Package org.goplanit.assignment.ltm.sltm

Class StaticLtmPathStrategy

java.lang.Object

org.goplanit.assignment.ltm.sltm.StaticLtmAssignmentStrategy

org.goplanit.assignment.ltm.sltm.StaticLtmPathStrategy

public class StaticLtmPathStrategy
extends StaticLtmAssignmentStrategy

Implementation to deal with a path based sLTM implementation

Author:

markr

Constructor Summary

Constructors

Constructor	Description
StaticLtmPathStrategy(IdGroupingToken idGroupingToken, long assignmentId, TransportModelNetwork transportModelNetwork, StaticLtmSettings settings, TrafficAssignmentComponentAccessee taComponents)	Constructor

Method Summary

Modifier and Type	Method	Description
void	createInitialSolution(double[] initialLinkSegmentCosts)	create initial solution based on generating shortest paths
protected StaticLtmLoadingPath	createNetworkLoading()	create a path based network loading for this solution scheme
String	getDescription()	Description of the chosen sLTM strategy for equilibration
protected StaticLtmLoadingPath	getLoading()	The network loading to apply
boolean	performIteration(Mode theMode, double[] costsToUpdate, int iterationIndex)	Perform a single iteration where we perform a loading and then an equilibration step resulting in updated costs

Methods inherited from class org.goplanit.assignment.ltm.sltm.StaticLtmAssignmentStrategy

executeNetworkCostsUpdate, executeNetworkLoading, findCentroidVertex, getAssignmentId, getIdGroupingToken, getInfrastructureNetwork, getOdDemands, getSettings, getTrafficAssignmentComponent, getTransportNetwork, hasConverged, setOdDemands, updateTimePeriod, verifyNetworkLoadingConvergenceProgress

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticLtmPathStrategy

public StaticLtmPathStrategy(IdGroupingToken idGroupingToken,
                             long assignmentId,
                             TransportModelNetwork transportModelNetwork,
                             StaticLtmSettings settings,
                             TrafficAssignmentComponentAccessee taComponents)

Constructor

Parameters:

idGroupingToken - to use

assignmentId - to use

transportModelNetwork - to use

settings - to use

taComponents - to use for access to user configured assignment components

Method Detail

createNetworkLoading

protected StaticLtmLoadingPath createNetworkLoading()

create a path based network loading for this solution scheme

Specified by:

createNetworkLoading in class StaticLtmAssignmentStrategy

Returns:

network loading for this solution approach

getLoading

protected StaticLtmLoadingPath getLoading()

The network loading to apply

Overrides:

getLoading in class StaticLtmAssignmentStrategy

Returns:

network loading

createInitialSolution

public void createInitialSolution(double[] initialLinkSegmentCosts)

create initial solution based on generating shortest paths

Specified by:

createInitialSolution in class StaticLtmAssignmentStrategy

Parameters:

initialLinkSegmentCosts - to use

performIteration

public boolean performIteration(Mode theMode,
                                double[] costsToUpdate,
                                int iterationIndex)

Perform a single iteration where we perform a loading and then an equilibration step resulting in updated costs

Specified by:

performIteration in class StaticLtmAssignmentStrategy

Parameters:

theMode - to use

costsToUpdate - the link segment costs we are updating (possibly partially for all link segments that might have been affected by a loading

iterationIndex - we're at

Returns:

true when iteration could be successfully completed, false otherwise

getDescription

public String getDescription()

Description of the chosen sLTM strategy for equilibration

Specified by:

getDescription in class StaticLtmAssignmentStrategy

Returns:

String