I have had a look at it. But, as far as I know, I should ask the simulation to get or set the vehicle data one at a time via that module(traci.vehicle). I am looking for a facility to get the flow data at a specific point automatically which I was thinking could be e1 or e2 detector.
Regards, Ali On Fri, May 14, 2021 at 1:52 PM Menno van der Woude < [email protected]> wrote: > the documentation provides ample info here: > > https://sumo.dlr.de/docs/TraCI/Vehicle_Value_Retrieval.html > > I guess you could first determine what vehicles are in a given area or > location, and then retrieve data for those vehicles. > > Greets, Menno > On 14-5-2021 11:20, ali mirzaei wrote: > > I get the point you said. But, my other question remains. What is the > option to receive vehicle data at a specific point? > Regards, > Ali > > On Fri, May 14, 2021 at 12:37 PM Menno van der Woude < > [email protected]> wrote: > >> That function should return the described value. However, if no vehicles >> were on the detector during the last step, no valid data can be returned, >> so you get -1 and (). If a vehicle was on the detector during the last >> step, the method will give you the data. >> >> Greets, Menno >> On 14-5-2021 10:04, ali mirzaei wrote: >> >> Hi Menno, >> This is what the mannaul says: >> *getLastStepMeanSpeed(self, detID)* >> >> >> *getLastStepMeanSpeed(string) -> double Returns the current mean speed >> in m/s of vehicles that were on the named e2*. >> >> I am looking for a tool by which I can extract the flow characteristics >> at the time the vehicle is on the detector. So, is there any option to get >> more data of vehicles in traci.lanearea module? >> >> Sincerely, >> ALI >> >> >> On Fri, May 14, 2021 at 11:33 AM Menno van der Woude < >> [email protected]> wrote: >> >>> Hello Ali, >>> >>> the e1 detector has no length, I think you should use an e2 detector if >>> you want to have a detector that covers an area. >>> >>> Regarding the functions: when do you call these? I'd expect -1 and () >>> when no vehicles were on the detector during the last step. So at the >>> start of the simulation, you will most likely get those results. And >>> afterwards if there has been no traffic. >>> >>> Greets, Menno >>> >>> On 13-5-2021 23:28, ali mirzaei wrote: >>> > Hi everyone, >>> > 1- What is the length of the induction loop(e1detector)? >>> > 2- in the case of e2detector, when I generate my add.XML file >>> consisting of: >>> > <e2Detector id="e2Detector_1" lane="e2_0" pos="15.22" >>> > length="10.00" freq="5" file="e2_det.xml" friendlyPos="1"/> >>> > and call the functions: >>> > print(traci.lanearea.getLastStepMeanSpeed("e2Detector_1")) >>> > print(traci.lanearea.getLastStepVehicleIDs("e2Detector_1")) >>> > the answer is "-1" and "()". >>> > Why does this happen? >>> > Any help would be appreciated. >>> > >>> > Regards, >>> > Ali >>> > _______________________________________________ >>> > 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 [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 [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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