Free lateral movement is possible with the sublane model (regardless of
lane markings). See https://sumo.dlr.de/docs/Simulation/SublaneModel.html
It is still recommended to retain turning lanes for better organization of
turning movements.

Am Mo., 16. Jan. 2023 um 06:03 Uhr schrieb Chen Di <[email protected]>:

> Hello,
>
> I have a special need on road lateral spaces and would like to check if
> this is possible in sumo:
>
> By default, the lateral spaces are divided by lanes with specified lane
> width. In my special case, I would like vehicles to travel freely
> laterally, without having to follow lane markings. So I am wondering
> whether this can be realized in sumo, and if so, how to achieve this?
>
> As a initial thought on solutions, I thought of removing lane markings. In
> addition to this, I guess the default car-following/lane change models need
> to be removed as well. Otherwise, vehicles will still following each other
> as if the lane markings is there. If this is correct, could you also
> provide some information on how to remove lane markings and modify the
> built-in car-following models?
>
> Thank you!
>
> Best,
> Di
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