org.opentrafficsim.road.gtu.lane.perception.categories

Interface Estimation

public interface Estimation

Estimation of neighbor headway, speed and acceleration.

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 6 apr. 2018

Author:

Alexander Verbraeck, Peter Knoppers, Wouter Schakel

Field Summary

Fields

Modifier and Type	Field and Description
static Estimation	NONE No estimation errors.
static Estimation	UNDERESTIMATION Underestimation based on situational awareness.

Method Summary

Modifier and Type	Method and Description
Anticipation.NeighborTriplet	estimate(LaneBasedGTU perceivingGtu, LaneBasedGTU perceivedGtu, org.djunits.value.vdouble.scalar.Length distance, boolean downstream, org.djunits.value.vdouble.scalar.Time when) Estimate headway, speed and acceleration.

Field Detail

NONE

static final Estimation NONE

No estimation errors.

UNDERESTIMATION

static final Estimation UNDERESTIMATION

Underestimation based on situational awareness.

Method Detail

estimate

Anticipation.NeighborTriplet estimate(LaneBasedGTU perceivingGtu,
                                      LaneBasedGTU perceivedGtu,
                                      org.djunits.value.vdouble.scalar.Length distance,
                                      boolean downstream,
                                      org.djunits.value.vdouble.scalar.Time when)
                               throws org.opentrafficsim.base.parameters.ParameterException

Estimate headway, speed and acceleration.

Parameters:

perceivingGtu - LaneBasedGTU; perceiving GTU

perceivedGtu - LaneBasedGTU; perceived GTU

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

downstream - boolean; downstream (or upstream) neighbor

when - Time; moment of perception, reaction time included

Returns:

NeighborTriplet; perceived headway, speed and acceleration

Throws:

org.opentrafficsim.base.parameters.ParameterException - on invalid parameter value or if parameter is not available