Hey thanks a lot! Glad you enjoyed!
Yes it can be a little annoying when the vehicles sync up like that.
If you are rotating a tile that a vehicle is planning to drive onto, the vehicle’s 3 second timer will reset. Also, if you rotate a tile that a vehicle is on, it will pause its timer until the tile stops rotating. So I believe these are the main cause of them syncing.
I think I would’ve liked to remove the ability of vehicles entering the same tile. Either by crashing or just waiting and causing traffic or something.