https://traffic-simulation.de/roundabout.html
Interesting to play with; there are a few layout choices.
Quote
The basis model for the longitudinal dynamics, i.e., accelerations and braking decelerations of the drivers, is the Intelligent-Driver Model (IDM). In the actual simulation, we use a variant of it, the Adaptive Cruise Control Model (ACC Model), see the book Traffic Flow Dynamics, Chapter 11 (it's a free sample chapter).
Wow, thanks for this. I spent way too much time messing around with it. A bit mesmerizing after a while. :spin: