Re: [sumo-user] how to generate better traffic demand

2020-09-29 Thread Jakob Erdmann
- use od2trips to generate trips - run duarouter on the trips using option --weights.random-factor with an argument > 1 - if you need more routes, repeat duarouter calls with different values for option --seed Am Mi., 30. Sept. 2020 um 05:09 Uhr schrieb Jane Cheung < cheung180...@gmail.com>: > D

Re: [sumo-user] Down-scaling network capacities

2020-09-29 Thread Jakob Erdmann
There is no "clean" way to downscale the network capacity since the capacity emerges not only from "obvious" things like lane numbers and road speed but also from vehicle interactions at intersections. If you want to sacrifice accuracy for speed, you could switch to a coarser simulation model and k

[sumo-user] how to generate better traffic demand

2020-09-29 Thread Jane Cheung
Dear all, If I have the OD matrix, how could I generate the random route with this specific OD matrix? Appreciated in advance. Best, Jane Cheung ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.

Re: [sumo-user] What is the unit of fuel in Emission Output?

2020-09-29 Thread nohtyp
Thanks, I understand now. Two more question about fuel used: 1. motion.png moment_fuel.png fuel.png

Re: [sumo-user] Down-scaling network capacities

2020-09-29 Thread marcelreppi
Thank you very much for the information! Let's say I would like to simulate 10% road capacity. Are there any best practices on how to do that? I am not really an expert in traffic simulation so I am a little scared/careful to adjust something without knowing the exact consequences. Thanks! Best

[sumo-user] routing

2020-09-29 Thread Raheleh Zarei
Hello, I have two questions please. - I have a sumo configuration file like this: sumo.exe --routing-algorithm HL -n ./Mtl.net.xml -r ./RoutingSim1.rou.xml --junction-taz true --device.rerouting.adaptation-interval 100 --tripinfo-output ./tripinfo.xml --vehroute-output ./vehroute.xml --vehroute-o

Re: [sumo-user] Down-scaling network capacities

2020-09-29 Thread Mirko Barthauer
Hi Marcel, road capacity is not an input to the simulation but emerges from vehicles interacting with each other and the infrastructure. For example, if you change essential car following parameters like tau, accel/decel, you will get a different road capacity. Traffic lights and max allowed

[sumo-user] Down-scaling network capacities

2020-09-29 Thread marcelreppi
Hello, is there any way of down-scaling road capacities for a network that was obtained from OSM and converted with NETCONVERT? I know there is the option to up-scale traffic but my simulation already has 290k vehicles and a lot of custom TraCI logic which slows the simulation down. Therefore, I w

Re: [sumo-user] opposite lane and "unexpected ends", stops, collisions

2020-09-29 Thread Richter Gerald
Thanks for the answer. However, I am very sure, that all neigh lane tags are symmetrical. They were generated by removal from a fully guessed net except for a chosen list of edges, where the neighbors' neigh references are kept as well. - I'd have to check, though. Some high deceleration warn

Re: [sumo-user] opposite lane and "unexpected ends", stops, collisions

2020-09-29 Thread Jakob Erdmann
Looking at your previous mail, I'm guessing the situation could be caused by asymmetrical definitions. Those aren't tested but I don't think they would work at the moment. My best guess: - asymmetrical neigh definitions prevent changing back from the opposite side - this causes vehicles to have he

[sumo-user] opposite lane and "unexpected ends", stops, collisions

2020-09-29 Thread Richter Gerald
Hi, when running a rural net with opposite lane overtake enabled in certain parts, I get quite a few surprised vehicles, indicated by "Warning: Unexpected end of opposite lane for vehicle 'v' at lane 'l', time=t" So there probably is some lack of foresight in the behavior of those vehicles. *