A main source of differences between simulations with different step lengths is vehicle insertion (more frequent insertion attempts lead to higher insertion flow). See https://sumo.dlr.de/docs/Simulation/VehicleInsertion.html
To achieve vehicle behavior closer to the 1-second simulation, run the simulation with --step-length 0.1 --action-step-length 1 Make sure that all vehicles depart at full seconds or this will be another source for scenario divergence. Am Sa., 11. Juli 2020 um 00:47 Uhr schrieb Tetris < [email protected]>: > behrisch wrote > > Am 06.07.20 um 09:24 schrieb Tetris: > >> I used fcd output to get the acceleration and speed data of a > simulation. > >> The total travel time is 168 seconds longer with --step-length 1 than > >> with > >> --step-length 0.1. > > > > This sounds like a lot. What is the absolute value of the total travel > > time? > > Hi, > > I compared another simulation with step length 1 and step length 0.1: > > < > http://sumo-user-mailing-list.90755.n8.nabble.com/file/t300/steplength_comparison.png> > > > The vehicle in the simulation with step length 0.1 can drive while in the > step length 1 simulation it has to stand still. For example around 300 > samples in the step length 1 simulation compared to arond 3000 samples in > the step length 0.1 simulation. > > So the behaviour is different. > > https://sumo.dlr.de/docs/Simulation/Safety.html#action_step_length > <https://sumo.dlr.de/docs/Simulation/Safety.html#action_step_length> > The wiki says the reaction time is set by step time. What I actually wanted > was the same simulation with the same behaviour but more frequent output > values. > > > > > -- > Sent from: http://sumo-user-mailing-list.90755.n8.nabble.com/ > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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