Eclipse SUMO - Simulation of Urban MObility
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Data Structures | Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Private Member Functions | Private Attributes
MSCFModel_IDM Class Reference

The Intelligent Driver Model (IDM) car-following model. More...

#include <MSCFModel_IDM.h>

Inheritance diagram for MSCFModel_IDM:
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Collaboration diagram for MSCFModel_IDM:
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Data Structures

class  VehicleVariables
 

Public Types

enum  CalcReason { CURRENT , FUTURE , CURRENT_WAIT , LANE_CHANGE }
 What the return value of stop/follow/free-Speed is used for. More...
 

Public Member Functions

double calculateEmergencyDeceleration (double gap, double egoSpeed, double predSpeed, double predMaxDecel) const
 Returns the minimal deceleration for following the given leader safely.
 
VehicleVariables * createVehicleVariables () const
 Returns model specific values which are stored inside a vehicle and must be used with casting.
 
virtual double distAfterTime (double t, double speed, double accel) const
 calculates the distance traveled after accelerating for time t
 
MSCFModel * duplicate (const MSVehicleType *vtype) const
 Duplicates the car-following model.
 
double estimateSpeedAfterDistance (const double dist, const double v, const double accel) const
 
double getApparentDecel () const
 Get the vehicle type's apparent deceleration [m/s^2] (the one regarded by its followers.
 
double getCollisionMinGapFactor () const
 Get the factor of minGap that must be maintained to avoid a collision event.
 
double getEmergencyDecel () const
 Get the vehicle type's maximal physically possible deceleration [m/s^2].
 
double getMaxAccel () const
 Get the vehicle type's maximum acceleration [m/s^2].
 
double getMaxDecel () const
 Get the vehicle type's maximal comfortable deceleration [m/s^2].
 
double getMinimalArrivalSpeed (double dist, double currentSpeed) const
 Computes the minimal possible arrival speed after covering a given distance.
 
double getMinimalArrivalSpeedEuler (double dist, double currentSpeed) const
 Computes the minimal possible arrival speed after covering a given distance for Euler update.
 
SUMOTime getMinimalArrivalTime (double dist, double currentSpeed, double arrivalSpeed) const
 Computes the minimal time needed to cover a distance given the desired speed at arrival.
 
virtual std::string getParameter (const MSVehicle *veh, const std::string &key) const
 try to get the given parameter for this carFollowingModel
 
SUMOTime getStartupDelay () const
 Get the vehicle type's startupDelay.
 
double maximumSafeFollowSpeed (double gap, double egoSpeed, double predSpeed, double predMaxDecel, bool onInsertion=false) const
 Returns the maximum safe velocity for following the given leader.
 
double maximumSafeStopSpeed (double gap, double decel, double currentSpeed, bool onInsertion=false, double headway=-1, bool relaxEmergency=true) const
 Returns the maximum next velocity for stopping within gap.
 
double maximumSafeStopSpeedBallistic (double gap, double decel, double currentSpeed, bool onInsertion=false, double headway=-1) const
 Returns the maximum next velocity for stopping within gap when using the ballistic positional update.
 
double maximumSafeStopSpeedEuler (double gap, double decel, bool onInsertion, double headway) const
 Returns the maximum next velocity for stopping within gap when using the semi-implicit Euler update.
 
 MSCFModel_IDM (const MSVehicleType *vtype, bool idmm)
 Constructor.
 
 MSCFModel_IDM (const MSVehicleType *vtype, double accel, double decel, double emergencyDecel, double apparentDecel, double headwayTime, double adaptationFactor, double adaptationTime, double internalStepping)
 Constructor.
 
virtual void setParameter (MSVehicle *veh, const std::string &key, const std::string &value) const
 try to set the given parameter for this carFollowingModel
 
 ~MSCFModel_IDM ()
 Destructor.
 
Implementations of the MSCFModel interface
double finalizeSpeed (MSVehicle *const veh, double vPos) const
 Applies interaction with stops and lane changing model influences.
 
virtual double freeSpeed (const MSVehicle *const veh, double speed, double seen, double maxSpeed, const bool onInsertion=false, const CalcReason usage=CalcReason::CURRENT) const
 Computes the vehicle's safe speed without a leader.
 
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
 Computes the vehicle's safe speed (no dawdling)
 
double stopSpeed (const MSVehicle *const veh, const double speed, double gap, double decel, const CalcReason usage=CalcReason::CURRENT) const
 Computes the vehicle's safe speed for approaching a non-moving obstacle (no dawdling)
 
double interactionGap (const MSVehicle *const, double vL) const
 Returns the maximum gap at which an interaction between both vehicles occurs.
 
double insertionFollowSpeed (const MSVehicle *const veh, double speed, double gap2pred, double predSpeed, double predMaxDecel, const MSVehicle *const pred=0) const
 Computes the vehicle's safe speed (no dawdling) This method is used during the insertion stage. Whereas the method followSpeed returns the desired speed which may be lower than the safe speed, this method only considers safety constraints.
 
double insertionStopSpeed (const MSVehicle *const veh, double speed, double gap) const
 Computes the vehicle's safe speed for approaching an obstacle at insertion without constraints due to acceleration capabilities and previous speeds.
 
double getSecureGap (const MSVehicle *const veh, const MSVehicle *const pred, const double speed, const double leaderSpeed, const double leaderMaxDecel) const
 Returns the minimum gap to reserve if the leader is braking at maximum (>=0)
 
int getModelID () const
 Returns the model's name.
 
double minNextSpeed (double speed, const MSVehicle *const veh=0) const
 Returns the minimum speed given the current speed (depends on the numerical update scheme and its step width) Note that it wouldn't have to depend on the numerical update scheme if the semantics would rely on acceleration instead of velocity.
 
Methods to override by model implementation
virtual double patchSpeedBeforeLC (const MSVehicle *veh, double vMin, double vMax) const
 apply custom speed adaptations within the given speed bounds
 
virtual double applyStartupDelay (const MSVehicle *veh, const double vMin, const double vMax, const SUMOTime addTime=0) const
 apply speed adaptation on startup
 
double stopSpeed (const MSVehicle *const veh, const double speed, double gap, const CalcReason usage=CalcReason::CURRENT) const
 Computes the vehicle's safe speed for approaching a non-moving obstacle (no dawdling)
 
virtual double followSpeedTransient (double duration, const MSVehicle *const veh, double speed, double gap2pred, double predSpeed, double predMaxDecel) const
 Computes the vehicle's follow speed that avoids a collision for the given amount of time.
 
virtual double maximumLaneSpeedCF (const MSVehicle *const veh, double maxSpeed, double maxSpeedLane) const
 Returns the maximum velocity the CF-model wants to achieve in the next step.
 
Virtual methods with default implementation
virtual double getImperfection () const
 Get the driver's imperfection.
 
virtual double getHeadwayTime () const
 Get the driver's desired headway [s].
 
virtual bool startupDelayStopped () const
 whether startupDelay should be applied after stopping
 
Setter methods
virtual void setMaxAccel (double accel)
 Sets a new value for maximum acceleration [m/s^2].
 
virtual void setMaxDecel (double decel)
 Sets a new value for maximal comfortable deceleration [m/s^2].
 
virtual void setEmergencyDecel (double decel)
 Sets a new value for maximal physically possible deceleration [m/s^2].
 
virtual void setApparentDecel (double decel)
 Sets a new value for the apparent deceleration [m/s^2].
 
void setCollisionMinGapFactor (const double factor)
 Sets a new value for the factor of minGap that must be maintained to avoid a collision event.
 
virtual void setImperfection (double imperfection)
 Sets a new value for driver imperfection.
 
virtual void setHeadwayTime (double headwayTime)
 Sets a new value for desired headway [s].
 

Static Public Member Functions

static double avoidArrivalAccel (double dist, double time, double speed, double maxDecel)
 Computes the acceleration needed to arrive not before the given time.
 
static double estimateArrivalTime (double dist, double initialSpeed, double arrivalSpeed, double maxSpeed, double accel, double decel)
 Computes the time needed to travel a distance dist given an initial speed, arrival speed, constant acceleration and deceleration. The speed during traveling is assumed not to exceed the max speed.
 
static double estimateArrivalTime (double dist, double speed, double maxSpeed, double accel)
 Computes the time needed to travel a distance dist given an initial speed and constant acceleration. The speed during traveling is assumed not to exceed the max speed.
 
static double gapExtrapolation (const double duration, const double currentGap, double v1, double v2, double a1=0, double a2=0, const double maxV1=std::numeric_limits< double >::max(), const double maxV2=std::numeric_limits< double >::max())
 return the resulting gap if, starting with gap currentGap, two vehicles continue with constant accelerations (velocities bounded by 0 and maxSpeed) for a given timespan of length 'duration'.
 
static double passingTime (const double lastPos, const double passedPos, const double currentPos, const double lastSpeed, const double currentSpeed)
 Calculates the time at which the position passedPosition has been passed In case of a ballistic update, the possibility of a stop within a time step requires more information about the last time-step than in case of the euler update to determine the last position if the currentSpeed is zero.
 
static double speedAfterTime (const double t, const double oldSpeed, const double dist)
 Calculates the speed after a time t \in [0,TS] given the initial speed and the distance traveled in an interval of step length TS.
 

Protected Member Functions

void applyHeadwayAndSpeedDifferencePerceptionErrors (const MSVehicle *const veh, double speed, double &gap, double &predSpeed, double predMaxDecel, const MSVehicle *const pred) const
 Overwrites gap2pred and predSpeed by the perceived values obtained from the vehicle's driver state,.
 
void applyHeadwayPerceptionError (const MSVehicle *const veh, double speed, double &gap) const
 Overwrites gap by the perceived value obtained from the vehicle's driver state.
 
void applyOwnSpeedPerceptionError (const MSVehicle *const veh, double &speed) const
 Overwrites sped by the perceived values obtained from the vehicle's driver state,.
 

