[sumo-user] GitHub project moved
Dear SUMO friends and users, yesterday we moved our GitHub source code repository and issue tracking into the Eclipse organization at GitHub. The new URL is https://github.com/eclipse/sumo. Redirects are in place so most of the old links should still work. Everyone who did a git clone for the old repository should do a new clone from the new URL, because the move also involved some changes in the project which cannot be resolved by a simple merge. If you have local changes / branches or forks which might need extra attention, you can also try to follow the instructions here: https://wiki.eclipse.org/GitHub#End_User_required_actions. If you have any questions, feel free to ask. Best regards, Michael (for the SUMO team) signature.asc Description: OpenPGP digital signature ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] A question about timestep and tau
Hello everyone, When I output the tripinfo, it says waitSteps= an integer value. How can I get this or the total waiting time for each vehicle in seconds? Also, how can I calculate a queue length? What is the concept of time Step? when I generate a route file with 12 vehicles departing at the same time step but in different time frame, such as the first vehicle departs at 0 seconds, the second at 3rd second, the third one in 6th second but they all are departing at the same time step. Here, the time step in 9 seconds. 10 minutes later, there are 5 vehicles departing at the same time step and the time step there becomes 5 seconds. What can I make of time step if I want to calculate the waiting time at an intersection? Also, any ideas on what does tau trigger? what file can I find it's source code and what functions are related to it? I want to simulate different perception-reaction times (0.5 second, 1 second, 2 seconds), How should I go for it? Thank you, - Tariq R Rahimi Graduate Student ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Problem with TAPAS Cologne simulation (URGENT)
Hello, the TAPASCologne scenario is in pretty bad shape regarding traffic lights and route assignment. To compensate for the massive traffic jams that would otherwise occur in scenario version 0.24.0, the option --scale 0.3 is used in the sumo configuration to reduce the traffic demand by 70%. You can download an updated version of the scenario that uses adaptive traffic lights and better (but slower) traffic assignment: https://sourceforge.net/projects/sumo/files/traffic_data/scenarios/TAPASCologne/TAPASCologne-0.32.0.7z/download This scenario version runs 100% of the traffic demand. The network still contains many errors in regard to junction modelling and traffic light coordination. Thus, there is a lot of jamming and the resulting travel times should not be taken at face value. regards, Jakob 2018-04-09 5:22 GMT+02:00 Abeer Hakeem via sumo-user < sumo-u...@lists.sourceforge.net>: > Hello Sumo users, > > > I'm using TAPAS cologne routes in the 6 to 8 XML file in my research > experiments. However, I noticed that not all the vehicles depart and run > although they are loaded onto the network. Also, a large group of vehicles > arrive although they do not depart and run. Further, there are many of > insertion-backlogged vehicles. > > > I would like all the vehicles to be loaded and running so I can test them > in my experiments. Unfortunately, I don't know where the problem is but do > have any recommendation to fix this problem? > > > Thank you in advance. > > > Best regards, > I. Abeer M. Hakim > > Lecturer > > Information Technology??Department > Faculty of Computing and Information Technology > King AbdulazizUniversity > > -- > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > ___ > sumo-user mailing list > sumo-u...@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/sumo-user > ___ > sumo-user mailing list > sumo-user@eclipse.org > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://dev.eclipse.org/mailman/listinfo/sumo-user > ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Statistics on researches by SUMO
Hallo, I would like to cite statistics on the approximate number of researches or citations in connection with SUMO. This information is it available ? Thank you, François -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ sumo-user mailing list sumo-u...@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/sumo-user ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Using flows after loading a simulation state
Great, thank you so much for fixing it. I will try it out soon! Von: Jakob Erdmann Gesendet: Montag, 9. April 2018 12:43 An: Jakob Kaths ; Sumo project User discussions Betreff: Re: [sumo-user] Using flows after loading a simulation state Hello Jakob, the aforementioned bug is fixed in the latest development version. When loading simulation state that contains flows, make sure to load the original route files that were used when saving the state. You do not need to manage begin and end time as this is handled by sumo. Just define your flow as regards, Jakob 2018-04-08 21:53 GMT+02:00 Jakob Erdmann : Hello Jakob, yes, this is a bug (https://github.com/DLR-TS/sumo/issues/3971). It should not be necessary to load flows again after saving. Thank you for bringing this to my attention. regards, Jakob 2018-04-06 13:20 GMT+02:00 Jakob Kaths : Hello everybody, I’m already bothering you with my next question. I tried creating a saved simulation state and reloading it afterwards, which works in principle, but it seems I can’t use flows afterwards anymore, but would have to define every vehicle explicitly. Is that correct? A part of my demand definition looks as follows: This would be before saving the state: And this after: So basically, I got the same flows again with a different name and create more vehicles after the state is loaded. However, I receive an error message that the first vehicle with the ID South_to_North_Car_continuous.0 has no valid route. Is this a bug or is it simply not possible to create flows after the simulation has already begun? Thanks Jakob ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] A question about timestep and tau
Hello, The value of waitSteps counts the number of simulation steps in which a vehicle was waiting. So if your vehicle waits for 3 seconds and you simulation with --step-length 0.2 that would be 15 waitSteps. In the latest development version, the attribute waitSteps is replaced with waitingTime which is measured in seconds. ( http://sumo.dlr.de/wiki/ChangeLog#Git_master). The value of tau determines the desired time-headway between successive vehicles. The exact usage of this value depends on the car following model (see http://sumo.dlr.de/wiki/Definition_of_Vehicles,_Vehicle_Types,_and_Routes#Car-Following_Models ) To model different perception-reaction times, see http://sumo.dlr.de/wiki/Car-Following-Models#Model_Parameters regards, Jakob 2018-04-10 2:50 GMT+02:00 Rahimi, Tariq Rahim < tariqrahim.rah...@rockets.utoledo.edu>: > Hello everyone, > > > When I output the tripinfo, it says waitSteps= an integer value. How can I > get this or the total waiting time for each vehicle in seconds? Also, how > can I calculate a queue length? > > > What is the concept of time Step? when I generate a route file with 12 > vehicles departing at the same time step but in different time frame, such > as the first vehicle departs at 0 seconds, the second at 3rd second, the > third one in 6th second but they all are departing at the same time step. > Here, the time step in 9 seconds. 10 minutes later, there are 5 vehicles > departing at the same time step and the time step there becomes 5 seconds. > > > What can I make of time step if I want to calculate the waiting time at an > intersection? > > > Also, any ideas on what does tau trigger? what file can I find it's source > code and what functions are related to it? I want to simulate different > perception-reaction times (0.5 second, 1 second, 2 seconds), How should I > go for it? > > > Thank you, > > > * - Tariq R Rahimi* > Graduate Student > > ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://dev.eclipse.org/mailman/listinfo/sumo-user
