Re: [sumo-user] Lateral acceleration

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Lateral acceleration and deceleration in the sublane model is subject to lcAccelLat (https://sumo.dlr.de/docs/Simulation/SublaneModel.html, https://sumo.dlr.de/docs/Definition_of_Vehicles%2C_Vehicle_Types%2C_and_Routes.html#lane-changing_models).

This means vehicles will not always make use of full maxSpeedLat for small lateral movements since they have to be at lateral speed 0 at the end of the movement.

Am Mi., 9. Juli 2025 um 19:27 Uhr schrieb Ni Ying-Chuan via sumo-user <sumo-user@xxxxxxxxxxx>:

Dear SUMO team,

 

I am developing a new bicycle simulation model through TraCI by building upon the current bicycle simulation function in SUMO.

For lateral movements in the sublane setup, I can only see one parameter “maxSpeedLat” (default 1 m/s).

How about the lateral acceleration?

In my testing using the command “traci.vehicle.changeSublane”, I noticed that the distance moved every time step (0.25 s) is different, meaning it is not a constant speed movement.

Then how is it being computed dynamically?

 

Thanks in advance for answering.

 

Kind regards,

Ying-Chuan Ni

 

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