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Re: [sumo-user] SUMO Parameters to Ensure Lane Change
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lcCooperativeSpeed governs speed adjustment by ego vehicle *and* surrounding vehicles. However, with your configuration the vehicles will not change themselves to free up a lane (i.e. moving to the left to help other cars merge at an on-ramp).
Thank you, Jakob, for your suggestion!
I have a follow up question. I have lcCooperative = 0 and lcCooperativeSpeed = 1 for all 5 vehicles in the picture.
Would this parameter setting make white vehicles slow down for red vehicles?
I thought having lcCooperative=0 would not make vehicles (white) slow down for merging vehicles (red). And lcCooperativeSpeed=1 would only govern the speed change of the merging vehicles (red) themselves.
But it seems like (as the first white vehicle is braking in the picture) this setting is making the white vehicles perform cooperative lane change (white vehicles slowing down for red vehicles)?
Thank you so much for your help.
Hello,
the cooperative speed adjustments for laneChanging are disabled when setting lcCooperative=0. If you don't want cooperative lane changing but still want automatic speed adjustments, set vType attribute lcCooperativeSpeed=1
Also, you can configure a more aggressive gap acceptance by setting lcAssertive > 1
regards,
Jakob
Hello,
I'm running a simple scenario where I have 5 vehicles (with exact same parameteres) departing from the left lane and set their route so that they must change to right lane.
I'm letting SUMO decide the merge point. I'd like to ensure all 5 vehicles complete lane change before they reach the end of the roadway.
As shown in the image, 3 vehicles changed their lane in advance but 2 of them could not until the end of the lane where they got stuck and waited for the next gap.
This makes a perfect sense since those 5 vehicles are traveling in a group. But we are trying to avoid vehicles getting stuck at the end of the lane.
I was wondering if there would be parameters I can change to ensure these vehicles change lane before the end of the lane.
I've tried with high values of lcStrategic and high values of lcSpeedgain but was not successful.
Are there parameters that make the vehicles adjust their speed to search for merging gap?
My team decided that we want lcCooperative=0 for our future scenarios and we don't want to intervene with TraCI since this is our base case (we want SUMO to handle everything).
I apologize for this complication but would really appreciate any suggestions!
Thanks!
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