Thanks, I do not need to change the links, just the signal at each link independent of other signals at the same junction. I guess what I meant to ask is when we declare type "traffic_light" , by default there are 4 traffic signals or only 1 traffic signal that is declared when net convert is used.
Im assuming it would be possible to invoke JTRouter for generating route files using the python script where traci is used. Do let me know if this assumption is wrong. By dummy nodes, I was referring to the "node generation" per this link http://sourceforge.net/apps/mediawiki/sumo/index.php?title=Tutorials/Quick_Startwhere nodes 911 - 914 are referred to as dummy nodes that are necessary for traffic analysis. Regards, Pooja. On Sunday, December 29, 2013, Michael Behrisch wrote: > Hi, > yes of course you can set the signals via TraCI but you will not be > able to change the connections (the links) itself. > I do not know what you mean by dummy nodes, but yes every edge needs a > start and an end node. > > Best regards, > Michael > > 2013/12/27 Pooja Voladoddi <[email protected] <javascript:;>>: > > Hello, > > > > Thanks for replying. > > > > -- would it not be possible to access individual traffic lights (as in, > each > > signal per link) using getRedYellowGreenState and setRedYellowGreenState > in > > the python traci script for controlling traffic ? > > Or is importing the csv description the only way to go about it ? > > > > > > --are dummy nodes required at the end of each link ? > > > > > > > > Regards, > > Pooja. > > > > On Friday, December 27, 2013, Michael Behrisch wrote: > >> > >> Hi, > >> flow definitions are described here: > >> > >> > http://sumo-sim.org/userdoc/Definition_of_Vehicles,_Vehicle_Types,_and_Routes.html#Repeated_vehicles > >> except that for router input they do not have route childs but from > >> and to attributes like trips. > >> For the traffic lights I think you misunderstood the documentation, > >> there is usually one traffic light logic per junction but it may be > >> one signal per link, see here: > >> http://sumo-sim.org/userdoc/Simulation/Traffic_Lights.html > >> > >> Best regards, > >> Michael > >> > >> 2013/12/26 Pooja Voladoddi <[email protected]>: > >> > (Forgot to send it to the whole group) > >> > > >> > Hello, > >> > > >> > Thanks for your reply. > >> > > >> > 1) how are flow definitions different from trip files (as in what > >> > parameters > >> > are defined in it ? I know the syntax of rou.xml and trips.xml but I > >> > don't > >> > know what goes into flow definitions) . > >> > > >> > 2) any hints /clues on how to provide only one traffic light per > >> > link(/lane) > >> > at a junction instead of one traffic light controlling all the links > >> > (/lanes)? > >> > > >> > Merry Christmas to all. > >> > ----- > >> > > >> > Regards , > >> > Pooja. > >> > > >> > > >> > On Thursday, December 26, 2013, Michael Behrisch wrote: > >> >> > >> >> Hi, > >> >> you omitted the flow definitions in your call to jtrrouter. > >> >> > >> >> Best regards, > >> >> Michael > >> >> > >> >> 2013/12/24 Pooja Voladoddi <[email protected]>: > >> >> > Dummy nodes- > >> >> > > >> >> > In implementing a simple grid-like junction, is it necessary for > >> >> > later > >> >> > versions of SUMO (0.18) to add dummy nodes at the ends of > links/edges > >> >> > ? > >> >> > > >> >> > > >> >> > JTRROUTER - > >> >> > After referring to > >> >> > > http://sumo-sim.org/userdoc/Demand/Routing_by_Turn_Probabilities.html > >> >> > > >> >> > I tried to generate route files like so ----> > >> >> > > >> >> > jtrrouter --turn-ratio-files=trial_one.turns.xml > >> >> > --net-file=trial_one.net.xml --output-file=trial_one.rou.xml > >> >> > > >> >> > however, i am getting an error like this ----> > >> >> > > >> >> > Error: No route input specified. > >> >> > Quitting (on error). > >> >> > > >> >> > -- If i am not wrong, JTRRouter gives an output rou.xml file so > what > >> >> > it > >> >> > does > >> >> > it mean by this error? > >> >> > --Also, i was wondering if i could instead write the routes > >> >> > explicitly > >> >> > using > >> >> > python instead of adding probabilities to make the traffic movement > >> >> > more > >> >> > realistic. > >> >> > > >> >> > > >> >> > One-to-many traffic light control > >> > ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
