Re: [sumo-user] Manual bus routing via traci, ordering of stops in the g

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

this is a known issue when using traci.vehicle.setStop with cyclical routes. https://github.com/eclipse/sumo/issues/6211

At the moment, all stops are added to the next suitable edge along the route without regard to other stops. If the route passes the edge of stop_B ahead of stop_A then their order will be B, A.

The only workaround is to delay setting the stop until the point where the next possible edge is also the desired edge.

The result of getNextStops is the actual order in which stops will be visited.

I recommend generating your bus schedule as xml file if it is static or to use the taxi api if you need to schedule multiple stops dynamically in a DRT-context (https://sumo.dlr.de/docs/Simulation/Taxi.html#traci)

regards,

Jakob

Am Mi., 23. Sept. 2020 um 13:32 Uhr schrieb Schneider, Tim <st148529@xxxxxxxxxxxxxxxxxxxxx>:

Dear SUMO users,

colleagues of mine and I are trying to route buses in sumo manually using the traci.vehicle.setRoute(...) and the traci.vehicle.setBusStop(...) function.

However, the order in which the buses are inserted in the list, we receive if we call traci.vehicle.getNextStops(...), differs in some cases

from the insertion order in which we called traci.vehicle.setBusStop(...). We wonder: What are the underlying rules in this bus stop list 

resulting in that ordering?

For example we call something like this:

> traci.vehicle.setBusStop(vehicle_id, stop_A, duration)

> traci.vehicle.setBusStop(vehicle_id, stop_B, duration)

> traci.vehicle.setBusStop(vehicle_id, stop_C, duration)

> traci.vehicle.setBusStop(vehicle_id, stop_D, duration)

Then we call

> traci.vehicle.getNextStopList(bus_id)

and expect the returned list of tupels now to be in the order: stop_A, stop_B, stop_C, stop_D.

However, instead we receive something like this (at least in some cases): stop_B, stop_A, stop_C, stop_D.

Does someone knows the background of this? Does the ordering of the stops in the getNextStops list even make a difference?

Unfortunately, we couldn't find information in the documentation about this.

Thanks in advance and best regards

Tim

_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user