Provides an interface to an error whose fluctuation is controlled via the driver's 'awareness', which can be controlled externally,. More...

#include <MSDriverState.h>

Collaboration diagram for MSSimpleDriverState:

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Public Member Functions
bool	debugLocked () const

void	lockDebug ()

	MSSimpleDriverState (MSVehicle *veh)

void	unlockDebug ()

void	update ()
	Trigger updates for the errorProcess, assumed gaps, etc.

void	updateAssumedGaps ()
	Update the assumed gaps to the known objects according to the corresponding perceived speed differences.

virtual	~MSSimpleDriverState ()

Getter methods
double	getMinAwareness () const

double	getInitialAwareness () const

double	getErrorTimeScaleCoefficient () const

double	getErrorNoiseIntensityCoefficient () const

double	getErrorTimeScale () const

double	getErrorNoiseIntensity () const

double	getSpeedDifferenceErrorCoefficient () const

double	getHeadwayErrorCoefficient () const

double	getFreeSpeedErrorCoefficient () const

double	getSpeedDifferenceChangePerceptionThreshold () const

double	getHeadwayChangePerceptionThreshold () const

double	getAwareness () const

double	getMaximalReactionTime () const

double	getOriginalReactionTime () const

double	getActionStepLength () const

double	getErrorState () const

Setter methods
void	setMinAwareness (const double value)

void	setInitialAwareness (const double value)

void	setErrorTimeScaleCoefficient (const double value)

void	setErrorNoiseIntensityCoefficient (const double value)

void	setSpeedDifferenceErrorCoefficient (const double value)

void	setHeadwayErrorCoefficient (const double value)

void	setFreeSpeedErrorCoefficient (const double value)

void	setSpeedDifferenceChangePerceptionThreshold (const double value)

void	setHeadwayChangePerceptionThreshold (const double value)

void	setMaximalReactionTime (const double value)

void	setOriginalReactionTime (const double value)

void	setAwareness (const double value)

void	setErrorState (const double state)

void	setErrorTimeScale (const double value)

void	setErrorNoiseIntensity (const double value)

Methods to obtain the current error quantities to be used by the car-following model
See also TCIModel
double	getPerceivedOwnSpeed (double speed)
	apply perception error to own speed

double	getPerceivedSpeedDifference (const double trueSpeedDifference, const double trueGap, const void *objID=nullptr)
	This method checks whether the errorneous speed difference that would be perceived for this step differs sufficiently from the previously perceived to be actually perceived. If so, it sets the flag myReactionFlag[objID]=true, which should be checked just after the call to this method because it will be overwritten by subsequent calls.

double	getPerceivedHeadway (const double trueGap, const void *objID=nullptr)

Private Member Functions
void	updateError ()

void	updateReactionTime ()

void	updateStepDuration ()

Private Attributes
double	myActionStepLength
	Action step length (~current maximal reaction time) induced by awareness level.

double	myAwareness
	Driver's 'awareness' \in [0,1].

bool	myDebugLock
	Used to prevent infinite loops in debugging outputs,.

OUProcess	myError
	Driver's 'error',.

double	myErrorNoiseIntensityCoefficient
	Coefficient controlling the impact of awareness on the noise intensity of the error process.

double	myErrorTimeScaleCoefficient
	Coefficient controlling the impact of awareness on the time scale of the error process.

double	myFreeSpeedErrorCoefficient

double	myHeadwayChangePerceptionThreshold
	Thresholds above a change in the corresponding quantity is perceived.

double	myHeadwayErrorCoefficient

double	myInitialAwareness
	Initial value for 'awareness' \in [0,1].

double	myMaximalReactionTime
	Maximal reaction time (value set for the actionStepLength at awareness=myMinAwareness)

double	myMinAwareness
	Minimal value for 'awareness' \in [0,1].

double	myOriginalReactionTime
	Maximal reaction time (value set for the actionStepLength at awareness=1)

double	mySpeedDifferenceChangePerceptionThreshold

double	mySpeedDifferenceErrorCoefficient
	Scaling coefficients for the magnitude of errors.

MSVehicle *	myVehicle
	Vehicle corresponding to this driver state.

