Package org.opentrafficsim.road.gtu.lane.tactical.lmrs

Class IncentiveSpeedWithCourtesy

java.lang.Object

org.opentrafficsim.road.gtu.lane.tactical.lmrs.IncentiveSpeedWithCourtesy

All Implemented Interfaces:

Incentive, VoluntaryIncentive

public class IncentiveSpeedWithCourtesy
extends Object
implements VoluntaryIncentive

Determines lane change desire for speed. The anticipation speed in the current and adjacent lanes are compared. The larger the difference, the larger the lane change desire. For negative differences, negative desire results. Anticipation speed involves the most critical vehicle considered to be in a lane. Vehicles are more critical if their speed is lower, and if they are closer. The set of vehicles considered to be on a lane includes drivers on adjacent lanes of the considered lane, with a lane change desire towards the considered lane above a certain threshold. If such vehicles have low speeds (i.e. vehicle accelerating to merge), this may result in a courtesy lane change, or in not changing lane out of courtesy from the 2nd lane of the mainline. Vehicles on the current lane of the driver, are not considered on adjacent lanes. This would maintain a large speed difference between the lanes where all drivers do not change lane as they consider leading vehicles to be on the adjacent lane, lowering the anticipation speed on the adjacent lane. The desire for speed is reduced as acceleration is larger, preventing over-assertive lane changes as acceleration out of congestion in the adjacent lane has progressed more.

Note: This incentive includes speed, and a form of courtesy. It should therefore not be combined with incentives solely for speed, or solely for courtesy.

Copyright (c) 2013-2020 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

Version:

$Revision$, $LastChangedDate$, by $Author$, initial version Apr 13, 2016

Author:

Wouter Schakel

Field Summary

Fields

Modifier and Type	Field	Description
protected static ParameterTypeAcceleration	A	Acceleration parameter type.
protected static ParameterTypeSpeed	VCONG	Speed threshold below which traffic is considered congested.
protected static ParameterTypeSpeed	VGAIN	Anticipation speed difference parameter type.

Constructor Summary

Constructors

Constructor	Description
IncentiveSpeedWithCourtesy()

Method Summary

Modifier and Type	Method	Description
Desire	determineDesire(Parameters parameters, LanePerception perception, CarFollowingModel carFollowingModel, Desire mandatoryDesire, Desire voluntaryDesire)	Determines level of lane change desire for a lane change incentive.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

A

protected static final ParameterTypeAcceleration A

Acceleration parameter type.

VGAIN

protected static final ParameterTypeSpeed VGAIN

Anticipation speed difference parameter type.

VCONG

protected static final ParameterTypeSpeed VCONG

Speed threshold below which traffic is considered congested.

Constructor Detail

IncentiveSpeedWithCourtesy

public IncentiveSpeedWithCourtesy()

Method Detail

determineDesire

public final Desire determineDesire(Parameters parameters,
                                    LanePerception perception,
                                    CarFollowingModel carFollowingModel,
                                    Desire mandatoryDesire,
                                    Desire voluntaryDesire)
                             throws ParameterException,
                                    OperationalPlanException

Determines level of lane change desire for a lane change incentive.

Specified by:

determineDesire in interface VoluntaryIncentive

Parameters:

parameters - Parameters; parameters

perception - LanePerception; perception

carFollowingModel - CarFollowingModel; car-following model

mandatoryDesire - Desire; level of mandatory desire at current time

voluntaryDesire - Desire; level of voluntary desire at current time, of voluntary incentives calculated before

Returns:

level of lane change desire for this incentive

Throws:

ParameterException - if a parameter is not given or out of bounds

OperationalPlanException - in case of a perception exception

toString

public final String toString()

Overrides:

toString in class Object