Protected Attributes

double myAccel
 The vehicle's maximum acceleration [m/s^2].
 
double myApparentDecel
 The vehicle's deceleration as expected by surrounding traffic [m/s^2].
 
double myCollisionMinGapFactor
 The factor of minGap that must be maintained to avoid a collision event.
 
double myDecel
 The vehicle's maximum deceleration [m/s^2].
 
double myEmergencyDecel
 The vehicle's maximum emergency deceleration [m/s^2].
 
double myHeadwayTime
 The driver's desired time headway (aka reaction time tau) [s].
 
SUMOTime myStartupDelay
 The startup delay after halting [s].
 
const MSVehicleType * myType
 The type to which this model definition belongs to.
 

Private Member Functions

double _v (const MSVehicle *const veh, const double gap2pred, const double mySpeed, const double predSpeed, const double desSpeed, const bool respectMinGap=true) const
 
MSCFModel_IDM & operator= (const MSCFModel_IDM &s)
 Invalidated assignment operator.
 

Private Attributes

const double myAdaptationFactor
 The IDMM adaptation factor beta.
 
const double myAdaptationTime
 The IDMM adaptation time tau.
 
const double myDelta
 The IDM delta exponent.
 
const bool myIDMM
 whether the model is IDMM or IDM
 
const int myIterations
 The number of iterations in speed calculations.
 
const double myTwoSqrtAccelDecel
 A computational shortcut.
 

Currently fixed methods

virtual double maxNextSpeed (double speed, const MSVehicle *const veh) const
 Returns the maximum speed given the current speed.
 
virtual double maxNextSafeMin (double speed, const MSVehicle *const veh=0) const
 Returns the maximum speed given the current speed and regarding driving dynamics.
 
virtual double minNextSpeedEmergency (double speed, const MSVehicle *const veh=0) const
 Returns the minimum speed after emergency braking, given the current speed (depends on the numerical update scheme and its step width) Note that it wouldn't have to depend on the numerical update scheme if the semantics would rely on acceleration instead of velocity.
 
double brakeGap (const double speed) const
 Returns the distance the vehicle needs to halt including driver's reaction time tau (i.e. desired headway), assuming that during the reaction time, the speed remains constant.
 
virtual double brakeGap (const double speed, const double decel, const double headwayTime) const
 
virtual double getSpeedAfterMaxDecel (double v) const
 Returns the velocity after maximum deceleration.
 
static double freeSpeed (const double currentSpeed, const double decel, const double dist, const double maxSpeed, const bool onInsertion, const double actionStepLength)
 
static double brakeGapEuler (const double speed, const double decel, const double headwayTime)
 

Detailed Description

The Intelligent Driver Model (IDM) car-following model.

See also
MSCFModel

Definition at line 39 of file MSCFModel_IDM.h.

Member Enumeration Documentation

◆ CalcReason

enum MSCFModel::CalcReason
inherited

What the return value of stop/follow/free-Speed is used for.

Enumerator
CURRENT 

the return value is used for calculating the next speed

FUTURE 

the return value is used for calculating future speeds

CURRENT_WAIT 

the return value is used for calculating junction stop speeds

LANE_CHANGE 

the return value is used for lane change calculations

Definition at line 77 of file MSCFModel.h.

Constructor & Destructor Documentation

◆ MSCFModel_IDM() [1/2]

MSCFModel_IDM::MSCFModel_IDM ( const MSVehicleType *  vtype,
bool  idmm 
)

Constructor.

Parameters
[in]vtypethe type for which this model is built and also the parameter object to configure this model
[in]idmmWether IDM or IDMM shall be built

Definition at line 37 of file MSCFModel_IDM.cpp.

References SUMOVTypeParameter::getCFParam(), MSVehicleType::getParameter(), MSCFModel::myCollisionMinGapFactor, and SUMO_ATTR_COLLISION_MINGAP_FACTOR.

◆ MSCFModel_IDM() [2/2]

MSCFModel_IDM::MSCFModel_IDM ( const MSVehicleType *  vtype,
double  accel,
double  decel,
double  emergencyDecel,
double  apparentDecel,
double  headwayTime,
double  adaptationFactor,
double  adaptationTime,
double  internalStepping 
)

Constructor.

Parameters
[in]accelThe maximum acceleration
[in]decelThe maximum deceleration
[in]emergencyDecelThe maximum emergency deceleration
[in]apparentDecelThe deceleration as expected by others
[in]headwayTimethe headway gap
[in]adaptationFactora model constant
[in]adaptationTimea model constant
[in]internalSteppinginternal time step size

◆ ~MSCFModel_IDM()

MSCFModel_IDM::~MSCFModel_IDM ( )

Destructor.

Definition at line 49 of file MSCFModel_IDM.cpp.

Member Function Documentation

◆ _v()

double MSCFModel_IDM::_v ( const MSVehicle *const  veh,
const double  gap2pred,
const double  mySpeed,
const double  predSpeed,
const double  desSpeed,
const bool  respectMinGap = true 
) const
private

Definition at line 198 of file MSCFModel_IDM.cpp.

References ACCEL2SPEED, DEBUG_COND, MSGlobals::gComputeLC, MSVehicle::getCarFollowVariables(), Named::getID(), MSVehicleType::getMinGap(), MSCFModel_IDM::VehicleVariables::levelOfService, MAX2(), MSCFModel::myAccel, myAdaptationFactor, myDelta, MSCFModel::myHeadwayTime, myIterations, myTwoSqrtAccelDecel, MSCFModel::myType, SIMTIME, and SPEED2DIST.

Referenced by followSpeed(), freeSpeed(), and stopSpeed().

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◆ applyHeadwayAndSpeedDifferencePerceptionErrors()

void MSCFModel::applyHeadwayAndSpeedDifferencePerceptionErrors ( const MSVehicle *const  veh,
double  speed,
double &  gap,
double &  predSpeed,
double  predMaxDecel,
const MSVehicle *const  pred 
) const
protectedinherited

Overwrites gap2pred and predSpeed by the perceived values obtained from the vehicle's driver state,.

See also
MSCFModel_Krauss::stopSpeed() and MSCFModel_Krauss::followSpeed() for integration into a CF model
Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in,out]gap2predThe (net) distance to the LEADER
[in,out]predSpeedThe speed of LEADER
[in]predThe leading vehicle (LEADER)

Definition at line 1063 of file MSCFModel.cpp.

References DEBUG_COND, MSCFModel::followSpeed(), MSCFModel::FUTURE, MSVehicle::getDriverState(), Named::getID(), MSVehicle::hasDriverState(), SIMTIME, SPEED2ACCEL, and UNUSED_PARAMETER.

Referenced by MSCFModel_CACC::followSpeed(), followSpeed(), and MSCFModel_Krauss::followSpeed().

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◆ applyHeadwayPerceptionError()

void MSCFModel::applyHeadwayPerceptionError ( const MSVehicle *const  veh,
double  speed,
double &  gap 
) const
protectedinherited

Overwrites gap by the perceived value obtained from the vehicle's driver state.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in,out]gapThe (net) distance to the obstacle

Definition at line 1099 of file MSCFModel.cpp.

References DEBUG_COND, MSCFModel::FUTURE, MSVehicle::getDriverState(), Named::getID(), MSVehicle::hasDriverState(), SIMTIME, SPEED2ACCEL, MSCFModel::stopSpeed(), and UNUSED_PARAMETER.

Referenced by stopSpeed(), MSCFModel_CACC::stopSpeed(), and MSCFModel_Krauss::stopSpeed().

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◆ applyOwnSpeedPerceptionError()

void MSCFModel::applyOwnSpeedPerceptionError ( const MSVehicle *const  veh,
double &  speed 
) const
protectedinherited

Overwrites sped by the perceived values obtained from the vehicle's driver state,.

See also
MSCFModel_Krauss::freeSpeed()
Parameters
[in]vehThe vehicle (EGO)
[in,out]speedThe vehicle's speed

Definition at line 1054 of file MSCFModel.cpp.

References MSVehicle::getDriverState(), and MSVehicle::hasDriverState().

Referenced by MSCFModel::maximumLaneSpeedCF(), and MSCFModel_CACC::maximumLaneSpeedCF().

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◆ applyStartupDelay()

double MSCFModel::applyStartupDelay ( const MSVehicle *  veh,
const double  vMin,
const double  vMax,
const SUMOTime  addTime = 0 
) const
virtualinherited

apply speed adaptation on startup

Definition at line 257 of file MSCFModel.cpp.

References DELTA_T, MSVehicle::getSpeed(), MSVehicle::getTimeSinceStartup(), MSCFModel::myStartupDelay, SUMO_const_haltingSpeed, and UNUSED_PARAMETER.

Referenced by MSCFModel::finalizeSpeed(), and MSCFModel_EIDM::finalizeSpeed().

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◆ avoidArrivalAccel()

double MSCFModel::avoidArrivalAccel ( double  dist,
double  time,
double  speed,
double  maxDecel 
)
staticinherited

Computes the acceleration needed to arrive not before the given time.

Parameters
[in]dist- the distance of the critical point
[in]time- the time after which an arrival at dist is allowed
[in]speed- the current speed
Returns
Returns the acceleration which would ensure an arrival at distance dist earliest for the given time

Definition at line 521 of file MSCFModel.cpp.

Referenced by MSLCM_SL2015::commitManoeuvre().

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◆ brakeGap() [1/2]

double MSCFModel::brakeGap ( const double  speed) const
inlineinherited

Returns the distance the vehicle needs to halt including driver's reaction time tau (i.e. desired headway), assuming that during the reaction time, the speed remains constant.

Parameters
[in]speedThe vehicle's current speed
Returns
The distance needed to halt

Definition at line 380 of file MSCFModel.h.