Variables for tracking update instants
Elapsed time since the last state update See also updateStepDuration()
double	myStepDuration

double	myLastUpdateTime
	Time point of the last state update.

std::map< const void *, double >	myAssumedGap
	The assumed gaps to different objects.

std::map< const void *, double >	myLastPerceivedSpeedDifference
	The last perceived speed differences to the corresponding objects.

Detailed Description

Provides an interface to an error whose fluctuation is controlled via the driver's 'awareness', which can be controlled externally,.

See also: MSDevice_ToC

Definition at line 103 of file MSDriverState.h.

Constructor & Destructor Documentation

◆ MSSimpleDriverState()

MSSimpleDriverState::MSSimpleDriverState ( MSVehicle * veh )

Definition at line 127 of file MSDriverState.cpp.

References Named::getID(), updateError(), and updateReactionTime().

◆ ~MSSimpleDriverState()

virtual MSSimpleDriverState::~MSSimpleDriverState ( )

inlinevirtual

Definition at line 107 of file MSDriverState.h.

Member Function Documentation

◆ debugLocked()

bool MSSimpleDriverState::debugLocked ( ) const

inline

Definition at line 277 of file MSDriverState.h.

References myDebugLock.

Referenced by getPerceivedHeadway(), and getPerceivedSpeedDifference().

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◆ getActionStepLength()

double MSSimpleDriverState::getActionStepLength ( ) const

inline

Definition at line 168 of file MSDriverState.h.

References myActionStepLength.

◆ getAwareness()

double MSSimpleDriverState::getAwareness ( ) const

inline

Definition at line 156 of file MSDriverState.h.

References myAwareness.

◆ getErrorNoiseIntensity()

double MSSimpleDriverState::getErrorNoiseIntensity ( ) const

inline

Definition at line 132 of file MSDriverState.h.

References OUProcess::getNoiseIntensity(), and myError.

◆ getErrorNoiseIntensityCoefficient()

double MSSimpleDriverState::getErrorNoiseIntensityCoefficient ( ) const

inline

Definition at line 124 of file MSDriverState.h.

References myErrorNoiseIntensityCoefficient.

◆ getErrorState()

double MSSimpleDriverState::getErrorState ( ) const

inline

Definition at line 172 of file MSDriverState.h.

References OUProcess::getState(), and myError.

◆ getErrorTimeScale()

double MSSimpleDriverState::getErrorTimeScale ( ) const

inline

Definition at line 128 of file MSDriverState.h.

References OUProcess::getTimeScale(), and myError.

◆ getErrorTimeScaleCoefficient()

double MSSimpleDriverState::getErrorTimeScaleCoefficient ( ) const

inline

Definition at line 120 of file MSDriverState.h.

References myErrorTimeScaleCoefficient.

◆ getFreeSpeedErrorCoefficient()

double MSSimpleDriverState::getFreeSpeedErrorCoefficient ( ) const

inline

Definition at line 144 of file MSDriverState.h.

References myFreeSpeedErrorCoefficient.

◆ getHeadwayChangePerceptionThreshold()

double MSSimpleDriverState::getHeadwayChangePerceptionThreshold ( ) const

inline

Definition at line 152 of file MSDriverState.h.

References myHeadwayChangePerceptionThreshold.

◆ getHeadwayErrorCoefficient()

double MSSimpleDriverState::getHeadwayErrorCoefficient ( ) const

inline

Definition at line 140 of file MSDriverState.h.

References myHeadwayErrorCoefficient.

◆ getInitialAwareness()

double MSSimpleDriverState::getInitialAwareness ( ) const

inline

Definition at line 116 of file MSDriverState.h.

References myInitialAwareness.

◆ getMaximalReactionTime()

double MSSimpleDriverState::getMaximalReactionTime ( ) const

inline

Definition at line 160 of file MSDriverState.h.

References myMaximalReactionTime.

◆ getMinAwareness()

double MSSimpleDriverState::getMinAwareness ( ) const

inline

Definition at line 112 of file MSDriverState.h.

References myMinAwareness.

◆ getOriginalReactionTime()

double MSSimpleDriverState::getOriginalReactionTime ( ) const

inline

Definition at line 164 of file MSDriverState.h.

References myOriginalReactionTime.

◆ getPerceivedHeadway()

double MSSimpleDriverState::getPerceivedHeadway	(	const double	trueGap,
		const void *	objID = `nullptr`
	)

See also: myHeadwayPerceptionError

Definition at line 230 of file MSDriverState.cpp.

