FREE FLOW

Click intersection switch its light · Shift‑click select only · Click road close / reopen · Space pause

GRIDLOCK CITY

car‑following traffic simulation

Simulation 00:00

CARS ON ROAD0

THROUGHPUT0/min

AVG WAIT0.0s

AVG SPEED0km/h

throughputcarsavg waitqueue outside: 0

Spawn rate 110 cars/min

East–west streets carry ~60% more demand than north–south, so equal signal splits are not optimal.

N–S E–W

N–S green 18 s E–W green 18 s

Keys: Space pause · 1–5 speed. Red haze on a lane marks a standing queue; “+N” badges are cars that can't even enter the map.