() == myActiveTransportablePlan->back()->getDestination()->getToJunction());
                if (!(stopWithAccess || transferAtJunction)) {
                    throw ProcessError("Disconnected plan for " + agent + " '" + aid +
                                       "' (edge '" + fromID + "' != edge '" + myActiveTransportablePlan->back()->getDestination()->getID() + "').");
                }
            }
            if (startVeh != nullptr && startVehFrom != from) {
                throw ProcessError("Disconnected plan for triggered " + agent + " '" + aid +
                                   "' (edge '" + fromID + "' != edge '" + startVehFrom->getID() + "').");
            }
        } else if (startVeh != nullptr) {
            from = startVehFrom;
        }
        if (myActiveTransportablePlan->empty()) {
            if (from == nullptr) {
                throw ProcessError("The start edge for " + agent + " '" + aid + "' is not known.");
            } else {
                myActiveTransportablePlan->push_back(new MSStageWaiting(
                        from, nullptr, -1, myVehicleParameter->depart, myVehicleParameter->departPos, "start", true));
            }
        }
        // given attribute may override given stopping place due access requirements
        if (to == nullptr || attrs.hasAttribute(SUMO_ATTR_TO)) {
            const std::string toID = attrs.get<std::string>(SUMO_ATTR_TO, aid.c_str(), ok);
            to = MSEdge::dictionary(toID);
            if (to == nullptr) {
                throw ProcessError("The to edge '" + toID + "' within a " + mode + " of " + agent + " '" + aid + "' is not known.");
            }
        }
        const std::string group = attrs.getOpt<std::string>(SUMO_ATTR_GROUP, aid.c_str(), ok, OptionsCont::getOptions().getString("persontrip.default.group"));
        const std::string intendedVeh = attrs.getOpt<std::string>(SUMO_ATTR_INTENDED, nullptr, ok, "");
        const SUMOTime intendedDepart = attrs.getOptSUMOTimeReporting(SUMO_ATTR_DEPART, nullptr, ok, -1);
        arrivalPos = SUMOVehicleParameter::interpretEdgePos(arrivalPos, to->getLength(), SUMO_ATTR_ARRIVALPOS, agent + " '" + aid + "' takes a " + mode + " to edge '" + to->getID() + "'");
        myActiveTransportablePlan->push_back(new MSStageDriving(from, to, s, arrivalPos, 0.0, st.getVector(), group, intendedVeh, intendedDepart));
        myParamStack.push_back(myActiveTransportablePlan->back());
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
MSStoppingPlace*
MSRouteHandler::retrieveStoppingPlace(const SUMOSAXAttributes& attrs, const std::string& errorSuffix, SUMOVehicleParameter::Stop* stopParam) {
    bool ok = true;
    // dummy stop parameter to hold the attributes
    SUMOVehicleParameter::Stop stop;
    if (stopParam != nullptr) {
        stop = *stopParam;
    } else {
        stop.busstop = attrs.getOpt<std::string>(SUMO_ATTR_BUS_STOP, nullptr, ok, "");
        stop.busstop = attrs.getOpt<std::string>(SUMO_ATTR_TRAIN_STOP, nullptr, ok, stop.busstop); // alias
        stop.chargingStation = attrs.getOpt<std::string>(SUMO_ATTR_CHARGING_STATION, nullptr, ok, "");
        stop.overheadWireSegment = attrs.getOpt<std::string>(SUMO_ATTR_OVERHEAD_WIRE_SEGMENT, nullptr, ok, "");
        stop.containerstop = attrs.getOpt<std::string>(SUMO_ATTR_CONTAINER_STOP, nullptr, ok, "");
        stop.parkingarea = attrs.getOpt<std::string>(SUMO_ATTR_PARKING_AREA, nullptr, ok, "");
    }
    MSStoppingPlace* toStop = nullptr;
    if (stop.busstop != "") {
        toStop = MSNet::getInstance()->getStoppingPlace(stop.busstop, SUMO_TAG_BUS_STOP);
        if (toStop == nullptr) {
            ok = false;
            WRITE_ERROR(TLF("The busStop '%' is not known%.", stop.busstop, errorSuffix));
        }
    } else if (stop.containerstop != "") {
        toStop = MSNet::getInstance()->getStoppingPlace(stop.containerstop, SUMO_TAG_CONTAINER_STOP);
        if (toStop == nullptr) {
            ok = false;
            WRITE_ERROR(TLF("The containerStop '%' is not known%.", stop.containerstop, errorSuffix));
        }
    } else if (stop.parkingarea != "") {
        toStop = MSNet::getInstance()->getStoppingPlace(stop.parkingarea, SUMO_TAG_PARKING_AREA);
        if (toStop == nullptr) {
            ok = false;
            WRITE_ERROR(TLF("The parkingArea '%' is not known%.", stop.parkingarea, errorSuffix));
        }
    } else if (stop.chargingStation != "") {
        // ok, we have a charging station
        toStop = MSNet::getInstance()->getStoppingPlace(stop.chargingStation, SUMO_TAG_CHARGING_STATION);
        if (toStop == nullptr) {
            ok = false;
            WRITE_ERROR(TLF("The chargingStation '%' is not known%.", stop.chargingStation, errorSuffix));
        }
    } else if (stop.overheadWireSegment != "") {
        // ok, we have an overhead wire segment
        toStop = MSNet::getInstance()->getStoppingPlace(stop.overheadWireSegment, SUMO_TAG_OVERHEAD_WIRE_SEGMENT);
        if (toStop == nullptr) {
            ok = false;
            WRITE_ERROR(TLF("The overhead wire segment '%' is not known%.", stop.overheadWireSegment, errorSuffix));
        }
    }
    if (!ok && MSGlobals::gCheckRoutes) {
        throw ProcessError(TLF("Invalid stop definition%.", errorSuffix));
    }
    return toStop;
}
 
Parameterised*
MSRouteHandler::addStop(const SUMOSAXAttributes& attrs) {
    Parameterised* result = nullptr;
    try {
        std::string errorSuffix;
        if (myActiveType == ObjectTypeEnum::PERSON) {
            errorSuffix = " in person '" + myVehicleParameter->id + "'";
        } else if (myActiveType == ObjectTypeEnum::CONTAINER) {
            errorSuffix = " in container '" + myVehicleParameter->id + "'";
        } else if (myVehicleParameter != nullptr) {
            errorSuffix = " in vehicle '" + myVehicleParameter->id + "'";
        } else {
            errorSuffix = " in route '" + myActiveRouteID + "'";
        }
        SUMOVehicleParameter::Stop stop;
        bool ok = parseStop(stop, attrs, errorSuffix, MsgHandler::getErrorInstance());
        if (!ok) {
            if (MSGlobals::gCheckRoutes) {
                throw ProcessError();
            }
            return result;
        }
        const MSEdge* edge = nullptr;
        MSStoppingPlace* toStop = retrieveStoppingPlace(attrs, errorSuffix, &stop);
        // if one of the previous stops is defined
        if (toStop != nullptr) {
            const MSLane& l = toStop->getLane();
            stop.lane = l.getID();
            if ((stop.parametersSet & STOP_END_SET) == 0) {
                stop.endPos = toStop->getEndLanePosition();
            } else {
                stop.endPos = attrs.get<double>(SUMO_ATTR_ENDPOS, nullptr, ok);
            }
            stop.startPos = toStop->getBeginLanePosition();
            edge = &l.getEdge();
        } else {
            // no, the lane and the position should be given directly
            // get the lane
            stop.lane = attrs.getOpt<std::string>(SUMO_ATTR_LANE, nullptr, ok, "");
            stop.edge = attrs.getOpt<std::string>(SUMO_ATTR_EDGE, nullptr, ok, "");
            if (ok && stop.edge != "") { // edge is given directly
                edge = MSEdge::dictionary(stop.edge);
                if (edge == nullptr || (edge->isInternal() && !MSGlobals::gUsingInternalLanes)) {
                    throw ProcessError(TLF("The edge '%' for a stop is not known%.", stop.edge, errorSuffix));
                }
            } else if (ok && stop.lane != "") { // lane is given directly
                MSLane* stopLane = MSLane::dictionary(stop.lane);
                if (stopLane == nullptr) {
                    // check for opposite-direction stop
                    stopLane = MSBaseVehicle::interpretOppositeStop(stop);
                    if (stopLane != nullptr) {
                        edge = MSEdge::dictionary(stop.edge);
                    }
                } else {
                    edge = &stopLane->getEdge();
                }
                if (stopLane == nullptr || (stopLane->isInternal() && !MSGlobals::gUsingInternalLanes)) {
                    throw ProcessError(TLF("The lane '%' for a stop is not known%.", stop.lane, errorSuffix));
                }
            } else if (ok && ((attrs.hasAttribute(SUMO_ATTR_X) && attrs.hasAttribute(SUMO_ATTR_Y))
                              || (attrs.hasAttribute(SUMO_ATTR_LON) && attrs.hasAttribute(SUMO_ATTR_LAT)))) {
                Position pos;
                bool geo = false;
                if (attrs.hasAttribute(SUMO_ATTR_X) && attrs.hasAttribute(SUMO_ATTR_Y)) {
                    pos = Position(attrs.get<double>(SUMO_ATTR_X, myVehicleParameter->id.c_str(), ok), attrs.get<double>(SUMO_ATTR_Y, myVehicleParameter->id.c_str(), ok));
                } else {
                    pos = Position(attrs.get<double>(SUMO_ATTR_LON, myVehicleParameter->id.c_str(), ok), attrs.get<double>(SUMO_ATTR_LAT, myVehicleParameter->id.c_str(), ok));
                    geo = true;
                }
                PositionVector positions;
                positions.push_back(pos);
                ConstMSEdgeVector geoEdges;
                SUMOVehicleClass vClass = SVC_PASSENGER;
                auto& vc = MSNet::getInstance()->getVehicleControl();
                if (!vc.getVTypeDistribution(myVehicleParameter->vtypeid)) {
                    MSVehicleType* const type = vc.getVType(myVehicleParameter->vtypeid, &myParsingRNG);
                    if (type != nullptr) {
                        vClass = type->getParameter().vehicleClass;
                    }
                }
                parseGeoEdges(positions, geo, vClass, geoEdges, myVehicleParameter->id, true, ok, true);
                if (ok) {
                    edge = geoEdges.front();
                    if (geo) {
                        GeoConvHelper::getFinal().x2cartesian_const(pos);
                    }
                    stop.parametersSet |= STOP_END_SET;
                    stop.endPos = edge->getLanes()[0]->getShape().nearest_offset_to_point2D(pos, false);
                } else {
                    throw ProcessError(TLF("Could not map stop position '%' to the network%.", pos, errorSuffix));
                }
            } else {
                if (myActiveTransportablePlan && !myActiveTransportablePlan->empty()) { // use end of movement before
                    toStop = myActiveTransportablePlan->back()->getDestinationStop();
                    if (toStop != nullptr) { // use end of movement before definied as a stopping place
                        edge = &toStop->getLane().getEdge();
                        stop.lane = toStop->getLane().getID();
                        stop.endPos = toStop->getEndLanePosition();
                        stop.startPos = toStop->getBeginLanePosition();
                    } else { // use end of movement before definied as lane/edge
                        edge = myActiveTransportablePlan->back()->getDestination();
                        stop.lane = edge->getLanes()[0]->getID();
                        stop.endPos = myActiveTransportablePlan->back()->getArrivalPos();
                        stop.startPos = MAX2(0., stop.endPos - MIN_STOP_LENGTH);
                    }
                } else {
                    const std::string msg = TLF("A stop must be placed on a busStop, a chargingStation, an overheadWireSegment, a containerStop, a parkingArea, an edge or a lane%.", errorSuffix);
                    if (MSGlobals::gCheckRoutes) {
                        throw ProcessError(msg);
                    } else {
                        WRITE_WARNING(msg);
                        return result;
                    }
                }
            }
            stop.endPos = attrs.getOpt<double>(SUMO_ATTR_ENDPOS, nullptr, ok, edge->getLength());
            if (attrs.hasAttribute(SUMO_ATTR_POSITION)) {
                WRITE_WARNINGF(TL("Deprecated attribute 'pos' in description of stop%."), errorSuffix);
                stop.endPos = attrs.getOpt<double>(SUMO_ATTR_POSITION, nullptr, ok, stop.endPos);
            }
            stop.startPos = attrs.getOpt<double>(SUMO_ATTR_STARTPOS, nullptr, ok, MAX2(0., stop.endPos - MIN_STOP_LENGTH));
            if (!myAmLoadingState) {
                const bool friendlyPos = attrs.getOpt<bool>(SUMO_ATTR_FRIENDLY_POS, nullptr, ok, !attrs.hasAttribute(SUMO_ATTR_STARTPOS) && !attrs.hasAttribute(SUMO_ATTR_ENDPOS))
                                         || !MSGlobals::gCheckRoutes;
                if (!ok || (checkStopPos(stop.startPos, stop.endPos, edge->getLength(), 0, friendlyPos) != StopPos::STOPPOS_VALID)) {
                    throw ProcessError(TLF("Invalid start or end position for stop on %'%.",
                                           stop.lane != "" ? ("lane '" + stop.lane) : ("edge '" + stop.edge), errorSuffix));
                }
            }
        }
        stop.edge = edge->getID();
        if (myActiveTransportablePlan) {
            if (myActiveTransportablePlan->empty()) {
                double departPos = toStop == nullptr || myVehicleParameter->wasSet(VEHPARS_DEPARTPOS_SET)
                                   ? myVehicleParameter->departPos
                                   : (toStop->getBeginLanePosition() + toStop->getEndLanePosition()) / 2;
                myActiveTransportablePlan->push_back(new MSStageWaiting(
                        edge, toStop, -1, myVehicleParameter->depart, departPos, "start", true));
            } else if (myActiveTransportablePlan->back()->getDestination() != edge) {
                if (myActiveTransportablePlan->back()->getDestination()->isTazConnector()) {
                    myActiveTransportablePlan->back()->setDestination(edge, toStop);
                } else {
                    throw ProcessError(TLF("Disconnected plan for % '%' (%!=%).", myActiveTypeName, myVehicleParameter->id,
                                edge->getID(), myActiveTransportablePlan->back()->getDestination()->getID()));
                }
            }
            // transporting veh stops somewhere
            else if (myActiveTransportablePlan->back()->getStageType() == MSStageType::WAITING
                     && (attrs.hasAttribute(SUMO_ATTR_ENDPOS) || attrs.hasAttribute(SUMO_ATTR_STARTPOS))) {
                const double start = SUMOVehicleParameter::interpretEdgePos(stop.startPos, edge->getLength(), SUMO_ATTR_STARTPOS, "stopping at " + edge->getID());
                const double end = SUMOVehicleParameter::interpretEdgePos(stop.endPos, edge->getLength(), SUMO_ATTR_ENDPOS, "stopping at " + edge->getID());
                const double prevAr = myActiveTransportablePlan->back()->getArrivalPos();
                if (start > prevAr + NUMERICAL_EPS || end < prevAr - NUMERICAL_EPS) {
                    WRITE_WARNINGF(TL("Disconnected plan for % '%' (stop range %-% does not cover previous arrival position %)."),
                                   myActiveTypeName, myVehicleParameter->id, toString(start), toString(end), toString(prevAr));
                }
            }
            std::string actType = attrs.getOpt<std::string>(SUMO_ATTR_ACTTYPE, nullptr, ok, "");
            double pos = (stop.startPos + stop.endPos) / 2.;
            if (!myActiveTransportablePlan->empty()) {
                pos = myActiveTransportablePlan->back()->getArrivalPos();
            }
            myActiveTransportablePlan->push_back(new MSStageWaiting(edge, toStop, stop.duration, stop.until, pos, actType, false));
            result = myActiveTransportablePlan->back();
 
        } else if (myVehicleParameter != nullptr) {
            myVehicleParameter->stops.push_back(stop);
            result = &myVehicleParameter->stops.back();
        } else {
            myActiveRouteStops.push_back(stop);
            result = &myActiveRouteStops.back();
        }
        if (myInsertStopEdgesAt >= 0) {
            //std::cout << " myInsertStopEdgesAt=" << myInsertStopEdgesAt << " edge=" << edge->getID() << " myRoute=" << toString(myActiveRoute) << "\n";
            if (edge->isInternal()) {
                if (myInsertStopEdgesAt > 0 && *(myActiveRoute.begin() + (myInsertStopEdgesAt - 1)) != edge->getNormalBefore()) {
                    myActiveRoute.insert(myActiveRoute.begin() + myInsertStopEdgesAt, edge->getNormalBefore());
                    myInsertStopEdgesAt++;
                }
                myActiveRoute.insert(myActiveRoute.begin() + myInsertStopEdgesAt, edge->getNormalSuccessor());
                myInsertStopEdgesAt++;
            } else {
                myActiveRoute.insert(myActiveRoute.begin() + myInsertStopEdgesAt, edge);
                myInsertStopEdgesAt++;
            }
        } else if (myHaveVia) {
            // vias were loaded, check for consistency
            if (std::find(myActiveRoute.begin(), myActiveRoute.end(), edge) == myActiveRoute.end()) {
                WRITE_WARNINGF(TL("Stop edge '%' missing in attribute 'via' for % '%'."),
                               edge->getID(), myActiveTypeName, myVehicleParameter->id);
            }
        }
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
    return result;
}
 