References DEBUG_COND, debugLocked(), Named::getID(), OUProcess::getState(), myAssumedGap, myAwareness, myError, myHeadwayChangePerceptionThreshold, myHeadwayErrorCoefficient, myVehicle, SIMTIME, and toString().

◆ getPerceivedOwnSpeed()

double MSSimpleDriverState::getPerceivedOwnSpeed ( double speed )

apply perception error to own speed

Definition at line 224 of file MSDriverState.cpp.

References OUProcess::getState(), myError, and myFreeSpeedErrorCoefficient.

◆ getPerceivedSpeedDifference()

double MSSimpleDriverState::getPerceivedSpeedDifference	(	const double	trueSpeedDifference,
		const double	trueGap,
		const void *	objID = `nullptr`
	)

This method checks whether the errorneous speed difference that would be perceived for this step differs sufficiently from the previously perceived to be actually perceived. If so, it sets the flag myReactionFlag[objID]=true, which should be checked just after the call to this method because it will be overwritten by subsequent calls.

Definition at line 288 of file MSDriverState.cpp.

References DEBUG_COND, debugLocked(), Named::getID(), OUProcess::getState(), myAwareness, myError, myLastPerceivedSpeedDifference, mySpeedDifferenceChangePerceptionThreshold, mySpeedDifferenceErrorCoefficient, myVehicle, SIMTIME, and toString().

◆ getSpeedDifferenceChangePerceptionThreshold()

double MSSimpleDriverState::getSpeedDifferenceChangePerceptionThreshold ( ) const

inline

Definition at line 148 of file MSDriverState.h.

References mySpeedDifferenceChangePerceptionThreshold.

◆ getSpeedDifferenceErrorCoefficient()

double MSSimpleDriverState::getSpeedDifferenceErrorCoefficient ( ) const

inline

Definition at line 136 of file MSDriverState.h.

References mySpeedDifferenceErrorCoefficient.

◆ lockDebug()

void MSSimpleDriverState::lockDebug ( )

inline

Definition at line 269 of file MSDriverState.h.

References myDebugLock.

◆ setAwareness()

void MSSimpleDriverState::setAwareness ( const double value )

Definition at line 207 of file MSDriverState.cpp.

References DEBUG_COND, Named::getID(), MAX2(), myAwareness, myError, myMinAwareness, myVehicle, OUProcess::setState(), SIMTIME, and updateReactionTime().

◆ setErrorNoiseIntensity()

void MSSimpleDriverState::setErrorNoiseIntensity ( const double value )

inline

Definition at line 236 of file MSDriverState.h.

References myError, and OUProcess::setNoiseIntensity().

◆ setErrorNoiseIntensityCoefficient()

void MSSimpleDriverState::setErrorNoiseIntensityCoefficient ( const double value )

inline

Definition at line 192 of file MSDriverState.h.

References myErrorNoiseIntensityCoefficient.

◆ setErrorState()

void MSSimpleDriverState::setErrorState ( const double state )

inline

Definition at line 228 of file MSDriverState.h.

References myError, and OUProcess::setState().

◆ setErrorTimeScale()

void MSSimpleDriverState::setErrorTimeScale ( const double value )

inline

Definition at line 232 of file MSDriverState.h.

References myError, and OUProcess::setTimeScale().

◆ setErrorTimeScaleCoefficient()

void MSSimpleDriverState::setErrorTimeScaleCoefficient ( const double value )

inline

Definition at line 188 of file MSDriverState.h.

References myErrorTimeScaleCoefficient.

◆ setFreeSpeedErrorCoefficient()

void MSSimpleDriverState::setFreeSpeedErrorCoefficient ( const double value )

inline

Definition at line 204 of file MSDriverState.h.

References myFreeSpeedErrorCoefficient.

◆ setHeadwayChangePerceptionThreshold()

void MSSimpleDriverState::setHeadwayChangePerceptionThreshold ( const double value )

inline

Definition at line 212 of file MSDriverState.h.

References myHeadwayChangePerceptionThreshold.

◆ setHeadwayErrorCoefficient()

void MSSimpleDriverState::setHeadwayErrorCoefficient ( const double value )

inline

Definition at line 200 of file MSDriverState.h.

