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] <mailto:[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] <mailto:[email protected]> > > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <https://www.eclipse.org/mailman/listinfo/sumo-user> > _______________________________________________ > sumo-user mailing list > [email protected] <mailto:[email protected]> > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > <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
