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. 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