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Re: [sumo-user] routing vehicles over large roundabout
Yes. Setting the parameter this way is correct and should result in strong smoothing of the values by using a 20-minute interval. Can you please send the complete configuration file?

2018-04-19 12:34 GMT+02:00 Menno van der Woude <menno@xxxxxxxxxxxxxxxxxx>:
Hello Jakob,

the path is indeed reddish, however, it changes a lot between red and green (and so do all edges). I set the adaptation-steps option, but the color of the edges still changes as before (and routing seem unaffacted). Is it correct that I can add

<device.rerouting.adaptation-steps value="1200" />

to the sumocfg file to enable this option?

Greets, Menno

On 19-4-2018 12:12, Jakob Erdmann wrote:
Hello,
when loading trips, vehicles always take the fastest route according to averaged travel times.
My guess is that these times are inappropriate.
You can check this by setting the edge coloring to 'by routing device assumed speed' and see if the straight path is colored reddish.
This could occur when the averaging algorithm does not smooth out the traffic light cycle.
Try setting the option --device.rerouting.adaptation-steps yourTLSCycleTime
(see http://sumo.dlr.de/wiki/Demand/Automatic_Routing#Edge_weights)

regards,
Jakob

 2018-04-19 11:27 GMT+02:00 Menno van der Woude <menno@xxxxxxxxxxxxxxxxxx <mailto:menno@codingconnected.eu>>:

    Hello,

    while simulating a large roundabout I am running into trouble with
    the routes vehicles choose. The roundabout has four arms. Many
    vehicles want to go "straight", i.e. they want to take the first
    exit after entering the roundabout. SUMO however sends these
    vehicles for a trip all around the roundabout, which leads to
    congestion as the traffic light program is not equipped for this (it
    would also be odd in reality).

    I am using OD2TRIPS to generate trips files that I feed into SUMO
    via the <route-files> attribute in the sumocfg file.

    Given this scenario, is there a way to force (all) vehicles to
    choose the shortest route?

    Thanks, greets,

    Menno

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