[sumo-user] (no subject)
Dear all, I have configured an on-ramp merge but am regularly seeing collisions on it as well as an odd phenomenon where the vehicles move incredibly slowly on the junction, I've tried both: 1. setting speed mode to make sure it's set to 25 2. increasing the length of the merge section Is there anything else that could be causing it? I can provide a picture if it's helpful. Thanks! ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Ballistic Integration and Traci
Thanks so much Jakob! On Thu, Mar 19, 2020 at 12:02 AM Jakob Erdmann wrote: > Hello, > the integration method (euler/ballistic) is a global feature and will work > as set in the options when using the vehicle.slowDown command. > regards, > Jakob > > Am Mi., 18. März 2020 um 19:59 Uhr schrieb Eugene Vinitsky < > evinit...@berkeley.edu>: > >> Dear all, >> >> I want to use the ballistic integrator but I control the vehicles through >> traci using the slowDown command. Is it possible to pass accelerations >> instead so that the appropriate integrator is used or is the integrator >> still used even if I use the slowDown command? >> >> Thanks, >> >> Eugene >> ___ >> sumo-user mailing list >> sumo-user@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > ___ > sumo-user mailing list > sumo-user@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Not slowing down at intersections
Dear all, We have a four way junction where every side has a right, left and straight connection. All the vehicles have speedMode 31 and the node type is set to AllWayStop. However, vehicles making a right turn sometimes still speed through the junction without stopping. Does anyone have any idea what might be happening? Thanks! Eugene ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Boundary Conditions + Acceleration
Thank you so much Jakob! Eugene On Wed, Mar 25, 2020 at 1:44 PM Jakob Erdmann wrote: > 1) departSpeed="desired" should never jam the inflow. Combine this with > departPos="last" for maximum flow. Add departLane="best" to get a good lane > distribution on multi-lane roads > 2) traci.vehicle.getAccel returns maximum acceleration which is desired by > most cfmodels as long as the vehicle is below its desired speed (speedLimit > * individualSpeedFactor) > > regards, > Jakob > > Am Mi., 25. März 2020 um 18:08 Uhr schrieb Eugene Vinitsky < > evinit...@berkeley.edu>: > >> Dear all, >> >> I have two questions. I have a network where congestion forms at the >> inflow and never resolves. I played around with most of the departSpeed >> options but none of them seem to resolve it. Do you have any suggestions >> for what might help here? I'm trying to get the congestion to travel back >> and out of the network. >> >> Question 2: Is there a traci command that will return the desired >> acceleration of a vehicle? >> >> Thank you! >> >> Eugene >> ___ >> sumo-user mailing list >> sumo-user@eclipse.org >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> > ___ > sumo-user mailing list > sumo-user@eclipse.org > To unsubscribe from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user > ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Boundary Conditions + Acceleration
Dear all, I have two questions. I have a network where congestion forms at the inflow and never resolves. I played around with most of the departSpeed options but none of them seem to resolve it. Do you have any suggestions for what might help here? I'm trying to get the congestion to travel back and out of the network. Question 2: Is there a traci command that will return the desired acceleration of a vehicle? Thank you! Eugene ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Ballistic Integration and Traci
Dear all, I want to use the ballistic integrator but I control the vehicles through traci using the slowDown command. Is it possible to pass accelerations instead so that the appropriate integrator is used or is the integrator still used even if I use the slowDown command? Thanks, Eugene ___ sumo-user mailing list sumo-user@eclipse.org To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] why sumo-web3d does not show cars and road signs on the 3D world
Hi Jakob, Absolutely! I was just cleaning it up. It's now here: https://github.com/sidewalklabs/sumo-web3d/pull/13 Eugene On Wed, Nov 14, 2018 at 3:15 AM Jakob Erdmann wrote: > Hi Eugene, > Could you issue a pull request against > https://github.com/sidewalklabs/sumo-web3d, referencing > https://github.com/sidewalklabs/sumo-web3d/issues/10 > ? > > > Am Mi., 14. Nov. 2018 um 09:19 Uhr schrieb Eugene Vinitsky < > vinitsky.eug...@gmail.com>: > >> Hi, >> >> If you have any version past 0.32.0 sumo web3d does not work due to >> changes in how subscriptions are called. The change is relatively small, >> just change the subscription calls so that they are passed the >> vehicle/traffic light ids. >> >> Source: I just implemented a working version for 1.0.1 this evening. >> >> ___ > sumo-user mailing list > sumo-user@eclipse.org > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.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://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Sugiyama Experiment + Krauss Model
Dear SUMO users/developers, I've been using SUMO to run simulations of the Sugiyama experiment; 22 human drivers on a circular 230 meter ring should lead to propagation of waves. When I use the IDM model in SUMO the waves occur; however the Krauss model with default parameters (which I believe is the intended model to be used in SUMO) does not demonstrate waves but immediately stabilizes. Is this intended behavior? Sincerely, Eugene ___ 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://www.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Sugiyama Experiment + Krauss Model
