Totally understood. Thank you Mr. Erdmann.
On Wed, Apr 15, 2020 at 3:02 PM Jakob Erdmann <[email protected]> wrote: > You will need to have actionStepLength > tau to create unsafe driving in > most models. The difference can be very small as long as you make sure that > vehicles follow each other closely. > Note that you can configure whether you want to flag "physical" collisions > or minGap violations ( *--collision.mingap-factor*). If vehicles are > configured with minGap > 0 and you only detect physical collisions then the > margin of error must be larger to overcome the minGap. > > Am Mi., 15. Apr. 2020 um 13:11 Uhr schrieb Angelos Michalopoulos < > [email protected]>: > >> Ok, >> >> Thank you very much. This works indeed now. >> >> In this case though the parameter changed is the tau as far as I see. >> To create a similar behaviour by changing the reaction time, I am >> experimenting with action step length as suggested in: >> https://sumo.dlr.de/docs/Car-Following-Models.html#actionsteplength >> >> (tau is not reaction time, I am aware of that.) >> >> Would you say that there is a minimum difference between step-length and >> actionsteplength to have a behaviour similar to the one of the example? >> >> Thank you very much. >> >> >> On Fri, Apr 3, 2020 at 7:43 PM Jakob Erdmann <[email protected]> >> wrote: >> >>> You can download at test case where vehicles with minGap zero collide at >>> https://sumo.dlr.de/extractTest.php by entering >>> 'sumo/cf_model/tau/step1.0_tau0.5/krauss' in the test path field. >>> >>> Am Fr., 3. Apr. 2020 um 12:47 Uhr schrieb Angelos Michalopoulos < >>> [email protected]>: >>> >>>> Thank you for your answer Mr. Erdmann. >>>> >>>> I can generate collisions with varying mingap distances and maxspeed >>>> conditions. However I can not do it when the distance is set to zero and >>>> have a physical collision. >>>> >>>> I have tried increasing the speed as well and changing the model to >>>> IDM,W99 and change their parameters as well to create unsafe reaction >>>> conditions. >>>> >>>> So my problem is not in the warning,this is issued, I can't actually >>>> create the crash in the simulation. I think I do not find the correct >>>> correlation in the parameters. >>>> >>>> As far as I understand the safety checks can only be disabled in TraCI >>>> so my problem could be that I use sumo. But I am not trying to generate the >>>> collision at a specific time. My understanding may be incorrect and I would >>>> be happy to be wrong in this case. >>>> >>>> Thank you! >>>> >>>> On Fri, 3 Apr 2020, 11:56 Jakob Erdmann, <[email protected]> wrote: >>>> >>>>> see https://sumo.dlr.de/docs/Simulation/Safety.html >>>>> >>>>> Am Fr., 3. Apr. 2020 um 10:28 Uhr schrieb Angelos Michalopoulos < >>>>> [email protected]>: >>>>> >>>>>> Hello everyone! >>>>>> I would like to ask a question regarding collisions. >>>>>> >>>>>> I am trying to create collisions, but with mingap==0. >>>>>> >>>>>> I can create collisions but the vehicle(s) always avoid the physical >>>>>> collision in the scenario. >>>>>> >>>>>> I am working on a simple scenario with four vehicles in a highway of >>>>>> one lane. The length is two km. Every car departs on max speed (tried >>>>>> from >>>>>> 30 to 60 m/s) and the first stops after a km suddenly. I have tried >>>>>> changing some parameters like tau, but I was unable to do what I am >>>>>> trying >>>>>> to do and I couldn't find specifically what I am looking for. >>>>>> >>>>>> Thank you very much! >>>>>> >>>>>> Regards, >>>>>> >>>>>> Angelos >>>>>> _______________________________________________ >>>>>> 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 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 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 >
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