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

Interface Tailgating

public interface Tailgating

Interface for LMRS tailgating behavior.

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.

Version:

$Revision$, $LastChangedDate$, by $Author$, initial version 7 mrt. 2018

Author:

Alexander Verbraeck, Peter Knoppers, Wouter Schakel

Field Summary

Fields

Modifier and Type	Field and Description
static Tailgating	NONE No tailgating.
static Tailgating	PRESSURE Tailgating based on speed pressure.
static org.opentrafficsim.base.parameters.ParameterTypeDouble	RHO Social pressure applied to the leader.
static Tailgating	RHO_ONLY No tailgating, but social pressure exists.

Method Summary

Modifier and Type	Method and Description
static double	socialPressure(org.djunits.value.vdouble.scalar.Speed speed, org.djunits.value.vdouble.scalar.Speed vCong, org.djunits.value.vdouble.scalar.Speed desiredSpeed, org.djunits.value.vdouble.scalar.Speed leaderSpeed, org.djunits.value.vdouble.scalar.Speed vGain, org.djunits.value.vdouble.scalar.Length headway, org.djunits.value.vdouble.scalar.Length x0) Returns a normalized social pressure, equal to (vDesired - vLead) / vGain.
void	tailgate(LanePerception perception, org.opentrafficsim.base.parameters.Parameters parameters) Apply tailgating.

Field Detail

RHO

static final org.opentrafficsim.base.parameters.ParameterTypeDouble RHO

Social pressure applied to the leader.

NONE

static final Tailgating NONE

No tailgating.

RHO_ONLY

static final Tailgating RHO_ONLY

No tailgating, but social pressure exists.

PRESSURE

static final Tailgating PRESSURE

Tailgating based on speed pressure.

Method Detail

socialPressure

static double socialPressure(org.djunits.value.vdouble.scalar.Speed speed,
                             org.djunits.value.vdouble.scalar.Speed vCong,
                             org.djunits.value.vdouble.scalar.Speed desiredSpeed,
                             org.djunits.value.vdouble.scalar.Speed leaderSpeed,
                             org.djunits.value.vdouble.scalar.Speed vGain,
                             org.djunits.value.vdouble.scalar.Length headway,
                             org.djunits.value.vdouble.scalar.Length x0)

Returns a normalized social pressure, equal to (vDesired - vLead) / vGain.

Parameters:

speed - Speed; speed

vCong - Speed; speed indicating congestion

desiredSpeed - Speed; desired speed

leaderSpeed - Speed; leader speed

vGain - Speed; vGain parameter

headway - Length; headway to the leader

x0 - Length; anticipation distance

Returns:

normalized social pressure

tailgate

void tailgate(LanePerception perception,
              org.opentrafficsim.base.parameters.Parameters parameters)

Apply tailgating.

Parameters:

perception - LanePerception; perception

parameters - Parameters; parameters