🚦 Phantom Jams, Roundabouts and Signals: Intelligent Driver Traffic Lab

Cars driven by the Intelligent Driver Model circle a ring road, cross a signalised junction and enter a roundabout in a Blender-built 3D city. Watch a phantom jam grow from nothing, compare Webster-timed signals with a gap-acceptance roundabout under the same demand, and test the stability criterion, Rankine-Hugoniot jam speed, Webster delay and Cowan capacity formulas against the simulation.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install