 
void
MSRouteHandler::parseWalkPositions(const SUMOSAXAttributes& attrs, const std::string& personID,
                                   const MSEdge* fromEdge, const MSEdge*& toEdge,
                                   double& departPos, double& arrivalPos, MSStoppingPlace*& bs,
                                   const MSStage* const lastStage, bool& ok) {
    try {
        const std::string description = "person '" + personID + "' walking from edge '" + fromEdge->getID() + "'";
 
        if (attrs.hasAttribute(SUMO_ATTR_DEPARTPOS)) {
            WRITE_WARNING(TL("The attribute departPos is no longer supported for walks, please use the person attribute, the arrivalPos of the previous step or explicit stops."));
        }
        departPos = 0.;
        if (lastStage != nullptr) {
            if (lastStage->getDestinationStop() != nullptr) {
                departPos = lastStage->getDestinationStop()->getAccessPos(fromEdge, &myParsingRNG);
            } else if (lastStage->getDestination() == fromEdge) {
                departPos = lastStage->getArrivalPos();
            } else if (lastStage->getDestination()->getToJunction() == fromEdge->getToJunction()) {
                departPos = fromEdge->getLength();
            }
        }
 
        bs = retrieveStoppingPlace(attrs, " " + description);
        if (bs != nullptr) {
            arrivalPos = bs->getAccessPos(toEdge != nullptr ? toEdge : &bs->getLane().getEdge());
            if (arrivalPos < 0) {
                throw ProcessError("Bus stop '" + bs->getID() + "' is not connected to arrival edge '" + toEdge->getID() + "' for " + description + ".");
            }
            if (attrs.hasAttribute(SUMO_ATTR_ARRIVALPOS)) {
                const double length = toEdge != nullptr ? toEdge->getLength() : bs->getLane().getLength();
                const double arrPos = SUMOVehicleParserHelper::parseWalkPos(SUMO_ATTR_ARRIVALPOS, myHardFail, description, length,
                                      attrs.get<std::string>(SUMO_ATTR_ARRIVALPOS, description.c_str(), ok), &myParsingRNG);
                if (arrPos >= bs->getBeginLanePosition() && arrPos < bs->getEndLanePosition()) {
                    arrivalPos = arrPos;
                } else {
                    WRITE_WARNINGF(TL("Ignoring arrivalPos for % because it is outside the given stop '%'."), description, toString(SUMO_ATTR_BUS_STOP));
                    arrivalPos = bs->getAccessPos(&bs->getLane().getEdge());
                }
            }
        } else {
            if (toEdge == nullptr) {
                throw ProcessError(TLF("No destination edge for %.", description));
            }
            if (attrs.hasAttribute(SUMO_ATTR_ARRIVALPOS)) {
                arrivalPos = SUMOVehicleParserHelper::parseWalkPos(SUMO_ATTR_ARRIVALPOS, myHardFail, description, toEdge->getLength(),
                             attrs.get<std::string>(SUMO_ATTR_ARRIVALPOS, description.c_str(), ok), &myParsingRNG);
            } else {
                arrivalPos = toEdge->getLength() / 2.;
            }
        }
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::addPersonTrip(const SUMOSAXAttributes& attrs) {
    if (myVehicleParameter == nullptr) {
        throw ProcessError(TL("Cannot define person stage without person."));
    }
    try {
        myActiveRoute.clear();
        bool ok = true;
        const char* const id = myVehicleParameter->id.c_str();
        const MSEdge* from = nullptr;
        const MSEdge* to = nullptr;
        parseFromViaTo(SUMO_TAG_PERSON, attrs);
        myInsertStopEdgesAt = -1;
        if (attrs.hasAttribute(SUMO_ATTR_FROM) || attrs.hasAttribute(SUMO_ATTR_FROM_JUNCTION) || attrs.hasAttribute(SUMO_ATTR_FROM_TAZ)
                || attrs.hasAttribute(SUMO_ATTR_FROMXY) || attrs.hasAttribute(SUMO_ATTR_FROMLONLAT)) {
            from = myActiveRoute.front();
        } else if (myActiveTransportablePlan->empty()) {
            throw ProcessError(TLF("Start edge not defined for person '%'.", myVehicleParameter->id));
        } else {
            from = myActiveTransportablePlan->back()->getDestination();
        }
        if (attrs.hasAttribute(SUMO_ATTR_TO) || attrs.hasAttribute(SUMO_ATTR_TO_JUNCTION) || attrs.hasAttribute(SUMO_ATTR_TO_TAZ)
            || attrs.hasAttribute(SUMO_ATTR_TOXY) || attrs.hasAttribute(SUMO_ATTR_TOLONLAT)) {
            to = myActiveRoute.back();
        } // else, to may also be derived from stopping place
 
        const SUMOTime duration = attrs.getOptSUMOTimeReporting(SUMO_ATTR_DURATION, id, ok, -1);
        if (attrs.hasAttribute(SUMO_ATTR_DURATION) && duration <= 0) {
            throw ProcessError(TLF("Non-positive walking duration for '%'.", myVehicleParameter->id));
        }
 
        double departPos = 0;
        double arrivalPos = 0;
        MSStoppingPlace* stoppingPlace = nullptr;
        parseWalkPositions(attrs, myVehicleParameter->id, from, to, departPos, arrivalPos, stoppingPlace, nullptr, ok);
 