References MSCFModel::brakeGap(), MSCFModel::myDecel, and MSCFModel::myHeadwayTime.

Referenced by MSCFModel_Wiedemann::_v(), MSLCM_LC2013::_wantsChange(), MSLCM_SL2015::_wantsChangeSublane(), MSVehicle::adaptToOncomingLeader(), MSPModel_Striping::addCrossingVehs(), MSLane::addLeaders(), MSCFModel::brakeGap(), MSCFModel_EIDM::brakeGap(), MSLCHelper::canSaveBlockerLength(), MSLaneChanger::checkChange(), MSLane::checkFailure(), MSVehicle::checkReversal(), MSVehicle::checkRewindLinkLanes(), MSLaneChanger::computeSafeOppositeLength(), MSCFModel::distAfterTime(), MSCFModel::followSpeedTransient(), MSVehicle::getBrakeGap(), MSLaneChanger::getColumnleader(), MSLane::getCriticalLeader(), MSVehicle::getFollower(), LIBSUMO_NAMESPACE::Vehicle::getJunctionFoes(), MSLane::getLeader(), MSVehicle::getLeader(), MSLink::getLeaderInfo(), MSLane::getLeaderOnConsecutive(), MSLane::getLeadersOnConsecutive(), MSLaneChanger::getRealLeader(), MSCFModel::getSecureGap(), MSLink::getZipperSpeed(), MSLane::handleCollisionBetween(), MSLane::handleIntermodalCollisionBetween(), MSIdling_Stop::idle(), MSLCM_SL2015::informLeader(), MSLCM_LC2013::informLeader(), MSLane::isInsertionSuccess(), MSVehicle::isLeader(), MSLane::lastInsertion(), MSCFModel::maximumSafeFollowSpeed(), MSDevice_StationFinder::notifyMove(), GUIBaseVehicle::GUIBaseVehiclePopupMenu::onCmdToggleStop(), MSVehicle::planMoveInternal(), MSLCM_SL2015::preventSliding(), MSVehicle::processLinkApproaches(), MSVehicle::unsafeLinkAhead(), MSVehicle::updateBestLanes(), and MSLCHelper::updateBlockerLength().

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◆ brakeGap() [2/2]

double MSCFModel::brakeGap ( const double  speed,
const double  decel,
const double  headwayTime 
) const
virtualinherited

Reimplemented in MSCFModel_EIDM.

Definition at line 75 of file MSCFModel.cpp.

References MSCFModel::brakeGapEuler(), and MSGlobals::gSemiImplicitEulerUpdate.

◆ brakeGapEuler()

double MSCFModel::brakeGapEuler ( const double  speed,
const double  decel,
const double  headwayTime 
)
staticinherited

Definition at line 90 of file MSCFModel.cpp.

References ACCEL2SPEED, and SPEED2DIST.

Referenced by MSCFModel::brakeGap(), and MSLCM_SL2015::computeSpeedLat().

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◆ calculateEmergencyDeceleration()

double MSCFModel::calculateEmergencyDeceleration ( double  gap,
double  egoSpeed,
double  predSpeed,
double  predMaxDecel 
) const
inherited

Returns the minimal deceleration for following the given leader safely.

Parameters
[in]gapThe (net) distance to the LEADER
[in]egoSpeedThe FOLLOWERS's speed
[in]predSpeedThe LEADER's speed
[in]predMaxDecelThe LEADER's maximum deceleration
Returns
The minimal deceleration b>0 that, if applied constantly until a full stop, asserts that the vehicle does not crash into the leader.
Note
If b > predMaxDecel, this function actually does not calculate the tangency for the trajectories, i.e. a double root for the gap, but applies a simpler approach following the spirit of maximumSafeFollowSpeed, where the leader's decel is assumed as maximum of its actual value and the followers decel.

Definition at line 1002 of file MSCFModel.cpp.

References DEBUG_COND2, MSCFModel::myEmergencyDecel, and SIMTIME.

Referenced by MSCFModel::maximumSafeFollowSpeed(), MSCFModel_EIDM::maximumSafeFollowSpeed(), and MSCFModel::maximumSafeStopSpeed().

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◆ createVehicleVariables()

VehicleVariables * MSCFModel_IDM::createVehicleVariables ( ) const
inlinevirtual

Returns model specific values which are stored inside a vehicle and must be used with casting.

Reimplemented from MSCFModel.

Definition at line 180 of file MSCFModel_IDM.h.

References myAdaptationFactor.

◆ distAfterTime()

double MSCFModel::distAfterTime ( double  t,
double  speed,
double  accel 
) const
virtualinherited

calculates the distance traveled after accelerating for time t

Definition at line 403 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::brakeGap(), MSGlobals::gSemiImplicitEulerUpdate, MAX2(), SPEED2DIST, and TS.

Referenced by MSCFModel::followSpeedTransient().

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◆ duplicate()

MSCFModel * MSCFModel_IDM::duplicate ( const MSVehicleType *  vtype) const
virtual

Duplicates the car-following model.

Parameters
[in]vtypeThe vehicle type this model belongs to (1:1)
Returns
A duplicate of this car-following model

Implements MSCFModel.

Definition at line 246 of file MSCFModel_IDM.cpp.

References myIDMM.

◆ estimateArrivalTime() [1/2]

double MSCFModel::estimateArrivalTime ( double  dist,
double  initialSpeed,
double  arrivalSpeed,
double  maxSpeed,
double  accel,
double  decel 
)
staticinherited

Computes the time needed to travel a distance dist given an initial speed, arrival speed, constant acceleration and deceleration. The speed during traveling is assumed not to exceed the max speed.

Parameters
[in]distDistance to be covered (assumed >= 0.)
[in]initialSpeedInitial speed of vehicle
[in]arrivalSpeeddesired arrival speed of vehicle
[in]accelAssumed acceleration until reaching maxspeed.
[in]accelAssumed deceleration until reaching targetspeed.
Returns
Returns the estimated time needed to cover the given distance If distance will never be covered with the given parameters INVALID_DOUBLE (from MSLink.h) is returned.
Note
Currently, this is still a stub for actually very special situations in LC context: It is assumed that 0==initialSpeed==arrivalSpeed<=maxspeed, accel==decel>0 (because currently this is only used for lane change purposes, where lateral accel == lateral decel)

Definition at line 489 of file MSCFModel.cpp.

References UNUSED_PARAMETER.

◆ estimateArrivalTime() [2/2]

double MSCFModel::estimateArrivalTime ( double  dist,
double  speed,
double  maxSpeed,
double  accel 
)
staticinherited

Computes the time needed to travel a distance dist given an initial speed and constant acceleration. The speed during traveling is assumed not to exceed the max speed.

Parameters
[in]distDistance to be covered (assumed >= 0.)
[in]speedInitial speed of vehicle
[in]accelAssumed acceleration until reaching maxspeed or speed=0.
Returns
Returns the estimated time needed to cover the given distance If distance will never be covered with the given parameters INVALID_DOUBLE (from MSLink.h) is returned.

Definition at line 450 of file MSCFModel.cpp.

References INVALID_DOUBLE.

Referenced by MSLCM_SL2015::commitManoeuvre(), and MSDevice_SSM::estimateConflictTimes().

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◆ estimateSpeedAfterDistance()

double MSCFModel::estimateSpeedAfterDistance ( const double  dist,
const double  v,
const double  accel 
) const
inherited

Definition at line 765 of file MSCFModel.cpp.

References MSVehicleType::getMaxSpeed(), MAX2(), MIN2(), and MSCFModel::myType.

Referenced by MSCFModel::getMinimalArrivalSpeed(), MSCFModel::getMinimalArrivalSpeedEuler(), MSLink::getZipperSpeed(), and MSVehicle::planMoveInternal().

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◆ finalizeSpeed()

double MSCFModel_IDM::finalizeSpeed ( MSVehicle *const  veh,
double  vPos 
) const
virtual

Applies interaction with stops and lane changing model influences.

Parameters
[in]vehThe ego vehicle
[in]vPosThe possible velocity
Returns
The velocity after applying interactions with stops and lane change model influences

Reimplemented from MSCFModel.

Definition at line 67 of file MSCFModel_IDM.cpp.

References MSCFModel::finalizeSpeed(), MSVehicle::getCarFollowVariables(), MSVehicle::getLane(), MSLane::getVehicleMaxSpeed(), MSCFModel_IDM::VehicleVariables::levelOfService, myAdaptationFactor, myAdaptationTime, and TS.

◆ followSpeed()

double MSCFModel_IDM::followSpeed ( const MSVehicle *const  veh,
double  speed,
double  gap2pred,
double  predSpeed,
double  predMaxDecel,
const MSVehicle *const  pred = 0,
const CalcReason  usage = CalcReason::CURRENT 
) const
virtual

Computes the vehicle's safe speed (no dawdling)

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]gap2predThe (net) distance to the LEADER
[in]predSpeedThe speed of LEADER
Returns
EGO's safe speed
See also
MSCFModel::ffeV

Implements MSCFModel.

Definition at line 104 of file MSCFModel_IDM.cpp.

References _v(), MSCFModel::applyHeadwayAndSpeedDifferencePerceptionErrors(), MSVehicle::getLane(), and MSLane::getVehicleMaxSpeed().

Referenced by insertionFollowSpeed().

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◆ followSpeedTransient()

double MSCFModel::followSpeedTransient ( double  duration,
const MSVehicle *const  veh,
double  speed,
double  gap2pred,
double  predSpeed,
double  predMaxDecel 
) const
virtualinherited

Computes the vehicle's follow speed that avoids a collision for the given amount of time.

