Hi Stefan, hi Marcus Thank you for your explanation ! Very useful, and thanks a lot for sharing your paper ! I just have a question, I don't know how to add additonal bits to the traci command Change Vehicle State/speed mode, in order to configure the behavior at intersections in files of sumo ... What lines I have to modify in which files ?
Can you help me ? Best Regards, Marie-Ange 2014-09-02 20:22 GMT+02:00 Marcus Müller <[email protected]>: > Wow, > > thank you so much! I'm very grateful to have you as a contact who is > already performing this > successful. Thanks for sharing the paper. > Do you already know where your Demo will take place? > > Regards, > > marcus > > -----Original Message----- > From: Stefan Joerer [mailto:[email protected]] > Sent: Dienstag, 2. September 2014 19:39 > To: [email protected] > Subject: Re: [sumo-user] Let car ignore traffic light or other rules > > Hi Marie, hi Marcus, > > I have been using SUMO for quite a while to simulate crashes at > intersections. In the past this was a bit tricky, but since Version > 0.20.0 this is very easy accessible via TraCI: > > Quote from ChangeLog: > "added additonal bits to the traci command Change Vehicle State/speed mode > to configure the behavior at intersections. This can be used to make > vehicles ignore right-of-way rules and also to force them to drive across a > red light." > > Have a look at: > > http://sumo-sim.org/userdoc/TraCI/Change_Vehicle_State.html > > speed mode (0xb3) > > bit3: Regard right of way at intersections > > Hope this helps you! We have also proposed a simple intersection approach > model which resembles different driver behaviors for intersection > approaches: > > Stefan Joerer, Bastian Bloessl, Matthaeus Huber, Abbas Jamalipour and > Falko Dressler, "Simulating the Impact of Communication Performance on Road > Traffic Safety at Intersections," Proceedings of 20th ACM International > Conference on Mobile Computing and Networking (MobiCom 2014), Demo Session, > Maui, HI, September 2014. (to appear) > > Available: http://www.ccs-labs.org/bib/joerer2014simulating/ > > Cheers, > Stefan > > -- > Stefan Joerer, MSc > Institute of Computer Science > University of Innsbruck, Austria > Phone: +43 512 507 53254 > http://ccs-labs.org/~joerer/ > > On 09/03/2014 02:26 AM, Marcus Müller wrote: > > Hi Marie, > > > > > > > > please be aware that I am completely new to this – so please don’t > > take my word for gold :) > > > > But in this very question I have already two answers of Jakob which I > > would like to append, > > > > in case that you are not member of the sumo-dev group. > > > > Today I had some problems getting TraCI to run, but now, that these > > probs are solved I start to > > > > try out the following suggestions: > > > > > > > > “””””””””””# 1 #””””””””””” > > > > Hello, > > > > it should be quite easy to modify the car-following model so as to force > (rear collision) accidents. > > > > The current (default) model computes the maximum speed which still > allows braking if the leaders were to brake. This velocity is then used by > the vehicle (if the vehicle parameters and speed limit allow). By modifying > the model so as to return a larger value, the vehicle will drive in an > "unsafe" manner and will crash if the leader vehicle brakes hard. > > > > Note, that sumo will flag the situation as a collision as soon as the > leader comes within the "minGap" of the follewer vehicle and will > immediately "teleport" to follower vehicle to a subsequent lane (if you > want to make sure that vehicles intersect closely you should set the minGap > attribute to 0). > > > > Flanking collisions are more difficult to create. Head-on collisions are > currently not possible. > > > > Also, sumo hardly models any physics, besides limiting acceleration and > deceleration. You need to modify these parametesr ("accel" and "decel") to > simulation different road conditions. > > > > > > > > regards, > > Jakob. > > > > “”””””””””””””””””””””””””” > > > > > > > > “””””””””””# 2 #””””””””””” > > > > Hello, > > > > see <http://sumo-sim.org/wiki/TraCI/Change_Vehicle_State> > > http://sumo-sim.org/wiki/TraCI/Change_Vehicle_State > > > > The commands 'speed mode' and 'lane change mode' have some > safety-relevant flags. > > > > You can only set these via TraCI at the moment. > > > > regards, > > Jakob > > > > “”””””””””””””””””””””””””” > > > > > > > > Hope this helps, > > > > > > > > Marcus > > > > > > > > > > > > > > > > From: Marie-Ange Lebre [mailto:[email protected]] > > Sent: Dienstag, 2. September 2014 18:08 > > To: Marcus Müller > > Cc: sumo-user > > Subject: Re: [sumo-user] Let car ignore traffic light or other rules > > > > > > > > Hi Marcus, > > > > > > > > Thanks a lot for your answer and your help ! > > > > Ok, I understand that commands with Traci are not able to break the > security mode tanks to your email. > > > > > > > > Maybe my question is stupid but do you know where we can modify the > settings "speed mode" or "lane change mode" in sumo roots? > > > > > > > > Best Regards and thanks a lot, > > > > > > > > M-Ange > > > > > > > > > > > > > > > > > > > > > > > > 2014-09-02 17:35 GMT+02:00 Marcus Müller <[email protected] > <mailto:[email protected]> >: > > > > Hi Marie, > > > > > > > > Good to hear that there is someone working on this topic too. > > > > > > > > As far as I understand right now, the different models in SUMO, here > especially the car following model and maybe the junction model, are > designed to avoid such dangerous situations. (As we would do as real > drivers as well). > > > > I guess the maximum speed parameters doesn't overwrite such security > critical decisions like breaking at a traffic light. > > > > > > > > I think there are other settings, like "speed mode" and "lane chnage > mode" highlighted by Jakob before, which can be used to achieve the desired > red-light behaviour. > > > > > > > > I will keep you updated with my latest results on that. > > > > > > > > Regards, > > > > > > > > Marcus > > > > > > > > > > > > > > > > > > Am 02.09.2014 um 17:10 schrieb Marie-Ange Lebre < > [email protected] <mailto:[email protected]> >: > > > > Hello, > > > > I try also to push cars to ignore traffic lights. I use > traci.vehicle.setSpeed(vehID, Maxspeed) to allow cars to have the maximum > allowed speed ; but in the simulation, car doesn't take into account my > command and stops at the yellow light. > > > > Can you suggest an idea ? > > > > Regards and thanks a lot, > > > > M.Ange > > > > > > > > 2014-09-01 8:57 GMT+02:00 Jakob Erdmann <[email protected] > <mailto:[email protected]> >: > > > > Hello, > > see <http://sumo-sim.org/wiki/TraCI/Change_Vehicle_State> > > http://sumo-sim.org/wiki/TraCI/Change_Vehicle_State > > The commands 'speed mode' and 'lane change mode' have some > > safety-relevant flags. > > You can only set these via TraCI at the moment. > > regards, > > Jakob > > > > > > > > 2014-08-31 23:32 GMT+02:00 Marcus Müller < <mailto: > [email protected]> [email protected]>: > > > >> Hi all, > >> > >> > >> > >> Is there a way to make cars ignore traffic lights or other rules to > >> force “accident like behavior” ? > >> > >> What do you think, would be the best approach ? > >> > >> > >> > >> Regards and many thanks in advance, > >> > >> > >> > >> marcus > >> > >> > >> --------------------------------------------------------------------- > >> --------- > >> Slashdot TV. > >> Video for Nerds. Stuff that matters. > >> <http://tv.slashdot.org/> http://tv.slashdot.org/ > >> _______________________________________________ > >> sumo-user mailing list > >> <mailto:[email protected]> > [email protected] > >> <https://lists.sourceforge.net/lists/listinfo/sumo-user> > >> https://lists.sourceforge.net/lists/listinfo/sumo-user > >> > > ---------------------------------------------------------------------- > > -------- > > Slashdot TV. > > Video for Nerds. Stuff that matters. > > <http://tv.slashdot.org/> http://tv.slashdot.org/ > > _______________________________________________ > > sumo-user mailing list > > <mailto:[email protected]> > [email protected] > > <https://lists.sourceforge.net/lists/listinfo/sumo-user> > > https://lists.sourceforge.net/lists/listinfo/sumo-user > > > > > > > > > > > > ---------------------------------------------------------------------- > > -------- > > Slashdot TV. > > Video for Nerds. Stuff that matters. > > http://tv.slashdot.org/ > > _______________________________________________ > > sumo-user mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/sumo-user > > > > > > ------------------------------------------------------------------------------ > Slashdot TV. > Video for Nerds. Stuff that matters. > http://tv.slashdot.org/ > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user > > ------------------------------------------------------------------------------ Slashdot TV. Video for Nerds. Stuff that matters. http://tv.slashdot.org/ _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
