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

Class IDM

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.IDM

All Implemented Interfaces:

CarFollowingModel

public class IDM
extends AbstractIDM

Implementation of the IDM. See https://en.wikipedia.org/wiki/Intelligent_driver_model

Copyright (c) 2013-2017 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

DELTA

Constructor Summary

Constructors

Constructor and Description
IDM()

Method Summary

Modifier and Type	Method and Description
protected org.djunits.value.vdouble.scalar.Acceleration	combineInteractionTerm(org.djunits.value.vdouble.scalar.Acceleration aFree, org.opentrafficsim.core.gtu.behavioralcharacteristics.BehavioralCharacteristics behavioralCharacteristics, org.djunits.value.vdouble.scalar.Speed speed, org.djunits.value.vdouble.scalar.Speed desiredSpeed, org.djunits.value.vdouble.scalar.Length desiredHeadway, SortedMap<org.djunits.value.vdouble.scalar.Length,org.djunits.value.vdouble.scalar.Speed> 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

desiredHeadway, desiredSpeed, dynamicDesiredHeadway, dynamicHeadwayTerm, followingAcceleration

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

followingAcceleration, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IDM

public IDM()

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 org.djunits.value.vdouble.scalar.Acceleration combineInteractionTerm(org.djunits.value.vdouble.scalar.Acceleration aFree,
                                                                                     org.opentrafficsim.core.gtu.behavioralcharacteristics.BehavioralCharacteristics behavioralCharacteristics,
                                                                                     org.djunits.value.vdouble.scalar.Speed speed,
                                                                                     org.djunits.value.vdouble.scalar.Speed desiredSpeed,
                                                                                     org.djunits.value.vdouble.scalar.Length desiredHeadway,
                                                                                     SortedMap<org.djunits.value.vdouble.scalar.Length,org.djunits.value.vdouble.scalar.Speed> leaders)
                                                                              throws org.opentrafficsim.core.gtu.behavioralcharacteristics.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.

behavioralCharacteristics - Behavioral characteristics.

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:

org.opentrafficsim.core.gtu.behavioralcharacteristics.ParameterException - In case of parameter exception.