Algodoo

Controls: R to put the light on red, G to put the light on Green. Arrow keys for car.

Has a tyre shredding sytem that stops you running a red light, the effect isn't that good, but its my first go at thyme, well, its my first go at Algodoo to be honest. To see the extremely... uncomplex mechanism, move the box saying traffic control cables to the back, the pipe things are for show.

Edit: to get it to work, change the killer in the script menu of the brown box saying AlgoShredder to {scene.my.tyreshred}