References myHeadwayErrorCoefficient.

◆ setInitialAwareness()

void MSSimpleDriverState::setInitialAwareness ( const double value )

inline

Definition at line 184 of file MSDriverState.h.

References myInitialAwareness.

◆ setMaximalReactionTime()

void MSSimpleDriverState::setMaximalReactionTime ( const double value )

inline

Definition at line 216 of file MSDriverState.h.

References myMaximalReactionTime, and updateReactionTime().

◆ setMinAwareness()

void MSSimpleDriverState::setMinAwareness ( const double value )

inline

Definition at line 180 of file MSDriverState.h.

References myMinAwareness.

◆ setOriginalReactionTime()

void MSSimpleDriverState::setOriginalReactionTime ( const double value )

inline

Definition at line 221 of file MSDriverState.h.

References myOriginalReactionTime, and updateReactionTime().

◆ setSpeedDifferenceChangePerceptionThreshold()

void MSSimpleDriverState::setSpeedDifferenceChangePerceptionThreshold ( const double value )

inline

Definition at line 208 of file MSDriverState.h.

References mySpeedDifferenceChangePerceptionThreshold.

◆ setSpeedDifferenceErrorCoefficient()

void MSSimpleDriverState::setSpeedDifferenceErrorCoefficient ( const double value )

inline

Definition at line 196 of file MSDriverState.h.

References mySpeedDifferenceErrorCoefficient.

◆ unlockDebug()

void MSSimpleDriverState::unlockDebug ( )

inline

Definition at line 273 of file MSDriverState.h.

References myDebugLock.

◆ update()

void MSSimpleDriverState::update ( )

Trigger updates for the errorProcess, assumed gaps, etc.

Definition at line 154 of file MSDriverState.cpp.

References DEBUG_COND, Named::getID(), OUProcess::getState(), myError, myStepDuration, myVehicle, SIMTIME, updateAssumedGaps(), updateError(), updateReactionTime(), and updateStepDuration().

◆ updateAssumedGaps()

void MSSimpleDriverState::updateAssumedGaps ( )

Update the assumed gaps to the known objects according to the corresponding perceived speed differences.

Definition at line 271 of file MSDriverState.cpp.

References MSVehicle::getSpeed(), myAssumedGap, myLastPerceivedSpeedDifference, myVehicle, and SPEED2DIST.

Referenced by update().

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◆ updateError()

void MSSimpleDriverState::updateError ( )

private

Definition at line 182 of file MSDriverState.cpp.

References myAwareness, myError, myErrorNoiseIntensityCoefficient, myErrorTimeScaleCoefficient, myStepDuration, OUProcess::setNoiseIntensity(), OUProcess::setState(), OUProcess::setTimeScale(), and OUProcess::step().

Referenced by MSSimpleDriverState(), and update().

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◆ updateReactionTime()

void MSSimpleDriverState::updateReactionTime ( )

private

Definition at line 193 of file MSDriverState.cpp.

References MAX2(), myActionStepLength, myAwareness, myMaximalReactionTime, myMinAwareness, myOriginalReactionTime, and TS.

Referenced by MSSimpleDriverState(), setAwareness(), setMaximalReactionTime(), setOriginalReactionTime(), and update().

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◆ updateStepDuration()

void MSSimpleDriverState::updateStepDuration ( )

private

Definition at line 176 of file MSDriverState.cpp.

References myLastUpdateTime, myStepDuration, and SIMTIME.

Referenced by update().

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Field Documentation

◆ myActionStepLength

double MSSimpleDriverState::myActionStepLength

private

Action step length (~current maximal reaction time) induced by awareness level.

Note: This interpolates linearly from myOriginalReactionTime for awareness==1 to myMaximalReactionTime for awareness==myMinAwareness

Definition at line 322 of file MSDriverState.h.

Referenced by getActionStepLength(), and updateReactionTime().

◆ myAssumedGap

std::map<const void*, double> MSSimpleDriverState::myAssumedGap

private

The assumed gaps to different objects.

Todo:: : update each step to incorporate the assumed change given a specific speed difference

Definition at line 339 of file MSDriverState.h.

Referenced by getPerceivedHeadway(), and updateAssumedGaps().

