Hello, The followign steps can help to investigate the issue: - observe traffic in sumo-gui and figure out where vehicles are waiting for insertion: https://sumo.dlr.de/wiki/Simulation/VehicleInsertion#Investigating_insertion_delay. Possibly some downstream jam is responsible. - count the number of vehicles that are to be inserted on this edge and compare this value to the detector count: https://sumo.dlr.de/wiki/Tools/Routes#showDepartsAndArrivalsPerEdge
One reason for reduced insertion flow might be due to the default insertion speed of 0. You can change this by setting dfrouter option --departspeed max. However, I suspect that there is some other issue at play here. If you cannot figure it out, try to reproduce the problem with a simplified version of your scenario (e.g. only using 1 detector) and then send the files to the mailing list so others can help out. regards, Jakob Am Fr., 9. Aug. 2019 um 14:12 Uhr schrieb Evans, Barry <[email protected] >: > Hi there, > > > > I’m trying to generate realistic traffic flows within a city based on > traffic data obtained from detectors. I’ve tried following the examples in > demand from observation points ( > https://sumo.dlr.de/wiki/Demand/Routes_from_Observation_Points) and > Tutorials/HighwayDetector ( > https://sumo.dlr.de/wiki/Tutorials/HighwayDetector) but not had much > success. > > > > I used the “Locating detectors” script with my net file to generate the > detector information (based on my detector lat lon coordinates) and I > created a flow file with the count and average speed of vehicles across > each detector. I then run the dfrouter script referencing the input files > and ask it to output a route file and emitter file. > > > > When I try running sumo only a few vehicles are added to the network even > though I’m getting a lot of messages saying “vehicle is inserted in > emergency situation” with the majority of vehicles in my summary output > showing as “waiting”. > > > > To give some information about my input data for dfrouter my flow values > in my flow file are aggregated to 5 minute intervals so my flow file looks > like this: > > > > Detector;Time;qPKW;qLKW;vPKW;vLKW > > Detector1;0.0;9;0;22.98;0 > > Detector2;0.0;13;0;12.42;0 > > Detector1;5.0;8;0;20.5;0 > > Detector2;5.0;51;0;29.81;0 > > > > And detector data is like: > > > > <e1Detector id=" Detector1" lane="-25118551#3_1" pos="18.72243033159732" > freq="60" file="NUL" friendlyPos="True"/> > > <e1Detector id=" Detector2" lane="-25118551#3_1" pos="25.050468409043802" > freq="60" file="NUL" friendlyPos="True"/> > > > > > > I tried changing the frequency (freq=”60”) to freq=”300” as thought maybe > it was setting emitter probability to high but this doesn’t fix things. > I’ve also tried changing the “departLane” parameter to departLane=“allowed” > and set departPos=”random_free” to see if that would add vehicles to an > unoccupied location but that also doesn’t work. > > > > Could someone give me some advice as to what the potential issue is please > or if I’m completely misunderstanding the use of dfrouter (which is likely > the case) and point me in direction of tutorial or documentation I can look > at to build realistic traffic flows within a city area based on count data. > > > > Thank you in advance. > > > > Kind regards, > > > > Barry > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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