Baidu · 2018
Live road-network color-coded by realtime average speed; supports per-city congestion analytics.
Real-time AMap traffic tiles · Beijing · refreshed every 60s from the network.
City-scale realtime traffic for Baidu Maps — every road segment colored by realtime average speed, refreshed at 1 Hz from the backend. Used by municipal traffic ops centers.
Procedural ring + radial + grid network. Each segment has its own speed that drifts; the color ramp (jam / slow / free) and a moving particle communicate flow direction.