Hello, - changeTarget uses the router configured with --routing-algorithm, that one is not randomized. it uses travelTime. The travel times obtained as described here: http://sumo.dlr.de/wiki/Simulation/Routing#Travel-time_values_for_routing - rerouteTravelTime() works the same way but uses the current travelTimes (without any smoothing) - rerouteEffort() is currently broken ( http://sumo.dlr.de/trac.wsgi/ticket/2580)
For automatic routing I highly recommend this: http://sumo.dlr.de/wiki/Demand/Automatic_Routing. regards, Jakob 2016-10-07 17:51 GMT+02:00 Iris Bekker <iris.bek...@braindrops.nl>: > Dear SUMO list, > > I am still busy with setting up some experiments with routing traffic. > Originally I intended to do all the route-calculations myself, and then > assign the new routes to vehicles using traci. However, SUMO also > supports its own rerouting. Time to investigate! > > As usual, I find myself getting stuck with details. So let's start: > changeTarget(self, vehID, edgeID) reroutes the car to the chosen edge. I > belief the routing algorithm used is the one selected with the > --routing-algorithm option when initializing SUMO? Is it true that the > Dijkstra's algorithm being used is not randomized? And does this reroute > use distance or expected travel times? > > Second, I wonder about rerouteTravelTime() and rerouteEffort(). The > latter reroutes based on the amount of energy is required to finish the > route I presume? Do I understand correctly that rerouteTravelTime() on a > car traveling from A to B should give the same result as calling > changeTarget() on a car standing at A heading to B? > > Also, is there a way of having a car automatically using the routing > algorithm when it gets added? Right now, I intend to use > traci.vehicle.addFull(vehID, "ID of edge car is currently on", ...) and > then changeTarget() to get this behaviour. > > I expect that having SUMO do the routing will be quicker than calling > all the edge's adapted travel times through traci, finding a route, and > then sending that back through traci. However, I will try and run some > benchmarks in the near future. Also, I am interested in how SUMO > calculates the adapted travel time of an edge, though I expect I can > find this on the wiki if I look for it more thoroughly. > > As always, thank you very much for all your help, > > Iris Bekker > > > ------------------------------------------------------------ > ------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > sumo-user mailing list > sumo-user@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sumo-user > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ sumo-user mailing list sumo-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sumo-user
