Class SpeedLimitUtil
- java.lang.Object
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- org.opentrafficsim.road.gtu.lane.tactical.util.SpeedLimitUtil
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public final class SpeedLimitUtil extends Object
Static methods regarding speed limits for composition in tactical planners.Copyright (c) 2013-2022 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 May 20, 2016
- Author:
- Alexander Verbraeck, Peter Knoppers, Wouter Schakel
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Field Summary
Fields Modifier and Type Field Description static org.opentrafficsim.base.parameters.ParameterTypeAcceleration
A_LAT
Maximum comfortable acceleration in the lateral direction.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static Acceleration
considerSpeedLimitTransitions(org.opentrafficsim.base.parameters.Parameters parameters, Speed speed, SpeedLimitProspect speedLimitProspect, CarFollowingModel carFollowingModel)
Acceleration for speed limit transitions.static Speed
getLegalSpeedLimit(SpeedLimitInfo speedLimitInfo)
Returns the minimum speed of the applicable speed limit types MAX_LEGAL_VEHICLE_SPEED, ROAD_CLASS, FIXED_SIGN and DYNAMIC_SIGN.static Speed
getMaximumVehicleSpeed(SpeedLimitInfo speedLimitInfo)
Returns the speed of speed limit type MAX_VEHICLE_SPEED.
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Method Detail
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getLegalSpeedLimit
public static Speed getLegalSpeedLimit(SpeedLimitInfo speedLimitInfo)
Returns the minimum speed of the applicable speed limit types MAX_LEGAL_VEHICLE_SPEED, ROAD_CLASS, FIXED_SIGN and DYNAMIC_SIGN. ROAD_CLASS is only used if FIXED_SIGN and DYNAMIC_SIGN are not present. This method may be overridden by subclasses to implement additional behavior regarding legal speed limits.- Parameters:
speedLimitInfo
- SpeedLimitInfo; speed limit info- Returns:
- minimum of speed of speed limit types
- Throws:
NullPointerException
- if speed limit info is null
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getMaximumVehicleSpeed
public static Speed getMaximumVehicleSpeed(SpeedLimitInfo speedLimitInfo)
Returns the speed of speed limit type MAX_VEHICLE_SPEED. This method may be overridden by subclasses to implement additional behavior regarding maximum vehicle speed limits.- Parameters:
speedLimitInfo
- SpeedLimitInfo; speed limit info- Returns:
- speed of speed limit type MAX_VEHICLE_SPEED
- Throws:
NullPointerException
- if speed limit info is null
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considerSpeedLimitTransitions
public static Acceleration considerSpeedLimitTransitions(org.opentrafficsim.base.parameters.Parameters parameters, Speed speed, SpeedLimitProspect speedLimitProspect, CarFollowingModel carFollowingModel) throws org.opentrafficsim.base.parameters.ParameterException
Acceleration for speed limit transitions. This implementation decelerates before curves and speed bumps. For this it usesapproachTargetSpeed()
of the abstract car-following model implementation. All remaining transitions happen in the default manner, i.e. deceleration and acceleration after the speed limit change and governed by the car-following model.- Parameters:
parameters
- Parameters; parametersspeed
- Speed; current speedspeedLimitProspect
- SpeedLimitProspect; speed limit prospectcarFollowingModel
- CarFollowingModel; car following model- Returns:
- acceleration for speed limit transitions
- Throws:
org.opentrafficsim.base.parameters.ParameterException
- if a required parameter is not found
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