        SVCPermissions modeSet = 0;
        if (attrs.hasAttribute(SUMO_ATTR_MODES)) {
            const std::string modes = attrs.getOpt<std::string>(SUMO_ATTR_MODES, id, ok, "");
            std::string errorMsg;
            // try to parse person modes
            if (!SUMOVehicleParameter::parsePersonModes(modes, "person", id, modeSet, errorMsg)) {
                throw InvalidArgument(errorMsg);
            }
        } else {
            modeSet = myVehicleParameter->modes;
        }
        const std::string group = attrs.getOpt<std::string>(SUMO_ATTR_GROUP, id, ok, OptionsCont::getOptions().getString("persontrip.default.group"));
        MSVehicleControl& vehControl = MSNet::getInstance()->getVehicleControl();
        const std::string types = attrs.getOpt<std::string>(SUMO_ATTR_VTYPES, id, ok, myVehicleParameter->vTypes);
        for (StringTokenizer st(types); st.hasNext();) {
            const std::string vtypeid = st.next();
            const MSVehicleType* const vType = vehControl.getVType(vtypeid);
            if (vType == nullptr) {
                throw InvalidArgument("The vehicle type '" + vtypeid + "' in a trip for person '" + myVehicleParameter->id + "' is not known.");
            }
            modeSet |= (vType->getVehicleClass() == SVC_BICYCLE) ? SVC_BICYCLE : SVC_PASSENGER;
        }
        const double speed = attrs.getOpt<double>(SUMO_ATTR_SPEED, id, ok, -1.);
        if (attrs.hasAttribute(SUMO_ATTR_SPEED) && speed <= 0) {
            throw ProcessError(TLF("Non-positive walking speed for '%'.", myVehicleParameter->id));
        }
        const double walkFactor = attrs.getOpt<double>(SUMO_ATTR_WALKFACTOR, id, ok, OptionsCont::getOptions().getFloat("persontrip.walkfactor"));
        const double departPosLat = interpretDepartPosLat(attrs.getOpt<std::string>(SUMO_ATTR_DEPARTPOS_LAT, nullptr, ok, ""), -1, "personTrip");
        if (ok) {
            if (myActiveTransportablePlan->empty()) {
                double initialDepartPos = myVehicleParameter->departPos;
                if (myVehicleParameter->departPosProcedure == DepartPosDefinition::RANDOM) {
                    initialDepartPos = RandHelper::rand(from->getLength(), &myParsingRNG);
                }
                myActiveTransportablePlan->push_back(new MSStageWaiting(from, nullptr, -1, myVehicleParameter->depart, initialDepartPos, "start", true));
            }
            myVehicleParameter->parametersSet |= VEHPARS_FORCE_REROUTE;
            MSStoppingPlace* fromStop = myActiveTransportablePlan->empty() ? nullptr : myActiveTransportablePlan->back()->getDestinationStop();
            myActiveTransportablePlan->push_back(new MSStageTrip(from, fromStop, to == nullptr ? &stoppingPlace->getLane().getEdge() : to,
                                                 stoppingPlace, duration, modeSet, types, speed, walkFactor, group,
                                                 departPosLat, attrs.hasAttribute(SUMO_ATTR_ARRIVALPOS), arrivalPos));
            myParamStack.push_back(myActiveTransportablePlan->back());
            if (attrs.hasAttribute(SUMO_ATTR_ARRIVALPOS)) {
                myActiveTransportablePlan->back()->markSet(VEHPARS_ARRIVALPOS_SET);
            }
        }
        myActiveRoute.clear();
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::addWalk(const SUMOSAXAttributes& attrs) {
    if (myVehicleParameter == nullptr) {
        throw ProcessError(TL("Cannot define person stage without person."));
    }
    myActiveRouteID = "";
    if (attrs.hasAttribute(SUMO_ATTR_EDGES) || attrs.hasAttribute(SUMO_ATTR_ROUTE)) {
        try {
            myActiveRoute.clear();
            bool ok = true;
            const SUMOTime duration = attrs.getOptSUMOTimeReporting(SUMO_ATTR_DURATION, nullptr, ok, -1);
            if (attrs.hasAttribute(SUMO_ATTR_DURATION) && duration <= 0) {
                throw ProcessError(TLF("Non-positive walking duration for '%'.", myVehicleParameter->id));
            }
            double speed = -1; // default to vType speed
            if (attrs.hasAttribute(SUMO_ATTR_SPEED)) {
                speed = attrs.get<double>(SUMO_ATTR_SPEED, nullptr, ok);
                if (speed <= 0) {
                    throw ProcessError(TLF("Non-positive walking speed for '%'.", myVehicleParameter->id));
                }
            }
            double departPos = 0;
            double arrivalPos = 0;
            MSStoppingPlace* bs = nullptr;
            if (attrs.hasAttribute(SUMO_ATTR_ROUTE)) {
                myActiveRouteID = attrs.get<std::string>(SUMO_ATTR_ROUTE, myVehicleParameter->id.c_str(), ok);
                ConstMSRoutePtr route = MSRoute::dictionary(myActiveRouteID, &myParsingRNG);
                if (route == nullptr) {
                    throw ProcessError("The route '" + myActiveRouteID + "' for walk of person '" + myVehicleParameter->id + "' is not known.");
                }
                myActiveRoute = route->getEdges();
            } else {
                MSEdge::parseEdgesList(attrs.get<std::string>(SUMO_ATTR_EDGES, myVehicleParameter->id.c_str(), ok), myActiveRoute, myActiveRouteID);
            }
            if (myActiveTransportablePlan->empty()) {
                double initialDepartPos = myVehicleParameter->departPos;
                if (myVehicleParameter->departPosProcedure == DepartPosDefinition::RANDOM) {
                    initialDepartPos = RandHelper::rand(myActiveRoute.front()->getLength(), &myParsingRNG);
                }
                myActiveTransportablePlan->push_back(new MSStageWaiting(myActiveRoute.front(), nullptr, -1, myVehicleParameter->depart, initialDepartPos, "start", true));
            }
            parseWalkPositions(attrs, myVehicleParameter->id, myActiveRoute.front(), myActiveRoute.back(), departPos, arrivalPos, bs, myActiveTransportablePlan->back(), ok);
            if (myActiveRoute.empty()) {
                throw ProcessError(TLF("No edges to walk for person '%'.", myVehicleParameter->id));
            }
            if (myActiveTransportablePlan->back()->getDestination() != myActiveRoute.front() &&
                    myActiveTransportablePlan->back()->getDestination()->getToJunction() != myActiveRoute.front()->getFromJunction() &&
                    myActiveTransportablePlan->back()->getDestination()->getToJunction() != myActiveRoute.front()->getToJunction()) {
                if (myActiveTransportablePlan->back()->getDestinationStop() == nullptr || myActiveTransportablePlan->back()->getDestinationStop()->getAccessPos(myActiveRoute.front()) < 0.) {
                    throw ProcessError("Disconnected plan for person '" + myVehicleParameter->id + "' (" + myActiveRoute.front()->getID() + " not connected to " + myActiveTransportablePlan->back()->getDestination()->getID() + ").");
                }
            }
            const int departLane = attrs.getOpt<int>(SUMO_ATTR_DEPARTLANE, nullptr, ok, -1);
            const double departPosLat = interpretDepartPosLat(attrs.getOpt<std::string>(SUMO_ATTR_DEPARTPOS_LAT, nullptr, ok, ""), departLane, "walk");
            myActiveTransportablePlan->push_back(new MSStageWalking(myVehicleParameter->id, myActiveRoute, bs, duration, speed, departPos, arrivalPos, departPosLat, departLane, myActiveRouteID));
            myParamStack.push_back(myActiveTransportablePlan->back());
            if (attrs.hasAttribute(SUMO_ATTR_ARRIVALPOS)) {
                myActiveTransportablePlan->back()->markSet(VEHPARS_ARRIVALPOS_SET);
            }
            myActiveRoute.clear();
        } catch (ProcessError&) {
            deleteActivePlanAndVehicleParameter();
            throw;
        }
    } else { // parse walks from->to as person trips
        addPersonTrip(attrs);
    }
}
 