◆ myAwareness

double MSSimpleDriverState::myAwareness

private

Driver's 'awareness' \in [0,1].

Definition at line 295 of file MSDriverState.h.

Referenced by getAwareness(), getPerceivedHeadway(), getPerceivedSpeedDifference(), setAwareness(), updateError(), and updateReactionTime().

◆ myDebugLock

bool MSSimpleDriverState::myDebugLock

private

Used to prevent infinite loops in debugging outputs,.

See also: followSpeed() and stopSpeed() (of MSCFModel_Krauss, e.g.)

Definition at line 345 of file MSDriverState.h.

Referenced by debugLocked(), lockDebug(), and unlockDebug().

◆ myError

OUProcess MSSimpleDriverState::myError

private

Driver's 'error',.

See also: TCI_Model

Definition at line 301 of file MSDriverState.h.

Referenced by getErrorNoiseIntensity(), getErrorState(), getErrorTimeScale(), getPerceivedHeadway(), getPerceivedOwnSpeed(), getPerceivedSpeedDifference(), setAwareness(), setErrorNoiseIntensity(), setErrorState(), setErrorTimeScale(), update(), and updateError().

◆ myErrorNoiseIntensityCoefficient

double MSSimpleDriverState::myErrorNoiseIntensityCoefficient

private

Coefficient controlling the impact of awareness on the noise intensity of the error process.

Definition at line 305 of file MSDriverState.h.

Referenced by getErrorNoiseIntensityCoefficient(), setErrorNoiseIntensityCoefficient(), and updateError().

◆ myErrorTimeScaleCoefficient

double MSSimpleDriverState::myErrorTimeScaleCoefficient

private

Coefficient controlling the impact of awareness on the time scale of the error process.

Definition at line 303 of file MSDriverState.h.

Referenced by getErrorTimeScaleCoefficient(), setErrorTimeScaleCoefficient(), and updateError().

◆ myFreeSpeedErrorCoefficient

double MSSimpleDriverState::myFreeSpeedErrorCoefficient

private

Definition at line 310 of file MSDriverState.h.

Referenced by getFreeSpeedErrorCoefficient(), getPerceivedOwnSpeed(), and setFreeSpeedErrorCoefficient().

◆ myHeadwayChangePerceptionThreshold

double MSSimpleDriverState::myHeadwayChangePerceptionThreshold

private

Thresholds above a change in the corresponding quantity is perceived.

Note: In the comparison, we multiply the actual change amount by the current gap to the object to reflect a more precise perception if the object is closer.

Definition at line 314 of file MSDriverState.h.

Referenced by getHeadwayChangePerceptionThreshold(), getPerceivedHeadway(), and setHeadwayChangePerceptionThreshold().

◆ myHeadwayErrorCoefficient

double MSSimpleDriverState::myHeadwayErrorCoefficient

private

Definition at line 309 of file MSDriverState.h.

Referenced by getHeadwayErrorCoefficient(), getPerceivedHeadway(), and setHeadwayErrorCoefficient().

◆ myInitialAwareness

double MSSimpleDriverState::myInitialAwareness

private

Initial value for 'awareness' \in [0,1].

Definition at line 299 of file MSDriverState.h.

Referenced by getInitialAwareness(), and setInitialAwareness().

◆ myLastPerceivedSpeedDifference

std::map<const void*, double> MSSimpleDriverState::myLastPerceivedSpeedDifference

private

The last perceived speed differences to the corresponding objects.

Definition at line 341 of file MSDriverState.h.

Referenced by getPerceivedSpeedDifference(), and updateAssumedGaps().

◆ myLastUpdateTime

double MSSimpleDriverState::myLastUpdateTime

private

Time point of the last state update.

Definition at line 334 of file MSDriverState.h.

Referenced by updateStepDuration().

◆ myMaximalReactionTime

double MSSimpleDriverState::myMaximalReactionTime

private

Maximal reaction time (value set for the actionStepLength at awareness=myMinAwareness)

Definition at line 326 of file MSDriverState.h.

Referenced by getMaximalReactionTime(), setMaximalReactionTime(), and updateReactionTime().

◆ myMinAwareness

double MSSimpleDriverState::myMinAwareness

private

Minimal value for 'awareness' \in [0,1].

