SUMO:How to modify built-in ChangeLane of sumo

I am studying the issue of illegal parking

I encountered a problem. When I set the parkingarea's attribute "on road" is ture to simulate illegal parking, the vehicles coming from behind will detect and change lanes by themselves

But I don't want this, because I want to design the behavior of this part, how can I modify it? Using traci's Changelane cannot change too