double
MSRouteHandler::interpretDepartPosLat(const std::string& value, int departLane, const std::string& element) {
    double pos = MSPModel::UNSPECIFIED_POS_LAT;
    if (value == "") {
        return pos;
    }
    std::string error;
    DepartPosLatDefinition dpd;
    if (SUMOVehicleParameter::parseDepartPosLat(value, element, myVehicleParameter->id, pos, dpd, error)) {
        if (dpd != DepartPosLatDefinition::GIVEN) {
            const MSLane* lane = MSStageMoving::checkDepartLane(myActiveRoute.front(), SVC_IGNORING, departLane, myVehicleParameter->id);
            if (lane == nullptr) {
                throw ProcessError(TLF("Could not find departure lane for walk of person '%' when interpreting departPosLat", myVehicleParameter->id));
            }
            const double usableWidth = lane->getWidth() - 0.5;
            switch (dpd) {
                case DepartPosLatDefinition::RIGHT:
                    pos = -usableWidth / 2;
                    break;
                case DepartPosLatDefinition::LEFT:
                    pos = usableWidth / 2;
                    break;
                case DepartPosLatDefinition::CENTER:
                    pos = 0;
                    break;
                case DepartPosLatDefinition::RANDOM:
                case DepartPosLatDefinition::FREE:
                case DepartPosLatDefinition::RANDOM_FREE:
                    pos = MSPModel::RANDOM_POS_LAT;
                    break;
                default:
                    break;
            }
        }
    } else {
        throw ProcessError(error);
    }
    return pos;
}
 
 
void
MSRouteHandler::addTransportable(const SUMOSAXAttributes& /*attrs*/, const bool isPerson) {
    myActiveType = isPerson ? ObjectTypeEnum::PERSON : ObjectTypeEnum::CONTAINER;
    if (!MSNet::getInstance()->getVehicleControl().hasVType(myVehicleParameter->vtypeid)) {
        const std::string error = TLF("The type '%' for % '%' is not known.", myVehicleParameter->vtypeid, myActiveTypeName, myVehicleParameter->id);
        deleteActivePlanAndVehicleParameter();
        throw ProcessError(error);
    }
    myActiveTransportablePlan = new MSTransportable::MSTransportablePlan();
}
 
 
void
MSRouteHandler::addTranship(const SUMOSAXAttributes& attrs) {
    try {
        myActiveRoute.clear();
        const std::string cid = myVehicleParameter->id;
        bool ok = true;
        const MSEdge* from = nullptr;
        const MSEdge* to = nullptr;
        MSStoppingPlace* cs = nullptr;
 
