Hello,
Thank you Jacob, but after having done the reduction of the initial junctions/edges to one artery, and the generation of the related net.xml, rou.xml and cfg files a new problem appeared. The simulation is running the traffic lights are changing but NO VEHICLES
are inserted (note that the vehicles were specified in rou.file, and the junctions, checked manually using NETEDIT, appeared in the net.xml and rou.xml). Please tell what goes wrong and how to proceed to carry out the simulation of traffic on the artery. Should
I delete not related junctions from the net in another way? Or some deleted junctions still exist in the mentioned files, and the routes cannot be passed over. No message error was displayed.
Best regards,
Jerry
Od: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> w imieniu użytkownika Jakob Erdmann <namdre.sumo@xxxxxxxxx>
Wysłane: piątek, 20 marca 2020 22:42
Do: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Temat: Re: [sumo-user] ODP: Traffic Assignment
Hello,
I'm interested to simulate and analyze traffic on a main artery ( about 10 intersections, 3-4 lanes on an edge). To eliminate not related junctions
and connections I had closed the edges out of the artery, leaving only the closest junctions to the artery. During simulation many traffic jams appeared because of vehicles trying to turn into the closed edges, and block others. Maybe I should cut/delete
the junctions/edges in an another way?
Thank you in advance for advice.
Best regards,
Jerry
Thank you very much
Thank you very much. I would be happy if you could send me any document regarding how to change user equilibrium to system optimal algorithm.
Regards,
Correct. There is currently no tool in SUMO that would find the system optimum for you directly.
However, you should be able to hook into the UE assignment iteration and swap out average travel times with your own estimate of marginal travel times to approach the SO as described in the literature.
regards,
Jakob
Dear Jakob,
Thank you very much for your reply. I found only the User Equilibrium (UE) assignment, and there is no System Optimal (SO) Assignment, am I right?
Regards,
Hello Dear All,
I would be happy if you could answer the following questions:
1. I want to run a macroscopic dynamic system optimal traffic assignment in which I can embed a criterion for the traffic assignment algorithm solution.
Is it possible to do so in SUMO?
-is the traffic assignment algorithms' source code available in SUMO?
If so, How?
Regards,
--
Behzad Bamdad Mehrabani
Ph.D. Candidate, UCLouvain, Faculty of Architecture, Architectural Engineering and Urban Planning, Tournai, Belgium
cell: (+32) 497 29 22 14
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Behzad Bamdad Mehrabani
Ph.D. Candidate, UCLouvain, Faculty of Architecture, Architectural Engineering and Urban Planning, Tournai, Belgium
cell: (+32) 497 29 22 14
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--
Behzad Bamdad Mehrabani
Ph.D. Candidate, UCLouvain, Faculty of Architecture, Architectural Engineering and Urban Planning, Tournai, Belgium
cell: (+32) 497 29 22 14
_______________________________________________
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_______________________________________________
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--
Behzad Bamdad Mehrabani
Ph.D. Candidate, UCLouvain, Faculty of Architecture, Architectural Engineering and Urban Planning, Tournai, Belgium
cell: (+32) 497 29 22 14
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