Traffic

Where do phantom jams come from, and does an actuated signal beat a fixed timer?

Input: Vehicle density, IDM parameters, arrival rate, controller
Output: Ring-road space–time diagram, intersection delay
Demos: 2 · all run in the browser

Loading engine

Drag to orbit · scroll to zoom

Free flow
Slow
Jammed

Built with Ring road (IDM + lane change)

Two-lane ring with the Intelligent Driver Model and MOBIL-style lane changes; raise density or perturb one car and watch the jam wave travel backwards in the space–time diagram.

Canvas 2DRasterized plots and overlays
SUMOReference traffic simulator