Package org.opentrafficsim.road.gtu.perception.mental

Class FactorEstimation

java.lang.Object

org.opentrafficsim.road.gtu.perception.mental.FactorEstimation

All Implemented Interfaces:

Supplier<FactorEstimation>, NamedConstants, Stateless<FactorEstimation>, Estimation

public final class FactorEstimation
extends Object
implements Estimation, Stateless<FactorEstimation>

Estimation using EST_FACTOR as set by the Fuller implementation.

Copyright (c) 2024-2026 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

Author:

Wouter Schakel

Field Summary

Fields

Modifier and Type	Field	Description
static final ParameterTypeDouble	EST_FACTOR	Erroneous estimation factor on distance and speed difference.
static final FactorEstimation	SINGLETON	Estimation based on a factor determined by Fuller.

Fields inherited from interface org.opentrafficsim.road.gtu.perception.categories.neighbors.Estimation

NONE

Method Summary

Modifier and Type	Method	Description
NeighborTriplet	estimate(LaneBasedGtu perceivingGtu, LaneBasedObject reference, LaneBasedGtu perceivedGtu, org.djunits.value.vdouble.scalar.Length distance, boolean downstream, org.djunits.value.vdouble.scalar.Duration when)	Estimate headway, speed and acceleration.
FactorEstimation	get()
String	name()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opentrafficsim.road.gtu.perception.categories.neighbors.Estimation

getDelayedDistance, getDelayedReferenceSpeed, getDelayedSpeedDifference

Field Details

EST_FACTOR

public static final ParameterTypeDouble EST_FACTOR

Erroneous estimation factor on distance and speed difference.

SINGLETON

public static final FactorEstimation SINGLETON

Estimation based on a factor determined by Fuller.

Method Details

estimate

public NeighborTriplet estimate(LaneBasedGtu perceivingGtu,
 LaneBasedObject reference,
 LaneBasedGtu perceivedGtu,
 org.djunits.value.vdouble.scalar.Length distance,
 boolean downstream,
 org.djunits.value.vdouble.scalar.Duration when)
                         throws ParameterException

Description copied from interface: Estimation

Estimate headway, speed and acceleration.

Specified by:

estimate in interface Estimation

Parameters:

perceivingGtu - perceiving GTU

reference - reference object, e.g. the perceiving GTU, or a Conflict

perceivedGtu - perceived GTU

distance - actual headway at 'now' (i.e. not at 'when' if there is a reaction time)

downstream - downstream (or upstream) neighbor

when - moment of perception, reaction time included

Returns:

perceived headway, speed and acceleration

Throws:

ParameterException - on invalid parameter value or if parameter is not available

get

public FactorEstimation get()

Specified by:

get in interface Stateless<FactorEstimation>

Specified by:

get in interface Supplier<FactorEstimation>

name

public String name()

Specified by:

name in interface NamedConstants