Returns the velocity of the vehicle in dependence to the vehicle's and its leader's values and the distance between them.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]gap2predThe (net) distance to the LEADER
[in]predSpeedThe speed of LEADER
[in]predMaxDecelThe maximum leader deceleration
Returns
EGO's safe speed

Definition at line 353 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::brakeGap(), DIST2SPEED, MSCFModel::distAfterTime(), gDebugFlag2, MSCFModel::getMaxDecel(), MSGlobals::gSemiImplicitEulerUpdate, MSCFModel::myDecel, SPEED2DIST, and TS.

Referenced by MSLCM_SL2015::commitFollowSpeed().

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◆ freeSpeed() [1/2]

double MSCFModel::freeSpeed ( const double  currentSpeed,
const double  decel,
const double  dist,
const double  maxSpeed,
const bool  onInsertion,
const double  actionStepLength 
)
staticinherited

Definition at line 100 of file MSCFModel.cpp.

References ACCEL2DIST, ACCEL2SPEED, DIST2SPEED, MSGlobals::gSemiImplicitEulerUpdate, MAX2(), SPEED2DIST, and TS.

◆ freeSpeed() [2/2]

double MSCFModel_IDM::freeSpeed ( const MSVehicle *const  veh,
double  speed,
double  seen,
double  maxSpeed,
const bool  onInsertion = false,
const CalcReason  usage = CalcReason::CURRENT 
) const
virtual

Computes the vehicle's safe speed without a leader.

Returns the velocity of the vehicle in dependence to the length of the free street and the target velocity at the end of the free range. If onInsertion is true, the vehicle may still brake before the next movement.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]seenThe look ahead distance
[in]maxSpeedThe maximum allowed speed
[in]onInsertionwhether speed at insertion is asked for
Returns
EGO's safe speed

Reimplemented from MSCFModel.

Definition at line 78 of file MSCFModel_IDM.cpp.

References _v(), MSVehicle::getLane(), getSecureGap(), MSLane::getVehicleMaxSpeed(), MAX2(), MIN2(), and MSCFModel::myDecel.

◆ gapExtrapolation()

double MSCFModel::gapExtrapolation ( const double  duration,
const double  currentGap,
double  v1,
double  v2,
double  a1 = 0,
double  a2 = 0,
const double  maxV1 = std::numeric_limits<double>::max(),
const double  maxV2 = std::numeric_limits<double>::max() 
)
staticinherited

return the resulting gap if, starting with gap currentGap, two vehicles continue with constant accelerations (velocities bounded by 0 and maxSpeed) for a given timespan of length 'duration'.

Parameters
[in]currentGap(pos(veh1) - pos(veh2) at start)
[in]v1initial speed of vehicle 1
[in]v2initial speed of vehicle 2
[in]a1acceleration of vehicle 1
[in]a2acceleration of vehicle 2
[in]maxV1maximal speed of vehicle 1
[in]maxV2maximal speed of vehicle 2
[in]durationtime span for the process
Returns
estimated gap after 'duration' seconds

Definition at line 564 of file MSCFModel.cpp.

References MSGlobals::gSemiImplicitEulerUpdate, MAX2(), MIN2(), and TS.

Referenced by MSLCM_SL2015::checkBlockingVehicles(), and MSLCM_LC2013::informFollower().

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◆ getApparentDecel()

double MSCFModel::getApparentDecel ( ) const
inlineinherited

Get the vehicle type's apparent deceleration [m/s^2] (the one regarded by its followers.

Returns
The apparent deceleration (in m/s^2) of vehicles of this class

Definition at line 280 of file MSCFModel.h.

References MSCFModel::myApparentDecel.

Referenced by MSVehicle::getCurrentApparentDecel(), and MSVehicleType::setApparentDecel().

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◆ getCollisionMinGapFactor()

double MSCFModel::getCollisionMinGapFactor ( ) const
inlineinherited

Get the factor of minGap that must be maintained to avoid a collision event.

Definition at line 293 of file MSCFModel.h.

References MSCFModel::myCollisionMinGapFactor.

Referenced by MSLane::detectCollisionBetween().

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◆ getEmergencyDecel()

double MSCFModel::getEmergencyDecel ( ) const
inlineinherited

Get the vehicle type's maximal physically possible deceleration [m/s^2].

Returns
The maximal physically possible deceleration (in m/s^2) of vehicles of this class

Definition at line 272 of file MSCFModel.h.

References MSCFModel::myEmergencyDecel.

Referenced by MSLane::checkFailure(), MSLCM_SL2015::commitManoeuvre(), MSCFModel_EIDM::finalizeSpeed(), MSLink::getZipperSpeed(), MSLane::handleCollisionBetween(), MSLane::handleIntermodalCollisionBetween(), MSVehicle::planMoveInternal(), and MSVehicleType::setEmergencyDecel().

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◆ getHeadwayTime()

virtual double MSCFModel::getHeadwayTime ( ) const
inlinevirtualinherited

Get the driver's desired headway [s].

Returns
The desired headway of this class' drivers in s

Definition at line 311 of file MSCFModel.h.

References MSCFModel::myHeadwayTime.

Referenced by MSVehicleType::check(), MSLaneChanger::checkChange(), MSVehicle::checkRewindLinkLanes(), MSLaneChanger::computeSurplusGap(), MSVehicle::Influencer::gapControlSpeed(), MSCFModel::getMinimalArrivalSpeed(), MSCFModel::getMinimalArrivalSpeedEuler(), MSVehicle::isLeader(), LIBSUMO_NAMESPACE::Vehicle::openGap(), MESegment::receive(), MSCalibrator::remainingVehicleCapacity(), MSDevice_ToC::requestToC(), MESegment::send(), MSVehicleType::setTau(), and MSVehicle::updateBestLanes().

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◆ getImperfection()

virtual double MSCFModel::getImperfection ( ) const
inlinevirtualinherited

Get the driver's imperfection.

Returns
The imperfection of drivers of this class

Reimplemented in MSCFModel_Daniel1, MSCFModel_KraussOrig1, MSCFModel_PWag2009, and MSCFModel_SmartSK.

Definition at line 303 of file MSCFModel.h.

Referenced by MSVehicleType::setImperfection().

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◆ getMaxAccel()

double MSCFModel::getMaxAccel ( ) const
inlineinherited

Get the vehicle type's maximum acceleration [m/s^2].

Returns
The maximum acceleration (in m/s^2) of vehicles of this class

Definition at line 256 of file MSCFModel.h.

References MSCFModel::myAccel.

Referenced by MSVehicle::accelThresholdForWaiting(), MSDevice_GLOSA::adaptSpeed(), MSVehicle::adaptToLeaders(), MSLCM_LC2013::anticipateFollowSpeed(), MSLaneChanger::checkOppositeStop(), MSLCM_SL2015::commitManoeuvre(), MSLaneChanger::computeOvertakingTime(), MSDevice_GLOSA::distance_at_continuous_accel(), MSDevice_GLOSA::earliest_arrival(), MSVehicle::estimateTimeToNextStop(), MSLaneChanger::getMaxOvertakingSpeed(), MSCFModel::getMinimalArrivalTime(), MSLink::getZipperSpeed(), MSVehicle::isLeader(), MSCFModel::maxNextSpeed(), MSCFModel_CC::maxNextSpeed(), MSCFModel_KraussPS::maxNextSpeed(), MSVehicle::planMoveInternal(), MSVehicleType::setAccel(), MSDevice_ToC::setState(), MSDevice_GLOSA::time_to_junction_at_continuous_accel(), MSLCM_SL2015::updateExpectedSublaneSpeeds(), and MSMeanData_Emissions::MSLaneMeanDataValues::write().

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◆ getMaxDecel()

double MSCFModel::getMaxDecel ( ) const
inlineinherited

Get the vehicle type's maximal comfortable deceleration [m/s^2].

Returns
The maximal comfortable deceleration (in m/s^2) of vehicles of this class

Definition at line 264 of file MSCFModel.h.

References MSCFModel::myDecel.

Referenced by MSLCM_LC2013::_wantsChange(), MSDevice_GLOSA::adaptSpeed(), MSLCM_LC2013::adaptSpeedToPedestrians(), MSVehicle::adaptToOncomingLeader(), MSPModel_Striping::addCrossingVehs(), MSCriticalFollowerDistanceInfo::addFollower(), MSLCM_LC2013::anticipateFollowSpeed(), MSLink::blockedByFoe(), MSLCHelper::canSaveBlockerLength(), MSLCM_SL2015::checkBlockingVehicles(), MSLaneChanger::checkChange(), MSLane::checkForPedestrians(), MSVehicle::checkRewindLinkLanes(), MSLCM_SL2015::checkStrategicChange(), MSLCM_SL2015::commitFollowSpeed(), MSLink::computeFoeArrivalTimeBraking(), MSLaneChanger::computeOvertakingTime(), MSLaneChanger::computeSafeOppositeLength(), MSLink::couldBrakeForLeader(), MSVehicle::estimateTimeToNextStop(), MSCFModel::followSpeedTransient(), MSLane::freeInsertion(), MSLaneChanger::getColumnleader(), MSLane::getCriticalLeader(), MSLane::getLeaderOnConsecutive(), MSLaneChanger::getMaxOvertakingSpeed(), MSCFModel::getMinimalArrivalSpeed(), MSCFModel::getMinimalArrivalSpeedEuler(), MSCFModel::getMinimalArrivalTime(), MSLane::getMissingRearGap(), LIBSUMO_NAMESPACE::Vehicle::getNeighbors(), LIBSUMO_NAMESPACE::Vehicle::getNextLinks(), MSLCHelper::getSpeedPreservingSecureGap(), MSLink::getZipperSpeed(), MSIdling_Stop::idle(), MSLCM_DK2008::informBlocker(), MSLCM_SL2015::informFollower(), MSLCM_LC2013::informFollower(), MSLCM_SL2015::informLeader(), MSLCM_LC2013::informLeader(), MSLane::insertVehicle(), MSLane::isInsertionSuccess(), MSVehicle::isLeader(), MESegment::isOpen(), MSLane::lastInsertion(), MSCFModel_KraussPS::maxNextSpeed(), MSDevice_Bluelight::notifyMove(), MSLCM_LC2013::overtakeDistance(), MSVehicle::planMoveInternal(), MSVehicle::processLinkApproaches(), MSVehicle::processNextStop(), MSAbstractLaneChangeModel::remainingTime(), MSLane::safeInsertionSpeed(), GUIVehicle::selectBlockingFoes(), MSVehicleType::setDecel(), MSAbstractLaneChangeModel::setFollowerGaps(), MSAbstractLaneChangeModel::setLeaderGaps(), MSAbstractLaneChangeModel::setOrigLeaderGaps(), MSLCM_LC2013::slowDownForBlocked(), MSLCM_SL2015::slowDownForBlocked(), MSVehicle::slowDownForSchedule(), MSLCHelper::updateBlockerLength(), MSLCM_SL2015::updateExpectedSublaneSpeeds(), MSVehicle::updateState(), MSVehicleControl::vehicleDeparted(), MSLCM_DK2008::wantsChangeToLeft(), and MSLCM_DK2008::wantsChangeToRight().

