Skip to main content
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [List Home]
Re: [sumo-user] Question about lane change reason "urgent" and "speedGain" in SUMO
Correction: The above only pertains to urgent "speedGain" changing.
Other than that: Any strategic change (required for route-following) is urgent. All other reasons are non-urgent.

Am Mi., 18. Juni 2025 um 09:14 Uhr schrieb Jakob Erdmann <namdre.sumo@xxxxxxxxx>:
Urgent lane changing is a recent and still experimental addition to the default laneChangeModel LC2013.
It can be configured with vType attribute lcSpeedGainUrgency and should almost never occur under the default settings.

especially the linked commits:

The behavior of the new attribute is still impacted by
which limits it's usefulness in the situation where it's most needed: leveling high speed differences between lanes, especially at on-ramps.

regards,
Jakob

Am Di., 17. Juni 2025 um 17:55 Uhr schrieb 노치우 via sumo-user <sumo-user@xxxxxxxxxxx>:
Dear SUMO developers and community,

I am currently researching vehicle lane-changing behavior in SUMO. I would like to understand how the "urgent" lane change reason is computed internally. Specifically, what parameters and equations are involved in this decision process?

Additionally, could you please explain the internal logic or formula used to calculate the "speedGain" reason?

I am using SUMO version 1.23.1, and I have reviewed the documentation(Attachments), but further clarification would be very helpful.

Thank you very much for your support.

Best regards,
Chiwoo Roh
--
Chiwoo Roh                                            
M.S. Student in Transportation Research Institute, Ajou University    
_______________________________________________
sumo-user mailing list
sumo-user@xxxxxxxxxxx
To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user

Back to the top