MSCFModel_W99.h

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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
/****************************************************************************/
// The psycho-physical model of Wiedemann (10-Parameter version from 1999)
// code adapted from https://github.com/glgh/w99-demo
// (MIT License, Copyright (c) 2016 glgh)
/****************************************************************************/
#pragma once
#include <config.h>
 
#include "MSCFModel.h"
#include <microsim/MSLane.h>
#include <microsim/MSVehicle.h>
#include <microsim/MSVehicleType.h>
#include <utils/xml/SUMOXMLDefinitions.h>
 
 
// ===========================================================================
// class definitions
// ===========================================================================
// XXX: which W99 is this? There are several versions... Below it is stated that it is modified it with Krauss vsafe... (Leo)
class MSCFModel_W99 : public MSCFModel {
public:
 
    MSCFModel_W99(const MSVehicleType* vtype);
 
 
    ~MSCFModel_W99();
 
 
 
 
    double followSpeed(const MSVehicle* const veh, double speed, double gap2pred, double predSpeed,
                       double predMaxDecel, const MSVehicle* const pred = 0, const CalcReason usage = CalcReason::CURRENT) const;
 
 
    double stopSpeed(const MSVehicle* const veh, const double speed, double gap, double decel, const CalcReason usage = CalcReason::CURRENT) const;
 
 
    double interactionGap(const MSVehicle* const, double vL) const;
 
    int getModelID() const {
        return SUMO_TAG_CF_W99;
    }
 
 
    MSCFModel* duplicate(const MSVehicleType* vtype) const;
 
 
 
    /*
    enum Status {
        DECEL1,
        DECEL2,
        FOLLOW,
        FREE_FLOW,
    }
 
    private:
    class VehicleVariables : public MSCFModel::VehicleVariables {
    public:
        VehicleVariables() : lastStatus(FREE_FLOW) {}
        Status lastStatus;
    };
    */
 
 
private:
 
    //const double myCC0; // StandStill Distance - (using minGap)
    const double myCC1;   // Spacing Time - s
    const double myCC2;   // Following Variation ("max drift") - m
    const double myCC3;   // Threshold for Entering 'Following' - s
    const double myCC4;   // Negative 'Following' Threshold - m/s
    const double myCC5;   // Positive 'Following' Threshold - m/s
    const double myCC6;   // Speed Dependency of Oscillation - 10^-4 rad/s
    const double myCC7;   // Oscillation Acceleration - m/s^2
    const double myCC8;   // Standstill Acceleration - m/s^2
    const double myCC9;   // Acceleration at 80km/h - m/s^2
 
 
    void computeThresholds(double speed, double predSpeed, double leaderAccel, double rndVal,
                           double& sdxc, double& sdxo, double& sdxv) const;
 
private:
    MSCFModel_W99& operator=(const MSCFModel_W99& s);
};