network change Events

[SarahSie]

I want to block a road in my map starting from a certain time of the day and ending at a certain time (set back the original attributed). I have read in the MATSim that I should put the freeSpeed and flowCapacity attributes of the road to Zero. therefore I have changed the networkChangeEvents to the following:

<?xml version="1.0" encoding="UTF-8"?>
<networkChangeEvents xmlns="http://www.matsim.org/files/dtd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.matsim.org/files/dtd http://www.matsim.org/files/dtd/networkChangeEvents.xsd">

    <networkChangeEvent startTime="6:00:00">
        <link refId="550924"/>
        <link refId="550925"/>
        <freespeed type="absolute" value="0.0"/>
        <flowCapacity type="absolute" value="0.0"/>
    </networkChangeEvent>

    <networkChangeEvent startTime="9:00:00">
        <link refId="550924"/ >
            <link refId="550925"/ >
        <freespeed type="absolute" value="22.22222222222222"/>
         <flowCapacity type="absolute" value="600.0"/>
    </networkChangeEvent>

</networkChangeEvents>

but it gets an error when I write two freeSpeed and flowCapacity in the same event. what should I do?

[kainagel]

Maybe like this:

<networkChangeEvent startTime="6:00:00">
        <link refId="550924"/>
        <link refId="550925"/>
        <freespeed type="absolute" value="0.0"/>
    </networkChangeEvent>

<networkChangeEvent startTime="6:00:00">
        <link refId="550924"/>
        <link refId="550925"/>
        <flowCapacity type="absolute" value="0.0"/>
    </networkChangeEvent>

...

(i.e. essentially repeat the entry for the flowCap change)???

[SarahSie]

yes, it works one attribute per event. Thank you.

[miilljana]

Hi, Can the streets be blocked even if there are pt vehicles that are supposed to go through those links? I tried to set the flow capacity and free speed to 0, but I get the following error:

2022-01-31T14:50:20,571 ERROR ParallelPersonAlgorithmUtils$ExceptionHandler:164 Thread PersonPrepareForSim.1 died with exception while handling events. java.lang.RuntimeException: Expected number of change events (2) differs from the number of events found (0)! at org.matsim.core.network.VariableIntervalTimeVariantAttribute.recalc(VariableIntervalTimeVariantAttribute.java:93) ~[classes/:?] at org.matsim.core.network.TimeVariantLinkImpl.recalcFreespeed(TimeVariantLinkImpl.java:212) ~[classes/:?] at org.matsim.core.network.TimeVariantLinkImpl.getFreespeed(TimeVariantLinkImpl.java:127) ~[classes/:?] at org.matsim.core.trafficmonitoring.TravelTimeDataArray.getTravelTime(TravelTimeDataArray.java:115) ~[classes/:?] at org.matsim.core.trafficmonitoring.TravelTimeCalculator.consolidateData(TravelTimeCalculator.java:463) ~[classes/:?] at org.matsim.core.trafficmonitoring.TravelTimeCalculator.getLinkTravelTime(TravelTimeCalculator.java:373) ~[classes/:?] at org.matsim.core.trafficmonitoring.TravelTimeCalculator$1.getLinkTravelTime(TravelTimeCalculator.java:513) ~[classes/:?] at org.matsim.core.router.AStarEuclidean.addToPendingNodes(AStarEuclidean.java:152) ~[classes/:?] at org.matsim.core.router.Dijkstra.relaxNodeLogic(Dijkstra.java:438) ~[classes/:?] at org.matsim.core.router.Dijkstra.relaxNode(Dijkstra.java:409) ~[classes/:?] at org.matsim.core.router.AStarLandmarks.relaxNode(AStarLandmarks.java:137) ~[classes/:?] at org.matsim.core.router.Dijkstra.searchLogic(Dijkstra.java:317) ~[classes/:?] at org.matsim.core.router.Dijkstra.calcLeastCostPath(Dijkstra.java:234) ~[classes/:?] at org.matsim.core.router.AStarLandmarks.calcLeastCostPath(AStarLandmarks.java:124) ~[classes/:?] at org.matsim.core.router.NetworkRoutingModule.calcRoute(NetworkRoutingModule.java:108) ~[classes/:?] at org.matsim.core.router.TripRouter.calcRoute(TripRouter.java:182) ~[classes/:?] at org.matsim.core.router.PlanRouter.run(PlanRouter.java:101) ~[classes/:?] at org.matsim.core.population.algorithms.PersonPrepareForSim.run(PersonPrepareForSim.java:233) ~[classes/:?] at org.matsim.core.population.algorithms.ParallelPersonAlgorithmUtils$PersonAlgoThread.run(ParallelPersonAlgorithmUtils.java:145) ~[classes/:?] at java.lang.Thread.run(Thread.java:832) [?:?]