Technically, there should never be a lane-end warning if the zipper
connections are set up correctly. It's hard to tell what's going on without
observng running traci code.
Please put together a minimal example that triggers the error message a
package the scenario files together with a traci-traceFile:
https://sumo.sourceforge.net/docs/TraCI/Interfacing_TraCI_from_Python.html#generating_a_log_of_all_traci_commands

Am So., 29. Jan. 2023 um 02:06 Uhr schrieb Jordan Poots <
[email protected]>:

> Hello,
>
> I am using a zipper lane driven by TraCI controlled vehicles. This zipper
> lane reduces three lanes to two. The lane changes are continuous. The TraCI
> vehicles can merge at any point on the zipper lane or simply follow the
> lane and merge as it ends. Once the vehicles have merged, control of them
> is returned to SUMO.
>
> I find when vehicles choose to change lanes late on the zipper lane, they
> have two problems.
>
>    1. Occasionally, they will emergency brake. I receive an error message
>    about the lane ending. I assume this is in reference to either the to or
>    from lane ending as the moving vehicle moves onto the zipper junction
>    during the lane change.
>    2. They occaisonally cross two lanes instead of the intended one and
>    thus end up on the left lane on the reduced side instead of the right.
>
> How might I configure my setup to avoid these issues?
>
> Thanks,
>
> Jordan
>
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