◆ getMinimalArrivalSpeed()

double MSCFModel::getMinimalArrivalSpeed ( double  dist,
double  currentSpeed 
) const
inherited

Computes the minimal possible arrival speed after covering a given distance.

Parameters
[in]distDistance to be covered
[in]currentSpeedActual speed of vehicle

Definition at line 538 of file MSCFModel.cpp.

References MSCFModel::estimateSpeedAfterDistance(), MSCFModel::getHeadwayTime(), and MSCFModel::getMaxDecel().

Referenced by MSVehicle::planMoveInternal().

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◆ getMinimalArrivalSpeedEuler()

double MSCFModel::getMinimalArrivalSpeedEuler ( double  dist,
double  currentSpeed 
) const
inherited

Computes the minimal possible arrival speed after covering a given distance for Euler update.

Parameters
[in]distDistance to be covered
[in]currentSpeedActual speed of vehicle

Definition at line 545 of file MSCFModel.cpp.

References MSCFModel::estimateSpeedAfterDistance(), MSCFModel::getHeadwayTime(), MSCFModel::getMaxDecel(), and INVALID_SPEED.

Referenced by MSVehicle::planMoveInternal(), and MSVehicle::registerInsertionApproach().

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◆ getMinimalArrivalTime()

SUMOTime MSCFModel::getMinimalArrivalTime ( double  dist,
double  currentSpeed,
double  arrivalSpeed 
) const
inherited

Computes the minimal time needed to cover a distance given the desired speed at arrival.

Parameters
[in]distDistance to be covered
[in]currentSpeedActual speed of vehicle
[in]arrivalSpeedDesired speed at arrival

Definition at line 429 of file MSCFModel.cpp.

References MSCFModel::getMaxAccel(), MSCFModel::getMaxDecel(), MAX3(), SUMO_const_haltingSpeed, and TIME2STEPS.

Referenced by MSVehicle::getArrivalTime().

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◆ getModelID()

int MSCFModel_IDM::getModelID ( ) const
inlinevirtual

Returns the model's name.

Returns
The model's name
See also
MSCFModel::getModelName

Implements MSCFModel.

Definition at line 164 of file MSCFModel_IDM.h.

References myAdaptationFactor, SUMO_TAG_CF_IDM, and SUMO_TAG_CF_IDMM.

◆ getParameter()

virtual std::string MSCFModel::getParameter ( const MSVehicle *  veh,
const std::string &  key 
) const
inlinevirtualinherited

try to get the given parameter for this carFollowingModel

Parameters
[in]vehthe vehicle from which the parameter must be retrieved
[in]keythe key of the parameter
Returns
the value of the requested parameter

Reimplemented in MSCFModel_CACC, and MSCFModel_CC.

Definition at line 646 of file MSCFModel.h.

References UNUSED_PARAMETER.

Referenced by MSBaseVehicle::getPrefixedParameter().

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◆ getSecureGap()

double MSCFModel_IDM::getSecureGap ( const MSVehicle *const  veh,
const MSVehicle *const  pred,
const double  speed,
const double  leaderSpeed,
const double  leaderMaxDecel 
) const
virtual

Returns the minimum gap to reserve if the leader is braking at maximum (>=0)

Parameters
[in]vehThe vehicle itself, for obtaining other values
[in]predThe leader vehicle, for obtaining other values
[in]speedEGO's speed
[in]leaderSpeedLEADER's speed
[in]leaderMaxDecelLEADER's max. deceleration rate

Reimplemented from MSCFModel.

Definition at line 191 of file MSCFModel_IDM.cpp.

References MAX2(), MSCFModel::myHeadwayTime, and myTwoSqrtAccelDecel.

Referenced by freeSpeed().

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◆ getSpeedAfterMaxDecel()

virtual double MSCFModel::getSpeedAfterMaxDecel ( double  v) const
inlinevirtualinherited

Returns the velocity after maximum deceleration.

Parameters
[in]vThe velocity
Returns
The velocity after maximum deceleration

Reimplemented in MSCFModel_Rail.

Definition at line 403 of file MSCFModel.h.

References ACCEL2SPEED, MAX2(), and MSCFModel::myDecel.

Referenced by MSLCM_LC2013::_wantsChange(), MSCFModel_Daniel1::finalizeSpeed(), MSCFModel_SmartSK::followSpeed(), and MSCFModel_SmartSK::stopSpeed().

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◆ getStartupDelay()

SUMOTime MSCFModel::getStartupDelay ( ) const
inlineinherited

Get the vehicle type's startupDelay.

Returns
The startupDelay

Definition at line 287 of file MSCFModel.h.

References MSCFModel::myStartupDelay.

Referenced by MSRailSignal::constraintsAllow(), MSVehicle::executeMove(), and MSDriveWay::foeDriveWayOccupied().

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◆ insertionFollowSpeed()

double MSCFModel_IDM::insertionFollowSpeed ( const MSVehicle *const  veh,
double  speed,
double  gap2pred,
double  predSpeed,
double  predMaxDecel,
const MSVehicle *const  pred = 0 
) const
virtual

Computes the vehicle's safe speed (no dawdling) This method is used during the insertion stage. Whereas the method followSpeed returns the desired speed which may be lower than the safe speed, this method only considers safety constraints.

Returns the velocity of the vehicle in dependence to the vehicle's and its leader's values and the distance between them.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]gap2predThe (net) distance to the LEADER
[in]predSpeedThe speed of LEADER
Returns
EGO's safe speed

Reimplemented from MSCFModel.

Definition at line 111 of file MSCFModel_IDM.cpp.

References ACCEL2SPEED, followSpeed(), MSCFModel::FUTURE, Named::getID(), Named::getIDSecure(), insertionFollowSpeed(), MAX2(), MSCFModel::myHeadwayTime, myTwoSqrtAccelDecel, and SIMTIME.

Referenced by insertionFollowSpeed().

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◆ insertionStopSpeed()

double MSCFModel_IDM::insertionStopSpeed ( const MSVehicle *const  veh,
double  speed,
double  gap 
) const
virtual

Computes the vehicle's safe speed for approaching an obstacle at insertion without constraints due to acceleration capabilities and previous speeds.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]gapThe (net) distance to the obstacle
Returns
EGO's safe speed for approaching a non-moving obstacle at insertion
See also
stopSpeed() and insertionFollowSpeed()

Reimplemented from MSCFModel.

Definition at line 139 of file MSCFModel_IDM.cpp.

References ACCEL2SPEED, MSCFModel::insertionStopSpeed(), and MSCFModel::myDecel.

◆ interactionGap()

double MSCFModel_IDM::interactionGap ( const MSVehicle * const  veh,
double  vL 
) const
virtual

Returns the maximum gap at which an interaction between both vehicles occurs.

"interaction" means that the LEADER influences EGO's speed.

Parameters
[in]vehThe EGO vehicle
[in]vLLEADER's speed
Returns
The interaction gap
Todo:
evaluate signature
See also
MSCFModel::interactionGap
Todo:
update interactionGap logic to IDM

Reimplemented from MSCFModel.

Definition at line 178 of file MSCFModel_IDM.cpp.

References MSVehicle::getLane(), MSVehicle::getSpeed(), MSLane::getVehicleMaxSpeed(), MAX2(), MSCFModel::myAccel, MSCFModel::myDecel, myDelta, and SPEED2DIST.

◆ maximumLaneSpeedCF()

virtual double MSCFModel::maximumLaneSpeedCF ( const MSVehicle *const  veh,
double  maxSpeed,
double  maxSpeedLane 
) const
inlinevirtualinherited

Returns the maximum velocity the CF-model wants to achieve in the next step.

Parameters
[in]maxSpeedThe maximum achievable speed in the next step
[in]maxSpeedLaneThe maximum speed the vehicle wants to drive on this lane (Speedlimit*SpeedFactor)

Reimplemented in MSCFModel_CACC, and MSCFModel_EIDM.

Definition at line 224 of file MSCFModel.h.

References MSCFModel::applyOwnSpeedPerceptionError(), and MIN2().

Referenced by MSVehicle::planMoveInternal().

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◆ maximumSafeFollowSpeed()

double MSCFModel::maximumSafeFollowSpeed ( double  gap,
double  egoSpeed,
double  predSpeed,
double  predMaxDecel,
bool  onInsertion = false 
) const
inherited

Returns the maximum safe velocity for following the given leader.

Parameters
[in]gap2predThe (net) distance to the LEADER
[in]egoSpeedThe FOLLOWERS's speed
[in]predSpeedThe LEADER's speed
[in]predMaxDecelThe LEADER's maximum deceleration
[in]onInsertionIndicator whether the call is triggered during vehicle insertion
Returns
the safe velocity

Returns the SK-vsafe.

