Re: [sumo-user] Running duaIterate.py with flowrouter.py routes

[Alejandro Rodríguez Sánchez <alrodr25@xxxxxx>]

Thanks for the guidance Jakob. Regarding the "implausible routes", I'm experiencing some difficulties with the "implausibleroutes.py" script since a while, that is why I started to look for alternatives.

When using python implausibleroutes.py network.net.xml routes.xml, I have the following error:

FileNotFoundError: [Errno 2] No such file or directory: 'routes.xml.rerouted.rou.alt.xml'

Which makes sense because my routes file hasn't that name. Searching in the code, it seems to me that the error may come from the "duarouterAltOutput" definition shown below that. But I don't really know what to do to get rid of this error. It doesn't not work with absolute paths neither.

    prefix = os.path.commonprefix(options.routeFiles)

    duarouterOutput = prefix + '.rerouted.rou.xml'
    duarouterAltOutput = prefix + '.rerouted.rou.alt.xml'

Regards,

Alejandro

El lun, 15 nov 2021 a las 14:22, Jakob Erdmann (<namdre.sumo@xxxxxxxxx>) escribió:

Hello,

the two outpufiles generated by flowrouter.py (routes and flows) must be used together. This can either be done by adding the routes with option --additional or by using duarouter in a preprocessing step (load routes, flows and network to create a combined file with lots of vehicles).

The whole idea of combining flowrouter (or any other tool that creates routes from counting data) with duaIterate to ease congestion is questionable though, because the new routes may ignore the original edge count values that were used with flowrouter.

Flowrouter is known to generated "implausible routes" which are more likely to cause congestion in some networks. There are two approaches to deal with this problem

- identify and blacklist "implausible" routes to guide the flowrouter process

- use another tool

See https://sumo.dlr.de/docs/Demand/Routes_from_Observation_Points.html#chosing_the_right_tool

regards,

Jakob

Am Sa., 13. Nov. 2021 um 09:22 Uhr schrieb Alejandro Rodríguez Sánchez <alrodr25@xxxxxx>:

Hello everyone,

I am trying to use the duaIterate.py script to ease congestion in my network using the flowrouter.py output. However, at the moment I have not succeed:

When running duaiterate with the options --additional vtypes.add.xml -r routes.xml -e 21600 --time-to-teleport.highways 120 duarouter--vtype-output dummy.xml duarouter--additional-files vtypes.add.xml

I have this error in the "dua.log" file:

Error: No route input specified or all routes were invalid.
Quitting (on error).

When I introduce the flows as input (option -F flows.xml), the errors change to the following:

Error: The route '-226701455_219967849.qPKW.0' for flow '-226701455_219967849.qPKW.0' is not known. (and the error repeats for every flow defined in the flows.xml file).

What I am missing here? Is it not possible to run duaIterate.py using the flowrouter.py output as routes/flows data?

Kind regards,

Alejandro.

--

Alejandro Rodríguez Sánchez

PhD student
CIEMAT // Universidad Complutense de Madrid
28040 Madrid
email: alrodr25@xxxxxx

Website: https://alexrsanchez.github.io/en/

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--

Alejandro Rodríguez Sánchez

PhD student
CIEMAT // Universidad Complutense de Madrid
28040 Madrid
email: alrodr25@xxxxxx

Website: https://alexrsanchez.github.io/en/