Hi Mirko, The scenario consists of a one lane road where only buses are being modelled. The flows vary between 10 b/h and 110 b/h.
The buses are inserted at the route begin and there is no spillback. On the following image, I plotted the cumulative number of buses for each line (each graph is a replication) [image: image.png] As you can see, more 517 buses are inserted in almost all cases. Could it be related to randomness? How can I balance the number of buses, without inserting them at regular intervals? Thanks in advance, Kind regards -- Jaime Moya Pontificia Universidad Católica de Chile El mar, 26 jul 2022 a las 3:13, [email protected] (< [email protected]>) escribió: > Hi Jaime, > > > > that's difficult to guess without knowing more about your scenario. Did > you check whether the buses are inserted at the route begin at all? Maybe > there is a spillback queue or many other vehicles want to enter the > simulation at the same place, such that SUMO cannot place new vehicles on > the road safely. If your network is too big to do this manually, think of > placing > a detector > <https://sumo.dlr.de/docs/Simulation/Output/Induction_Loops_Detectors_%28E1%29.html> > (with attribute vTypes="vehDist_IDM_bus") at the route begin or adding FCD > output <https://sumo.dlr.de/docs/Simulation/Output/FCDOutput.html> to > your bus vehicle type to get relevant output for further diagnosis. > > > > Mirko > > > > > > > > > > > > -----Original-Nachricht----- > > Betreff: [sumo-user] Modelling two bus lines of equal frequency > > Datum: 2022-07-25T18:59:30+0200 > > Von: "Jaime Moya" <[email protected]> > > An: "Sumo project User discussions" <[email protected]> > > > > > > > Hi, > > I am modelling two bus lines of equal frequency, but different stop times > at bus stops. To avoid buses being inserted at perfect regular times, I am > using probability: > > <flow id="517" type="vehDist_IDM_bus" line="517" begin="0.00" > route="Ruta_517" end="4500" probability="0.0015" /> > <flow id="518" type="vehDist_IDM_bus" line="518" begin="0.00" > route="Ruta_518" end="4500" probability="0.0015" /> > > However, in many scenarios I am obtaining big differences in the number of > simulated buses of one line with respect to the other (line 517 vs line > 518). For example, the following graph shows the difference (number of 517 > buses minus number of 518 buses) for a number of simulated scenarios: > [image: image.png] > > These differences are important because I am getting results with noise. I > don't want to use "vehsPerHour" or "number" because the buses would be > equally spaced. Should I use period [exp(x)]? Doing so would balance the > number of 517 and 518 simulated buses? > > Thanks in advance. > > Kind regards, > > -- > Jaime Moya > Pontificia Universidad Católica de Chile > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > Libre > de virus. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > > > > _______________________________________________ > sumo-user mailing list > [email protected] > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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