After creating the road system, now the traffic system has to be programmed.
First conceptual drawings for the traffic system:
The goal was to create a self-connecting traffic network, which should work for left- and right-hand traffic. Everything went fine until the cars had to drive around corners. But a little bit later (and with some vector calculation) this also works very well.
A view of the transport system in the editor. The red squares and red lines represent the center lines of the street.