I would think you're right - the vehicles are Police, Garbage Trucks, Recycling Trucks and Municipal Buses. All the types of Vehicles that don't necessarily stay at their home building.
I attempted to remove the road, as suggested, but the offending vehicles skip on to the next piece, like the regular traffic does. There were also a few trucks stuck in building car parks and removing the building just forced them on to the road.
@BlackjackWidow wrote:
In the future, close a service building and wait until you see all the trucks return and enter their garages before demolishing the building. That should prevent the problem in the future.
I hadn't thought of that. I suppose once the building is closed, the employees aren't going to work with their employment shut down so will return to the garage and go home?
Although, I wasn't entirely to blame because just last night a Giant Lizard walked through my Police Station and Municipal Bus Terminal. I now have 6 Police Cars and TWENTY-FOUR!!! Municipal Buses driving around doing nothing. 😠