org.opentrafficsim.road.gtu.lane.tactical.following

Class IDMPlus

java.lang.Object

org.opentrafficsim.road.gtu.lane.tactical.following.AbstractCarFollowingModel

org.opentrafficsim.road.gtu.lane.tactical.following.AbstractIDM

org.opentrafficsim.road.gtu.lane.tactical.following.IDMPlus

All Implemented Interfaces:

CarFollowingModel, DesiredHeadwayModel, DesiredSpeedModel, Initialisable

public class IDMPlus
extends AbstractIDM

Implementation of the IDM+. See Schakel, W.J., Knoop, V.L., and Van Arem, B. (2012), LMRS: Integrated Lane Change Model with Relaxation and Synchronization, Transportation Research Records: Journal of the Transportation Research Board, No. 2316, pp. 47-57. Note in the official versions of TRB and TRR some errors appeared due to the typesetting of the papers (not in the preprint provided here). A list of errata for the official versions is found here.

Copyright (c) 2013-2018 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

$LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $, initial version 5 apr. 2016

Author:

Wouter Schakel

Field Summary

Fields inherited from class org.opentrafficsim.road.gtu.lane.tactical.following.AbstractIDM

A, B, B0, DELTA, DESIRED_SPEED, FSPEED, HEADWAY, S0, T

Fields inherited from interface org.opentrafficsim.road.gtu.lane.tactical.following.CarFollowingModel

CAR_FOLLOWING_MODEL

Constructor Summary

Constructors

Constructor and Description
IDMPlus() Default constructor using default models for desired headway and desired speed.
IDMPlus(DesiredHeadwayModel desiredHeadwayModel, DesiredSpeedModel desiredSpeedModel) Constructor with modular models for desired headway and desired speed.

Method Summary

Modifier and Type	Method and Description
protected Acceleration	combineInteractionTerm(Acceleration aFree, Parameters parameters, Speed speed, Speed desiredSpeed, Length desiredHeadway, PerceptionIterable<? extends Headway> leaders) Combines an interaction term with the free term.
String	getLongName() Return the complete name of the car-following model.
String	getName() Return the name of the car-following model.

Methods inherited from class org.opentrafficsim.road.gtu.lane.tactical.following.AbstractIDM

dynamicDesiredHeadway, dynamicHeadwayTerm, followingAcceleration

Methods inherited from class org.opentrafficsim.road.gtu.lane.tactical.following.AbstractCarFollowingModel

desiredHeadway, desiredSpeed, followingAcceleration, init, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IDMPlus

public IDMPlus()

Default constructor using default models for desired headway and desired speed.

IDMPlus

public IDMPlus(DesiredHeadwayModel desiredHeadwayModel,
               DesiredSpeedModel desiredSpeedModel)

Constructor with modular models for desired headway and desired speed.

Parameters:

desiredHeadwayModel - desired headway model

desiredSpeedModel - desired speed model

Method Detail

getName

public final String getName()

Return the name of the car-following model.

Returns:

name of the car-following model

getLongName

public final String getLongName()

Return the complete name of the car-following model.

Returns:

complete name of the car-following model

combineInteractionTerm

protected final Acceleration combineInteractionTerm(Acceleration aFree,
                                                    Parameters parameters,
                                                    Speed speed,
                                                    Speed desiredSpeed,
                                                    Length desiredHeadway,
                                                    PerceptionIterable<? extends Headway> leaders)
                                             throws ParameterException

Combines an interaction term with the free term. There should be at least 1 leader for this method.

Specified by:

combineInteractionTerm in class AbstractIDM

Parameters:

aFree - Free term of acceleration.

parameters - Parameters.

speed - Current speed.

desiredSpeed - Desired speed.

desiredHeadway - Desired headway.

leaders - Set of leader headways (guaranteed positive) and speeds, ordered by headway (closest first).

Returns:

Combination of terms into a single acceleration.

Throws:

ParameterException - In case of parameter exception.