Definition at line 922 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::brakeGap(), MSCFModel::calculateEmergencyDeceleration(), DEBUG_COND2, EMERGENCY_DECEL_AMPLIFIER, MSGlobals::gComputeLC, MSGlobals::gSemiImplicitEulerUpdate, MAX2(), MSCFModel::maximumSafeStopSpeed(), MIN2(), MSCFModel::myDecel, MSCFModel::myEmergencyDecel, MSCFModel::myHeadwayTime, SIMTIME, and SPEED2ACCEL.

Referenced by MSLCM_LC2013::anticipateFollowSpeed(), MSCFModel_ACC::followSpeed(), MSCFModel_CACC::followSpeed(), MSCFModel_Krauss::followSpeed(), MSCFModel_KraussOrig1::followSpeed(), MSCFModel_CACC::insertionFollowSpeed(), and MSCFModel::insertionFollowSpeed().

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◆ maximumSafeStopSpeed()

double MSCFModel::maximumSafeStopSpeed ( double  gap,
double  decel,
double  currentSpeed,
bool  onInsertion = false,
double  headway = -1,
bool  relaxEmergency = true 
) const
inherited

Returns the maximum next velocity for stopping within gap.

Parameters
[in]gapThe (net) distance to the desired stopping point
[in]decelThe desired deceleration rate
[in]currentSpeedThe current speed of the ego vehicle
[in]onInsertionIndicator whether the call is triggered during vehicle insertion
[in]headwayThe desired time headway to be included in the calculations (default argument -1 induces the use of myHeadway)
[in]relaxEmergencyWhether emergency deceleration should be reduced (at the cost of staying in a dangerous situation for longer)

Definition at line 774 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::calculateEmergencyDeceleration(), EMERGENCY_DECEL_AMPLIFIER, MSGlobals::gSemiImplicitEulerUpdate, MAX2(), MSCFModel::maximumSafeStopSpeedBallistic(), MSCFModel::maximumSafeStopSpeedEuler(), MIN2(), MSCFModel::myDecel, MSCFModel::myEmergencyDecel, SIMTIME, and SPEED2ACCEL.

Referenced by MSLCM_LC2013::anticipateFollowSpeed(), MSCFModel_Rail::followSpeed(), MSVehicle::handleCollisionStop(), MSCFModel::insertionStopSpeed(), MSCFModel::maximumSafeFollowSpeed(), MSVehicle::planMoveInternal(), stopSpeed(), MSCFModel_Rail::stopSpeed(), MSCFModel_W99::stopSpeed(), MSCFModel_Wiedemann::stopSpeed(), MSCFModel_ACC::stopSpeed(), MSCFModel_CACC::stopSpeed(), and MSCFModel_Krauss::stopSpeed().

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◆ maximumSafeStopSpeedBallistic()

double MSCFModel::maximumSafeStopSpeedBallistic ( double  gap,
double  decel,
double  currentSpeed,
bool  onInsertion = false,
double  headway = -1 
) const
inherited

Returns the maximum next velocity for stopping within gap when using the ballistic positional update.

Note
This takes into account the driver's reaction time tau (i.e. the desired headway) and the car's current speed. (The latter is required to calculate the distance covered in the following timestep.)
Parameters
[in]gapThe (net) distance to the desired stopping point
[in]decelThe desired deceleration rate
[in]currentSpeedThe current speed of the ego vehicle
[in]onInsertionIndicator whether the call is triggered during vehicle insertion
[in]headwayThe desired time headway to be included in the calculations (default argument -1 induces the use of myHeadway)
Returns
the safe velocity (to be attained at the end of the following time step) that assures the possibility of stopping within gap. If a negative value is returned, the required stop has to take place before the end of the time step.

Definition at line 855 of file MSCFModel.cpp.

References ACCEL2SPEED, MAX2(), MSCFModel::myEmergencyDecel, MSCFModel::myHeadwayTime, and TS.

Referenced by MSCFModel_EIDM::maximumSafeStopSpeed(), MSCFModel::maximumSafeStopSpeed(), and MSCFModel_KraussOrig1::stopSpeed().

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◆ maximumSafeStopSpeedEuler()

double MSCFModel::maximumSafeStopSpeedEuler ( double  gap,
double  decel,
bool  onInsertion,
double  headway 
) const
inherited

Returns the maximum next velocity for stopping within gap when using the semi-implicit Euler update.

Parameters
[in]gapThe (net) distance to the LEADER
[in]decelThe desired deceleration rate
[in]onInsertionIndicator whether the call is triggered during vehicle insertion
[in]headwayThe desired time headway to be included in the calculations (-1 induces the use of myHeadway)

Definition at line 827 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::myHeadwayTime, and TS.

Referenced by MSCFModel::maximumSafeStopSpeed().

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◆ maxNextSafeMin()

virtual double MSCFModel::maxNextSafeMin ( double  speed,
const MSVehicle *const  veh = 0 
) const
inlinevirtualinherited

Returns the maximum speed given the current speed and regarding driving dynamics.

Parameters
[in]speedThe vehicle's current speed
[in]speedThe vehicle itself, for obtaining other values
Returns
The maximum possible speed for the next step taking driving dynamics into account

Reimplemented in MSCFModel_EIDM.

Definition at line 347 of file MSCFModel.h.

References MSCFModel::maxNextSpeed().

◆ maxNextSpeed()

double MSCFModel::maxNextSpeed ( double  speed,
const MSVehicle *const  veh 
) const
virtualinherited

Returns the maximum speed given the current speed.

The implementation of this method must take into account the time step duration.

Justification: Due to air brake or other influences, the vehicle's next maximum speed may depend on the vehicle's current speed (given).

Parameters
[in]speedThe vehicle's current speed
[in]vehThe vehicle itself, for obtaining other values
Returns
The maximum possible speed for the next step

Reimplemented in MSCFModel_CC, MSCFModel_KraussPS, and MSCFModel_Rail.

Definition at line 292 of file MSCFModel.cpp.

References ACCEL2SPEED, MSCFModel::getMaxAccel(), MSVehicleType::getMaxSpeed(), MIN2(), and MSCFModel::myType.

Referenced by MSCFModel_EIDM::_v(), MSLCM_SL2015::commitManoeuvre(), MSCFModel::finalizeSpeed(), MSCFModel_Daniel1::finalizeSpeed(), MSCFModel_EIDM::finalizeSpeed(), MSCFModel_Daniel1::followSpeed(), MSCFModel_Kerner::followSpeed(), MSCFModel_Krauss::followSpeed(), MSCFModel_KraussOrig1::followSpeed(), MSCFModel_SmartSK::followSpeed(), MSLCHelper::getSpeedPreservingSecureGap(), MSCFModel::interactionGap(), MSCFModel::maxNextSafeMin(), MSLCM_DK2008::patchSpeed(), MSVehicle::planMoveInternal(), MSVehicle::processTraCISpeedControl(), MSCFModel_W99::stopSpeed(), MSCFModel_Wiedemann::stopSpeed(), MSCFModel_ACC::stopSpeed(), MSCFModel_CACC::stopSpeed(), MSCFModel_Daniel1::stopSpeed(), MSCFModel_Kerner::stopSpeed(), MSCFModel_Krauss::stopSpeed(), MSCFModel_KraussOrig1::stopSpeed(), and MSCFModel_SmartSK::stopSpeed().

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◆ minNextSpeed()

double MSCFModel_IDM::minNextSpeed ( double  speed,
const MSVehicle *const  veh = 0 
) const
virtual

Returns the minimum speed given the current speed (depends on the numerical update scheme and its step width) Note that it wouldn't have to depend on the numerical update scheme if the semantics would rely on acceleration instead of velocity.

Parameters
[in]speedThe vehicle's current speed
[in]speedThe vehicle itself, for obtaining other values, if needed as e.g. road conditions.
Returns
The minimum possible speed for the next step

Reimplemented from MSCFModel.

Definition at line 53 of file MSCFModel_IDM.cpp.

References ACCEL2SPEED, MSGlobals::gSemiImplicitEulerUpdate, MAX2(), MIN2(), MSCFModel::myDecel, and MSCFModel::myEmergencyDecel.

◆ minNextSpeedEmergency()

double MSCFModel::minNextSpeedEmergency ( double  speed,
const MSVehicle *const  veh = 0 
) const
virtualinherited

Returns the minimum speed after emergency braking, given the current speed (depends on the numerical update scheme and its step width) Note that it wouldn't have to depend on the numerical update scheme if the semantics would rely on acceleration instead of velocity.

Parameters
[in]speedThe vehicle's current speed
[in]speedThe vehicle itself, for obtaining other values, if needed as e.g. road conditions.
Returns
The minimum possible speed for the next step

Reimplemented in MSCFModel_Rail.

Definition at line 309 of file MSCFModel.cpp.

References ACCEL2SPEED, MSGlobals::gSemiImplicitEulerUpdate, MAX2(), and MSCFModel::myEmergencyDecel.

Referenced by MSLCM_LC2013::_patchSpeed(), MSLCM_SL2015::_patchSpeed(), MSCFModel::finalizeSpeed(), MSCFModel_EIDM::finalizeSpeed(), MSCFModel_Krauss::followSpeed(), and MSVehicle::Influencer::implicitSpeedRemote().

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◆ operator=()

MSCFModel_IDM & MSCFModel_IDM::operator= ( const MSCFModel_IDM &  s)
private

Invalidated assignment operator.

◆ passingTime()

double MSCFModel::passingTime ( const double  lastPos,
const double  passedPos,
const double  currentPos,
const double  lastSpeed,
const double  currentSpeed 
)
staticinherited

Calculates the time at which the position passedPosition has been passed In case of a ballistic update, the possibility of a stop within a time step requires more information about the last time-step than in case of the euler update to determine the last position if the currentSpeed is zero.