Definition at line 297 of file MSDriverState.h.

Referenced by getMinAwareness(), setAwareness(), setMinAwareness(), and updateReactionTime().

◆ myOriginalReactionTime

double MSSimpleDriverState::myOriginalReactionTime

private

Maximal reaction time (value set for the actionStepLength at awareness=1)

Definition at line 324 of file MSDriverState.h.

Referenced by getOriginalReactionTime(), setOriginalReactionTime(), and updateReactionTime().

◆ mySpeedDifferenceChangePerceptionThreshold

double MSSimpleDriverState::mySpeedDifferenceChangePerceptionThreshold

private

Definition at line 315 of file MSDriverState.h.

Referenced by getPerceivedSpeedDifference(), getSpeedDifferenceChangePerceptionThreshold(), and setSpeedDifferenceChangePerceptionThreshold().

◆ mySpeedDifferenceErrorCoefficient

double MSSimpleDriverState::mySpeedDifferenceErrorCoefficient

private

Scaling coefficients for the magnitude of errors.

Definition at line 308 of file MSDriverState.h.

Referenced by getPerceivedSpeedDifference(), getSpeedDifferenceErrorCoefficient(), and setSpeedDifferenceErrorCoefficient().

◆ myStepDuration

double MSSimpleDriverState::myStepDuration

private

Definition at line 332 of file MSDriverState.h.

Referenced by update(), updateError(), and updateStepDuration().

◆ myVehicle

MSVehicle* MSSimpleDriverState::myVehicle

private

Vehicle corresponding to this driver state.

Definition at line 292 of file MSDriverState.h.

Referenced by getPerceivedHeadway(), getPerceivedSpeedDifference(), setAwareness(), update(), and updateAssumedGaps().

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

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ MSSimpleDriverState()

◆ ~MSSimpleDriverState()

Member Function Documentation

◆ debugLocked()

◆ getActionStepLength()

◆ getAwareness()

◆ getErrorNoiseIntensity()

◆ getErrorNoiseIntensityCoefficient()

◆ getErrorState()

◆ getErrorTimeScale()

◆ getErrorTimeScaleCoefficient()

◆ getFreeSpeedErrorCoefficient()

◆ getHeadwayChangePerceptionThreshold()

◆ getHeadwayErrorCoefficient()

◆ getInitialAwareness()

◆ getMaximalReactionTime()

◆ getMinAwareness()

◆ getOriginalReactionTime()

◆ getPerceivedHeadway()

◆ getPerceivedOwnSpeed()

◆ getPerceivedSpeedDifference()

◆ getSpeedDifferenceChangePerceptionThreshold()

◆ getSpeedDifferenceErrorCoefficient()

◆ lockDebug()

◆ setAwareness()

◆ setErrorNoiseIntensity()

◆ setErrorNoiseIntensityCoefficient()

◆ setErrorState()

◆ setErrorTimeScale()

◆ setErrorTimeScaleCoefficient()

◆ setFreeSpeedErrorCoefficient()

◆ setHeadwayChangePerceptionThreshold()

◆ setHeadwayErrorCoefficient()

◆ setInitialAwareness()

◆ setMaximalReactionTime()

◆ setMinAwareness()

◆ setOriginalReactionTime()

◆ setSpeedDifferenceChangePerceptionThreshold()

◆ setSpeedDifferenceErrorCoefficient()

◆ unlockDebug()

◆ update()

◆ updateAssumedGaps()

◆ updateError()

◆ updateReactionTime()

◆ updateStepDuration()

Field Documentation

◆ myActionStepLength

◆ myAssumedGap

◆ myAwareness

◆ myDebugLock

◆ myError

◆ myErrorNoiseIntensityCoefficient

◆ myErrorTimeScaleCoefficient

◆ myFreeSpeedErrorCoefficient

◆ myHeadwayChangePerceptionThreshold

◆ myHeadwayErrorCoefficient

◆ myInitialAwareness

◆ myLastPerceivedSpeedDifference

◆ myLastUpdateTime

◆ myMaximalReactionTime

◆ myMinAwareness

◆ myOriginalReactionTime

◆ mySpeedDifferenceChangePerceptionThreshold

◆ mySpeedDifferenceErrorCoefficient

◆ myStepDuration

◆ myVehicle