See here: https://www.beamng.com/resources/running-late-again-gull.7164/ I really wanted to make my own traffic scenario in West Coast USA, and this is the result. There are two modes, up to 5 AI vehicles, over 50 trigger points, and over 500 lines of code! If you have great specs in your PC, you should be able to play this flawlessly with minimal frame drops. I can't guarantee 60 FPS, though. While there seems to be no fatal bugs, I have some minor bugs to take care of. The police can be somewhat too trigger happy in certain cases; if they get damaged by driving in traffic, they'll blame you and chase you. Also, traffic can be extra stupid; I fixed some of the AI paths before releasing this, but they will still do U-turns and stuff like that in certain areas. East Coast USA was way easier... More insights coming soon!