In the latest development version, several issues related to change events have been fixed (https://github.com/eclipse/sumo/issues/5789). My expectation is, that there should be a changeStarted and changeEnded event for every change now. Please report any deviations that you encounter.
Am Di., 25. Juni 2019 um 11:34 Uhr schrieb Jakob Erdmann < [email protected]>: > You should be able to count all maneuvers with a <change> event. > Sublane maneuvers (repositioning within a lane) are intentionally excluded > from the output. This may cause changeEnded events to become lost when the > motivation changes during the maneuver (which is probably a bug). > > Thanks for the example. > > Am Mi., 19. Juni 2019 um 16:41 Uhr schrieb Nico Weber <[email protected] > >: > >> Hi Jakob, >> >> >> >> thanks for your explanation so far! Attached you find the zipped >> sample-scenario (change ending from “.piz” to “.zip” to open it). Based on >> your answer I try to explain my problem more detailed again: >> >> >> >> Primary, my aim is to analyse how different attributes within the >> traffic simulation are distributed in case of stochastic traffic. Therefore >> I built up a more complex simulation which shall approximate a stochastic >> traffic, which could occur in reality. In the second attachment you find >> the lanechange-output of the corresponding simulation. To analyse only the >> “correct” and “successful” lane changes, for now I thought, that if the >> “changestarted” and “changeEnded” options are activated, only lane >> changes from vehicles in the output-file where these three change-states >> occur for an specific lane change are the successful ones and therefore are >> the only lane changes I can investigate afterwards further. >> >> >> >> Then I saw in the sample scenario, that a seeming “successful” lane >> change can occur in the corresponding lanechange-output with only the >> “changeStarted” and “change” event. Due to this fact I am unsure under >> which condition I have to count a lanechange as “successful” in the more >> complex simulation, because, like mentioned above, sometimes all three >> states occur, sometimes not. >> >> >> >> In addition, maybe it can give you a hint that there is never the reason >> “sublane” for lane changing in both, the sample and the complex simulation. >> Maybe this could be caused by the fact that I chose a high value for the >> lateral resolution, because I want the sublane-Model to be activated for >> its additional options but I do not want to have real sublanes within the >> simulation. Can you give an answer how to achieve this in general? I have >> in mind the following explanation of the doc: >> >> >> >> Lane-changing model for sublane-simulation >> <https://sumo.dlr.de/wiki/Simulation/SublaneModel> (used by default when >> setting option *--lateral-resolution <FLOAT> >> <https://sumo.dlr.de/wiki/Basics/Notation#Referenced_Data_Types>*). This >> model can only be used with the sublane-extension. >> >> *Caution:* >> This model may technically be used without activating sublane-simulation >> but this usage has not been fully tested and may not work as expected. >> >> >> >> >> >> Thanks for your effort again. >> >> >> >> Best regards >> >> Nico >> >> >> >> *Von:* [email protected] [mailto: >> [email protected]] *Im Auftrag von *Jakob Erdmann >> *Gesendet:* Mittwoch, 19. Juni 2019 14:05 >> *An:* Sumo project User discussions <[email protected]> >> *Betreff:* [EXTERNAL] Re: [sumo-user] Definition/Condition >> "changeStarted"/"changeEnded" event in Lanechange Output >> >> >> >> I've updated the description at >> https://sumo.dlr.de/wiki/Simulation/Output/Lanechange#Continuous_Lane_Changes >> >> The cause of the observed behavior may be that a lane change is started >> for non-sublane reasons and then the reason is changed to 'sublane' before >> finishing the maneuver. This could indicate a bug. Please provide a minimal >> sample scenario. >> >> >> >> Am Mi., 19. Juni 2019 um 09:44 Uhr schrieb Nico Weber < >> [email protected]>: >> >> Dear all, >> >> >> >> i am currently writing my Master thesis regarding the safety validation >> of highly automated driving functions through simulative approaches. >> Therefore, amongst others, I use SUMO as tool for the traffic simulation. >> In detail, I actually investigate the lane change behavior. Within the Sumo >> user doc (https://sumo.dlr.de/wiki/Simulation/Output/Lanechange) the >> definition of the “change” element of the lane change output is explained, >> but not those of the “changestarted” events and “changeEnded” events in >> case of activating this option. Could you please explain what conditions >> have to be fulfilled to trigger these events? The background is, that in my >> more complex simulation I saw that all three types of change events occur. >> But within a simple dummy simulation, where only some lane changes are >> performed, only the “changestarted” events and “change” events occur, >> although vehicles perform “complete” lane changes. If necessary it is no >> problem to send you the corresponding files of the dummy simulation. >> >> >> >> Thanks in advance. >> >> >> >> Best regards >> >> Nico >> >> _______________________________________________ >> 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 >> >> _______________________________________________ >> 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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