Re: [sumo-user] Vehicules stop at junction for a long time

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

The easiest solution may be to compare the number of vehicles before and after the filtering operation and then scale up the traffic demand to compensate. Either by modifying the activitygen inputs or by setting sumo option --scale.

Am Di., 28. Sept. 2021 um 15:48 Uhr schrieb Ranarivelo Antsa via sumo-user <sumo-user@xxxxxxxxxxx>:

I did what you said and i guess it's working fine now. There's a "but" . I use SUMO to simulate trafic congestion and at first there was congestion ( maybe because of the cars stopping for no reason in the network ) but now it's clean . Looks like there's maybe less cars running? But I know there's supposed to be a minimum of jamming there due to some factors . So I guess my simulation is an " ideal situation" simulation . 

My question is, how can I simulate more real factors like:

- cars parked along the road , reducing the capacity of the road

- bad road condition reducing vehicule maximum speed 

Sorry for bothering but it's for my master's degree project and I really need help, and again thanks a lot for taking the time to answer me . 

Ranarivelo Voahangy Antsa

Le mardi 28 septembre 2021, 16:17:20 UTC+3, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

Activitigen assumes a fully connected network and may created invalid trips if your network isn't fully connected.

A possible solution is to filter out invalid trips with the command

duarouter -n your.net.xml -r old.rou.xml --ignore-errors --write-trips -o filtered.rou.xml

regards,

Jakob

Am Di., 28. Sept. 2021 um 14:50 Uhr schrieb Ranarivelo Antsa via sumo-user <sumo-user@xxxxxxxxxxx>:

Thanks for your answer !  I removed the  --ignore-route-errors in my configuration file. And now the simulation just stops because of this error :

Warning: No connection between edge '29078828' and edge '28916213#0' found.

Warning: No route for vehicle 'randUni14323:1' found.

Error: Vehicle 'randUni14323:1' has no valid route.

Quitting (on error).

How can I solve this? 

I am sending you the simulation inputs.

Thanks again for your help.

Ranarivelo Voahangy Antsa

Le mardi 28 septembre 2021, 12:54:08 UTC+3, Jakob Erdmann <namdre.sumo@xxxxxxxxx> a écrit :

Possibly, your simulation is running with invalid routes and option --ignore-route-errors.

This is one of the few reasons vehicles would simply stop at the end of an edge.

If that is not the case, please send in a minimum input example to reproduce the issue.

regards,

Jakob

Am Di., 28. Sept. 2021 um 10:11 Uhr schrieb Ranarivelo Antsa via sumo-user <sumo-user@xxxxxxxxxxx>:

Hi everyone ,

I am new to SUMO , and i tried launching a simulation using activityGen and I have som simulation issues. 

Some car that are supposed to leave the network are just stoping at the end of the edge, creating an unrealistic jamming. 

What may be causing this problem?

Some cars also stop at a junction while there's no car blocking their path.

Thanks for your help,

Ranarivelo Voahangy Antsa 

IT Consultant

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