Parameters
[in]lastPosthe position at time t=0 (must be < currentPos)
[in]passedPosthe position for which the passing time is to be determined (has to lie within [lastPos, currentPos]!)
[in]currentPosthe position at time t=TS (one time-step after lastPos) (must be > lastPos)
[in]lastSpeedthe speed at moment t=0
[in]currentSpeedthe speed at moment t=TS
Returns
time t in [0,TS] at which passedPos in [lastPos, currentPos] was passed.

Definition at line 658 of file MSCFModel.cpp.

References MSGlobals::gSemiImplicitEulerUpdate, MAX2(), MIN2(), SPEED2ACCEL, TS, and WRITE_ERROR.

Referenced by MSE2Collector::calculateTimeLossAndTimeOnDetector(), MSDevice_SSM::checkConflictEntryAndExit(), MSInductLoop::notifyMove(), MSInstantInductLoop::notifyMove(), MSMeanData::MeanDataValues::notifyMove(), MSE3Collector::MSE3LeaveReminder::notifyMove(), and MSE3Collector::MSE3EntryReminder::notifyMove().

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◆ patchSpeedBeforeLC()

virtual double MSCFModel::patchSpeedBeforeLC ( const MSVehicle *  veh,
double  vMin,
double  vMax 
) const
inlinevirtualinherited

apply custom speed adaptations within the given speed bounds

Reimplemented in MSCFModel_Krauss, MSCFModel_KraussOrig1, MSCFModel_KraussX, MSCFModel_PWag2009, and MSCFModel_SmartSK.

Definition at line 102 of file MSCFModel.h.

References UNUSED_PARAMETER.

Referenced by MSCFModel::finalizeSpeed().

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◆ setApparentDecel()

virtual void MSCFModel::setApparentDecel ( double  decel)
inlinevirtualinherited

Sets a new value for the apparent deceleration [m/s^2].

Parameters
[in]decelThe new deceleration in m/s^2

Definition at line 552 of file MSCFModel.h.

References MSCFModel::myApparentDecel.

Referenced by MSVehicleType::setApparentDecel().

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◆ setCollisionMinGapFactor()

void MSCFModel::setCollisionMinGapFactor ( const double  factor)
inlineinherited

Sets a new value for the factor of minGap that must be maintained to avoid a collision event.

Parameters
[in]factorThe new minGap factor

Definition at line 559 of file MSCFModel.h.

References MSCFModel::myCollisionMinGapFactor.

Referenced by MSDevice_Bluelight::notifyMove().

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◆ setEmergencyDecel()

virtual void MSCFModel::setEmergencyDecel ( double  decel)
inlinevirtualinherited

Sets a new value for maximal physically possible deceleration [m/s^2].

Parameters
[in]decelThe new deceleration in m/s^2

Definition at line 544 of file MSCFModel.h.

References MSCFModel::myEmergencyDecel.

Referenced by MSCFModel_Rail::MSCFModel_Rail(), and MSVehicleType::setEmergencyDecel().

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◆ setHeadwayTime()

virtual void MSCFModel::setHeadwayTime ( double  headwayTime)
inlinevirtualinherited

Sets a new value for desired headway [s].

Parameters
[in]headwayTimeThe new desired headway (in s)

Reimplemented in MSCFModel_CACC, MSCFModel_Daniel1, MSCFModel_KraussOrig1, and MSCFModel_SmartSK.

Definition at line 574 of file MSCFModel.h.

References MSCFModel::myHeadwayTime.

Referenced by MSVehicle::Influencer::gapControlSpeed(), MSCFModel_CACC::MSCFModel_CACC(), MSCFModel_CACC::setHeadwayTime(), and MSVehicleType::setTau().

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◆ setImperfection()

virtual void MSCFModel::setImperfection ( double  imperfection)
inlinevirtualinherited

Sets a new value for driver imperfection.

Parameters
[in]accelThe new driver imperfection

Reimplemented in MSCFModel_Daniel1, MSCFModel_KraussOrig1, and MSCFModel_SmartSK.

Definition at line 566 of file MSCFModel.h.

References UNUSED_PARAMETER.

Referenced by MSVehicleType::setImperfection().

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◆ setMaxAccel()

virtual void MSCFModel::setMaxAccel ( double  accel)
inlinevirtualinherited

Sets a new value for maximum acceleration [m/s^2].

Parameters
[in]accelThe new acceleration in m/s^2

Definition at line 528 of file MSCFModel.h.

References MSCFModel::myAccel.

Referenced by MSVehicleType::setAccel(), and MSDevice_ToC::setState().

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◆ setMaxDecel()

virtual void MSCFModel::setMaxDecel ( double  decel)
inlinevirtualinherited

Sets a new value for maximal comfortable deceleration [m/s^2].

Parameters
[in]decelThe new deceleration in m/s^2

Reimplemented in MSCFModel_Daniel1, MSCFModel_KraussOrig1, and MSCFModel_SmartSK.

Definition at line 536 of file MSCFModel.h.

References MSCFModel::myDecel.

Referenced by MSLCM_SL2015::commitFollowSpeed(), MSCFModel_Rail::MSCFModel_Rail(), and MSVehicleType::setDecel().

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◆ setParameter()

virtual void MSCFModel::setParameter ( MSVehicle *  veh,
const std::string &  key,
const std::string &  value 
) const
inlinevirtualinherited

try to set the given parameter for this carFollowingModel

Parameters
[in]vehthe vehicle for which the parameter must be set
[in]keythe key of the parameter
[in]valuethe value to be set for the given parameter

Reimplemented in MSCFModel_CACC, and MSCFModel_CC.

Definition at line 659 of file MSCFModel.h.

References UNUSED_PARAMETER.

Referenced by MSBaseVehicle::setCarFollowModelParameter().

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◆ speedAfterTime()

double MSCFModel::speedAfterTime ( const double  t,
const double  oldSpeed,
const double  dist 
)
staticinherited

Calculates the speed after a time t \in [0,TS] given the initial speed and the distance traveled in an interval of step length TS.

Note
If the acceleration were known, this would be much nicer, but in this way we need to reconstruct it (for the ballistic update at least, where we assume that a stop may occur within the interval)
Parameters
[in]ttime in [0,TS] for which the speed shall be determined
[in]oldSpeedspeed before the last time step (referred to as t == 0)
[in]distancecovered
Returns
speed at time t

Definition at line 736 of file MSCFModel.cpp.

References DIST2SPEED, MSGlobals::gSemiImplicitEulerUpdate, and TS.

Referenced by MSE2Collector::calculateTimeLossAndTimeOnDetector(), MSInstantInductLoop::notifyMove(), and MSMeanData::MeanDataValues::notifyMove().

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◆ startupDelayStopped()

virtual bool MSCFModel::startupDelayStopped ( ) const
inlinevirtualinherited

whether startupDelay should be applied after stopping

Reimplemented in MSCFModel_Rail.

Definition at line 316 of file MSCFModel.h.

◆ stopSpeed() [1/2]

double MSCFModel::stopSpeed ( const MSVehicle *const  veh,
const double  speed,
double  gap,
const CalcReason  usage = CalcReason::CURRENT 
) const
inlineinherited

Computes the vehicle's safe speed for approaching a non-moving obstacle (no dawdling)

Returns the velocity of the vehicle when approaching a static object (such as the end of a lane) assuming no reaction time is needed.

Parameters
[in]vehThe vehicle (EGO)
[in]speedThe vehicle's speed
[in]gapThe (net) distance to the obstacle
[in]usageWhat the return value is used for
Returns
EGO's safe speed for approaching a non-moving obstacle
Todo:
generic Interface, models can call for the values they need

Definition at line 168 of file MSCFModel.h.

References MSCFModel::myDecel, and MSCFModel::stopSpeed().

Referenced by MSLCM_LC2013::_patchSpeed(), MSLCM_SL2015::_patchSpeed(), MSLCM_LC2013::adaptSpeedToPedestrians(), MSVehicle::adaptToJunctionLeader(), MSVehicle::adaptToLeader(), MSVehicle::adaptToOncomingLeader(), MSCFModel::applyHeadwayPerceptionError(), MSLane::checkForPedestrians(), LIBSUMO_NAMESPACE::Vehicle::getStopSpeed(), MSLCM_SL2015::informLeader(), MSLCM_LC2013::informLeader(), MSLCM_SL2015::informLeaders(), MSCFModel::insertionStopSpeed(), MSLane::isInsertionSuccess(), MSLCM_DK2008::patchSpeed(), MSVehicle::planMoveInternal(), MSVehicle::processNextStop(), MSCFModel::stopSpeed(), and MSCFModel_CC::stopSpeed().

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◆ stopSpeed() [2/2]

double MSCFModel_IDM::stopSpeed ( const MSVehicle *const  veh,
const double  speed,
double  gap,
double  decel,
const CalcReason  usage = CalcReason::CURRENT 
) const
virtual

Computes the vehicle's safe speed for approaching a non-moving obstacle (no dawdling)

Parameters
[in]vehThe vehicle (EGO)
[in]gap2predThe (net) distance to the obstacle
Returns
EGO's safe speed for approaching a non-moving obstacle
See also
MSCFModel::ffeS
Todo:
generic Interface, models can call for the values they need

Implements MSCFModel.

Definition at line 152 of file MSCFModel_IDM.cpp.

References _v(), MSCFModel::applyHeadwayPerceptionError(), DIST2SPEED, MSVehicle::getActionStepLengthSecs(), MSVehicle::getLane(), MSLane::getVehicleMaxSpeed(), MSCFModel::maximumSafeStopSpeed(), and MIN2().

Field Documentation

◆ myAccel

double MSCFModel::myAccel
protectedinherited

The vehicle's maximum acceleration [m/s^2].