Hi Jakob, Thanks for the extremely thorough response! We were considering switching to Krauss because of the concerns with how IDM interacted with the default lane changing model; if this is now (at least partially) addressed we're going to happily continue using IDM. Sincerely, Eugene On Mon, Nov 12, 2018 at 11:32 AM Jakob Erdmann wrote: > Hello, > the lack of jam wave formation with default parameters is a known issue of > the Krauss model. The waves do occur when increasing the sigma parameter > from its default of 0.5 to at ~0.7. However, the value of 0.5 was chosen > based on other calibration scenarios. > This is by no means the only issue of the Krauss model. By design it uses > a very flat acceleration/deceleration profile which has prompted several > users to use the IDM model instead. > However, until quite recently (1.0.1), the IDM model (or rather our > implementation thereof) had known issues from the interaction with our lane > changing models which discouraged us from using it as the default car > following model. > There are probably other reasons why we're still holding on to Krauss: > - literally thousands of tests for the Krauss model that would have to be > re-evaluated with another default model > - lots of experience with this model and all it's attendant issues > - the interested user is free to select the model anyway > > In short, I'm not happy with the lack of jam wave formation but > alternative parameter settings would cause other problems. > I honestly cannot tell you yet how the default model or it's default > parameters will change in the next versions. > Among other things, we have some ideas on modelling imperfect driving > which would lead to a redesign of the default model. > > regards, > Jakob > > > Am Mo., 12. Nov. 2018 um 21:25 Uhr schrieb Eugene Vinitsky < > vinitsky.eug...@gmail.com>: > >> Dear SUMO users/developers, >> >> I've been using SUMO to run simulations of the Sugiyama experiment; 22 >> human drivers on a circular 230 meter ring should lead to propagation of >> waves. When I use the IDM model in SUMO the waves occur; however the Krauss >> model with default parameters (which I believe is the intended model to be >> used in SUMO) does not demonstrate waves but immediately stabilizes. Is >> this intended behavior? >> >> Sincerely, >> >> Eugene >> >> ___ >> sumo-user mailing list >> sumo-user@eclipse.org >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://www.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://www.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://www.eclipse.org/mailman/listinfo/sumo-user
Re: [sumo-user] Error: tcpip::Storage::readIsSafe: want to read 4 bytes from Storage, but only 3 remaining
Thank you! Eugene On Mon, Nov 12, 2018 at 11:35 AM Jakob Erdmann wrote: > Please see > http://sumo.dlr.de/wiki/FAQ#Error:_tcpip::Storage::readIsSafe:_want_to_read_8_bytes_from_Storage.2C_but_only_4_remaining > also, http://sumo.dlr.de/wiki/ChangeLog#Other_3 (TraCI section) > > Am Mo., 12. Nov. 2018 um 22:06 Uhr schrieb Eugene Vinitsky < > vinitsky.eug...@gmail.com>: > >> After upgrading my version of SUMO >> to 439afd19a3cd9efcf1ed3124d3647db03976d203 I now recieve the following >> error when calling traci_connection.simulationStep(): >> Error: tcpip::Storage::readIsSafe: want to read 4 bytes from Storage, but >> only 3 remaining >> >> Any thoughts on what might be happening here? >> >> Sincerely, >> >> Eugene Vinitsky >> > ___ >> sumo-user mailing list >> sumo-user@eclipse.org >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://www.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://www.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://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Error: tcpip::Storage::readIsSafe: want to read 4 bytes from Storage, but only 3 remaining
After upgrading my version of SUMO to 439afd19a3cd9efcf1ed3124d3647db03976d203 I now recieve the following error when calling traci_connection.simulationStep(): Error: tcpip::Storage::readIsSafe: want to read 4 bytes from Storage, but only 3 remaining Any thoughts on what might be happening here? Sincerely, Eugene Vinitsky ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Sugiyama Experiment + Krauss Model
Dear SUMO users/developers, I've been using SUMO to run simulations of the Sugiyama experiment; 22 human drivers on a circular 230 meter ring should lead to propagation of waves. When I use the IDM model in SUMO the waves occur; however the Krauss model with default parameters (which I believe is the intended model to be used in SUMO) does not demonstrate waves but immediately stabilizes. Is this intended behavior? Sincerely, Eugene ___ sumo-user mailing list sumo-user@eclipse.org To change your delivery options, retrieve your password, or unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
[sumo-user] Negative Departure Time
Hello, After approximately 35 steps of our system, we get an error "traci.exceptions.TraCIException: Negative departure time in the definition of 'idm_0'. Is there some reason that self._connection.simulation.getCurrentTime() could be turning negative? Eugene -- 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] Automated Intersections
Hello, I am trying to use SUMO to control an automated intersection. If I set the priorities of a node that two lanes pass through to be equal, one of the lanes yields to the other. If I set the mode to be "unregulated" the cars wind up passing through each other. Does anyone know what mode might be best for this purpose or do I need to write my own code to detect crashes? Thank you, Eugene Vinitsky -- 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] Set traffic light error
Hello, I am trying to control a grid of traffic lights in which they are
named "center0", "center1", etc.
I run the command
self.traci_connection.trafficlights.setRedYellowGreenState('center0', 'GyGy')
I then get the error: Mismatching phase size in tls 'center0', program
'online'.ACT
If someone can see what I'm doing wrong, that'd be much appreciated.
Thanks!
Eugene Vinitsky
--
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