Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [sumo-user] R: TraCI changeTarget
Hello,
- the same thing that were said about changeTarget also apply to findRoute. Note, that findRoute also accepts the routingMode command.
- duaIterate.py can take between 10 and several hundreds of iterations to converge. Unfortunately it is hard to tell in advance. One known problem occurs when the initial simulations are so congested that no good information is generated for the subsequent run. You could use marouter to get a better starting solution and cut down the number of iterations.

regards,
Jakob

2018-08-06 19:54 GMT+02:00 Stefano Niero <stefano.niero@xxxxxxxxxx>:

Thank you very much, is it true also for the calculation of the travelTime using the command findRoute?
Also, I have to calculate some traffic using DUAROUTER, the problem is that the scenario is very big and the trips are more or less 1million distributed in 24 hours. It is not vital to have it optimized because I can still retrieve some data but in the case, do you think is viable in a not too long term to perform the iterations using duaIterate.py? How many iteration would I need in order to get a decent result? Because I don’t know how can I tell in advance but if the order of magnitude of iteration is high I cannot afford it..

 

Thank you very much

Stefano

 

Da: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> Per conto di Jakob Erdmann
Inviato: 06 August 2018 19:16
A: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Oggetto: Re: [sumo-user] TraCI changeTarget

 

Hello,

 

If you use sumo version 0.32.0 and older, then changeTarget does not consider traffic by default.

Once you use rerouteTravelTime, the edge travel times are updated using the traffic at that point in time and will also be considered by changeTarget.

 

If you use the latest development version, you have the alternative possibility of using smoothed travel time values by using the command vehicle.setRoutingMode(vehID, traci.constants.ROUTING_MODE_AGGREGATED) prior to calling changeTarget. For details see http://sumo.dlr.de/wiki/Demand/Automatic_Routing#Edge_weights

 

regards,

Jakob

 

 

2018-08-06 13:48 GMT+02:00 Stefano Niero <stefano.niero@xxxxxxxxxx>:

Hi,

I have to perform a very big simulation in which I have to register some data concerning distances and times regarding Taxis in Munich but now I have to insert the traffic  so there is something that is not completely clear to me: to what extend does the changeTarget command in TraCI consider traffic? In other words, is rerouteTravelTime a necessary command if there is traffic, for example to avoid too congestioned junctions?

 

Thank you very much

Stefano Niero


_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user

 


_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To change your delivery options, retrieve your password, or unsubscribe from this list, visit
https://dev.eclipse.org/mailman/listinfo/sumo-user


Back to the top