Definition at line 698 of file MSCFModel.h.

Referenced by MSCFModel_EIDM::_v(), _v(), MSCFModel_Kerner::_v(), MSCFModel_Wiedemann::_v(), MSCFModel_CC::createVehicleVariables(), MSCFModel_Daniel1::dawdle(), MSCFModel_KraussOrig1::dawdle(), MSCFModel_SmartSK::dawdle(), MSCFModel_Krauss::dawdle2(), MSCFModel_KraussX::dawdleX(), MSCFModel_PWag2009::followSpeed(), MSCFModel_Wiedemann::fullspeed(), MSCFModel::getMaxAccel(), MSCFModel_EIDM::getSecureGap(), MSCFModel_EIDM::interactionGap(), interactionGap(), MSCFModel_EIDM::internalsecuregap(), MSCFModel_EIDM::maximumSafeFollowSpeed(), MSCFModel_EIDM::maximumSafeStopSpeed(), MSCFModel_SmartSK::MSCFModel_SmartSK(), MSCFModel_W99::MSCFModel_W99(), MSCFModel_EIDM::patchSpeedBeforeLCEIDM(), MSCFModel::setMaxAccel(), MSCFModel_CC::setParameter(), MSCFModel_EIDM::slowToStartTerm(), and MSCFModel_PWag2009::stopSpeed().

◆ myAdaptationFactor

const double MSCFModel_IDM::myAdaptationFactor
private

The IDMM adaptation factor beta.

Definition at line 210 of file MSCFModel_IDM.h.

Referenced by _v(), createVehicleVariables(), finalizeSpeed(), and getModelID().

◆ myAdaptationTime

const double MSCFModel_IDM::myAdaptationTime
private

The IDMM adaptation time tau.

Definition at line 213 of file MSCFModel_IDM.h.

Referenced by finalizeSpeed().

◆ myApparentDecel

double MSCFModel::myApparentDecel
protectedinherited

The vehicle's deceleration as expected by surrounding traffic [m/s^2].

Definition at line 705 of file MSCFModel.h.

Referenced by MSCFModel::getApparentDecel(), and MSCFModel::setApparentDecel().

◆ myCollisionMinGapFactor

double MSCFModel::myCollisionMinGapFactor
protectedinherited

The factor of minGap that must be maintained to avoid a collision event.

Definition at line 707 of file MSCFModel.h.

Referenced by MSCFModel_W99::followSpeed(), MSCFModel::getCollisionMinGapFactor(), MSCFModel_ACC::MSCFModel_ACC(), MSCFModel_CACC::MSCFModel_CACC(), MSCFModel_EIDM::MSCFModel_EIDM(), MSCFModel_IDM(), MSCFModel_Kerner::MSCFModel_Kerner(), MSCFModel_PWag2009::MSCFModel_PWag2009(), MSCFModel_W99::MSCFModel_W99(), MSCFModel_Wiedemann::MSCFModel_Wiedemann(), and MSCFModel::setCollisionMinGapFactor().

◆ myDecel

double MSCFModel::myDecel
protectedinherited

The vehicle's maximum deceleration [m/s^2].

Definition at line 701 of file MSCFModel.h.

Referenced by MSCFModel_EIDM::_v(), MSCFModel_Kerner::_v(), MSCFModel_Wiedemann::_v(), MSCFModel_SmartSK::_vsafe(), MSCFModel_Daniel1::_vsafe(), MSCFModel::brakeGap(), MSCFModel_EIDM::brakeGap(), MSCFModel_CC::createVehicleVariables(), MSCFModel_PWag2009::followSpeed(), MSCFModel_Rail::followSpeed(), MSCFModel::followSpeedTransient(), MSCFModel_Rail::freeSpeed(), MSCFModel::freeSpeed(), MSCFModel_EIDM::freeSpeed(), freeSpeed(), MSCFModel::getMaxDecel(), MSCFModel::getSecureGap(), MSCFModel_EIDM::getSecureGap(), MSCFModel::getSpeedAfterMaxDecel(), MSCFModel::insertionStopSpeed(), MSCFModel_EIDM::insertionStopSpeed(), insertionStopSpeed(), MSCFModel::interactionGap(), MSCFModel_EIDM::interactionGap(), interactionGap(), MSCFModel_EIDM::internalsecuregap(), MSCFModel::maximumSafeFollowSpeed(), MSCFModel_EIDM::maximumSafeFollowSpeed(), MSCFModel::maximumSafeStopSpeed(), MSCFModel::minNextSpeed(), minNextSpeed(), MSCFModel_SmartSK::MSCFModel_SmartSK(), MSCFModel_Daniel1::setHeadwayTime(), MSCFModel_KraussOrig1::setHeadwayTime(), MSCFModel_SmartSK::setHeadwayTime(), MSCFModel::setMaxDecel(), MSCFModel_Daniel1::setMaxDecel(), MSCFModel_KraussOrig1::setMaxDecel(), MSCFModel_SmartSK::setMaxDecel(), MSCFModel_CC::setParameter(), MSCFModel::stopSpeed(), MSCFModel_PWag2009::stopSpeed(), and MSCFModel_KraussOrig1::vsafe().

◆ myDelta

const double MSCFModel_IDM::myDelta
private

The IDM delta exponent.

Definition at line 207 of file MSCFModel_IDM.h.

Referenced by _v(), and interactionGap().

◆ myEmergencyDecel

double MSCFModel::myEmergencyDecel
protectedinherited

The vehicle's maximum emergency deceleration [m/s^2].

Definition at line 703 of file MSCFModel.h.

Referenced by MSCFModel_Wiedemann::_v(), MSCFModel::calculateEmergencyDeceleration(), MSCFModel_Wiedemann::emergency(), MSCFModel::getEmergencyDecel(), MSCFModel::maximumSafeFollowSpeed(), MSCFModel_EIDM::maximumSafeFollowSpeed(), MSCFModel::maximumSafeStopSpeed(), MSCFModel::maximumSafeStopSpeedBallistic(), minNextSpeed(), MSCFModel::minNextSpeedEmergency(), and MSCFModel::setEmergencyDecel().

◆ myHeadwayTime

double MSCFModel::myHeadwayTime
protectedinherited

The driver's desired time headway (aka reaction time tau) [s].

Definition at line 710 of file MSCFModel.h.

Referenced by MSCFModel_EIDM::_v(), MSCFModel_ACC::_v(), _v(), MSCFModel_CACC::_v(), MSCFModel_ACC::accelGapControl(), MSCFModel::brakeGap(), MSCFModel_SmartSK::createVehicleVariables(), MSCFModel_PWag2009::followSpeed(), MSCFModel::getHeadwayTime(), MSCFModel_ACC::getSecureGap(), MSCFModel_CACC::getSecureGap(), getSecureGap(), MSCFModel::getSecureGap(), MSCFModel_EIDM::getSecureGap(), insertionFollowSpeed(), MSCFModel_EIDM::insertionStopSpeed(), MSCFModel::interactionGap(), MSCFModel_EIDM::internalsecuregap(), MSCFModel::maximumSafeFollowSpeed(), MSCFModel_EIDM::maximumSafeFollowSpeed(), MSCFModel::maximumSafeStopSpeedBallistic(), MSCFModel::maximumSafeStopSpeedEuler(), MSCFModel_W99::MSCFModel_W99(), MSCFModel_EIDM::patchSpeedBeforeLCEIDM(), MSCFModel::setHeadwayTime(), MSCFModel_CACC::setHeadwayTime(), MSCFModel_Daniel1::setHeadwayTime(), MSCFModel_KraussOrig1::setHeadwayTime(), MSCFModel_SmartSK::setHeadwayTime(), MSCFModel_Daniel1::setMaxDecel(), MSCFModel_KraussOrig1::setMaxDecel(), MSCFModel_SmartSK::setMaxDecel(), MSCFModel_CACC::speedGapControl(), MSCFModel_PWag2009::stopSpeed(), and MSCFModel_SmartSK::updateMyHeadway().

◆ myIDMM

const bool MSCFModel_IDM::myIDMM
private

whether the model is IDMM or IDM

Definition at line 204 of file MSCFModel_IDM.h.

Referenced by duplicate().

◆ myIterations

const int MSCFModel_IDM::myIterations
private

The number of iterations in speed calculations.

Definition at line 216 of file MSCFModel_IDM.h.

Referenced by _v().

◆ myStartupDelay

SUMOTime MSCFModel::myStartupDelay
protectedinherited

The startup delay after halting [s].

Definition at line 713 of file MSCFModel.h.

Referenced by MSCFModel::applyStartupDelay(), MSCFModel_EIDM::finalizeSpeed(), MSCFModel::getStartupDelay(), and MSCFModel_EIDM::slowToStartTerm().

◆ myTwoSqrtAccelDecel

const double MSCFModel_IDM::myTwoSqrtAccelDecel
private

A computational shortcut.

Definition at line 219 of file MSCFModel_IDM.h.

Referenced by _v(), getSecureGap(), and insertionFollowSpeed().

◆ myType

const MSVehicleType* MSCFModel::myType
protectedinherited

The type to which this model definition belongs to.

Definition at line 695 of file MSCFModel.h.

Referenced by MSCFModel_EIDM::_v(), _v(), MSCFModel_Wiedemann::_v(), MSCFModel_W99::computeThresholds(), MSCFModel::estimateSpeedAfterDistance(), MSCFModel_W99::followSpeed(), MSCFModel_Wiedemann::getSecureGap(), MSCFModel::insertionStopSpeed(), MSCFModel_EIDM::insertionStopSpeed(), MSCFModel::maxNextSpeed(), MSCFModel_KraussPS::maxNextSpeed(), and MSCFModel_EIDM::patchSpeedBeforeLCEIDM().

The documentation for this class was generated from the following files: