Your simulation is using option --meso-overtaking (which is stochastic) and seems to use a different seed for both runs. This could be sufficient cause for the deviation. Note, that when using option --random and --seed, option --random takes precedence to generate a random seed (based on system clock) and the given seed is ignored (making the run not reproducible).
Am Di., 5. Okt. 2021 um 09:50 Uhr schrieb Sasan Amini <[email protected]>: > Thanks Jakob. I tried to use --default.speeddev 0 to eliminate the effect > of speed deviation, but it actually worsened the situation. The scenario is > not that small, but I try to make one that is manageable and send it to you. > > Best, > Sasan > > On Mon, Oct 4, 2021 at 5:22 PM Jakob Erdmann <[email protected]> > wrote: > >> If your simulation is using vehicle speed deviations (active by default), >> I recommend that you use the latest development version which supports >> option >> --vehroute-output.speedfactor This reproduces the same vehicle speeds as >> the original run and should thereby reduce discrepancy. >> >> There are other reasons for the discrepancy (i.e. >> https://github.com/eclipse/sumo/issues/3024). >> If you can provide a small scenario that shows a strong difference >> between original run and re-run, please send it my way. >> >> regards, >> Jakob >> >> >> Am Mo., 4. Okt. 2021 um 17:15 Uhr schrieb Sasan Amini <[email protected] >> >: >> >>> Dear all, >>> >>> I am trying to re-create a scenario for which I don't have a calibrated >>> route file, and thus, I use device-rerouting as a Noniterative Stochastic >>> Route Choice method to avoid using duaIterate and time consuming Dynamic >>> User Equilibrium. >>> I export the final routes by using --vehroute-output option and provide >>> that as an input to my simulation again. Route lengths are identical, which >>> means the problem is that when I try to re-run the scenario with the newly >>> generated route file, I get fewer cars in my network. What I observe is >>> that almost one-third of my 300,000 cars cannot enter the simulation due to >>> congestion and therefore, I get a totally different traffic situation. I >>> tried options like --vehroute-output.intended-depart, but I still get >>> different departure times. I am running meso-simulation version 1.10.0 and >>> do not change any other parameters of my simulation except for the input >>> route file. Any tips that help me reproduce exactly the same scenario are >>> appreciated. >>> >>> Thanks, >>> Sasan >>> >>> _______________________________________________ >>> sumo-user mailing list >>> [email protected] >>> To unsubscribe from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-user >>> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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