        double speed;
        const MSVehicleType* vtype = MSNet::getInstance()->getVehicleControl().getVType(myVehicleParameter->vtypeid);
        if (attrs.hasAttribute(SUMO_ATTR_SPEED)) { // speed is explicitly set
            speed = attrs.getOpt<double>(SUMO_ATTR_SPEED, nullptr, ok, -1);
            if (!ok) {
                throw ProcessError(TLF("Could not read tranship speed for container '%'.", cid));
            }
        } else if (vtype != nullptr && vtype->wasSet(VTYPEPARS_MAXSPEED_SET)) { // speed is set by vtype
            speed = vtype->getMaxSpeed();
        } else { // default speed value
            speed = DEFAULT_CONTAINER_TRANSHIP_SPEED;
        }
        if (speed <= 0) {
            throw ProcessError(TLF("Non-positive tranship speed for container '%'.", cid));
        }
        // values from preceding stage:
        const MSEdge* preEdge = nullptr;
        double prePos = 0;
        if (!myActiveTransportablePlan->empty()) {
            preEdge = myActiveTransportablePlan->back()->getDestination();
            prePos = myActiveTransportablePlan->back()->getArrivalPos();
        }
        // set depart position as given attribute value, arrival position of preceding stage or default (=0)
        double departPos = attrs.getOpt<double>(SUMO_ATTR_DEPARTPOS, cid.c_str(), ok, prePos);
 
        if (attrs.hasAttribute(SUMO_ATTR_EDGES)) {
            MSEdge::parseEdgesList(attrs.get<std::string>(SUMO_ATTR_EDGES, cid.c_str(), ok), myActiveRoute, myActiveRouteID);
        } else {
            // set 'from':
            if (attrs.hasAttribute(SUMO_ATTR_FROM)) {
                const std::string fromID = attrs.get<std::string>(SUMO_ATTR_FROM, cid.c_str(), ok);
                from = MSEdge::dictionary(fromID);
                if (from == nullptr) {
                    throw ProcessError("The from edge '" + fromID + "' within a tranship of container '" + cid + "' is not known.");
                }
                if (preEdge != nullptr && preEdge != from) {
                    throw ProcessError("Disconnected plan for container '" + cid + "' (" + from->getID() + "!=" + preEdge->getID() + ").");
                }
            } else if (preEdge == nullptr) {
                throw ProcessError(TLF("The start edge for container '%' is not known.", cid));
            } else {
                from = preEdge;
            }
            // set 'to':
            if (attrs.hasAttribute(SUMO_ATTR_TO)) {
                const std::string toID = attrs.get<std::string>(SUMO_ATTR_TO, cid.c_str(), ok);
                to = MSEdge::dictionary(toID);
                if (to == nullptr) {
                    throw ProcessError("The to edge '" + toID + "' within a tranship of container '" + cid + "' is not known.");
                }
            } else {
                const std::string description = "container '" + cid + "' transhipping from edge '" + from->getID() + "'";
                cs = retrieveStoppingPlace(attrs, " " + description);
                if (cs != nullptr) {
                    to = &cs->getLane().getEdge();
                } else {
                    throw ProcessError(TLF("Inconsistent tranship for container '%', needs either: 'edges', 'to', 'containerStop' (or any other stopping place)", cid));
                }
            }
            myActiveRoute.push_back(from);
            myActiveRoute.push_back(to);
        }
        if (myActiveRoute.empty()) {
            throw ProcessError(TLF("No edges to tranship container '%'.", cid));
        }
        if (preEdge == nullptr) { // additional 'stop' to start the container plan
            myActiveTransportablePlan->push_back(new MSStageWaiting(
                    myActiveRoute.front(), nullptr, -1, myVehicleParameter->depart, departPos, "start", true));
        }
        double arrivalPos = attrs.getOpt<double>(SUMO_ATTR_ARRIVALPOS, cid.c_str(), ok,
                            cs == nullptr ? myActiveRoute.back()->getLength() : cs->getEndLanePosition());
        myActiveTransportablePlan->push_back(new MSStageTranship(myActiveRoute, cs, speed, departPos, arrivalPos));
        myParamStack.push_back(myActiveTransportablePlan->back());
        myActiveRoute.clear();
    } catch (ProcessError&) {
        deleteActivePlanAndVehicleParameter();
        throw;
    }
}
 
 
void
MSRouteHandler::initLaneTree(NamedRTree* tree) {
    for (const auto& edge : MSEdge::getAllEdges()) {
        if (edge->isNormal() || MSGlobals::gUsingInternalLanes) {
            for (MSLane* lane : edge->getLanes()) {
                Boundary b = lane->getShape().getBoxBoundary();
                const float cmin[2] = {(float) b.xmin(), (float) b.ymin()};
                const float cmax[2] = {(float) b.xmax(), (float) b.ymax()};
                tree->Insert(cmin, cmax, lane);
            }
        }
    }
}
 
 
SumoRNG*
MSRouteHandler::getRNG() {
    return &myParsingRNG;
}
 
 
MSEdge*
MSRouteHandler::retrieveEdge(const std::string& id) {
    return MSEdge::dictionary(id);
}
 
 
/****************************************************************************/