A new adaptive control traffic signal system to ease congestion at two of the city’s busiest intersections — Phra Khanong and Sukhumvit 71 (Pridi Banomyong) — has already halved average waiting times to six minutes, according to the Bangkok Metropolitan Administration (BMA). The system adjusts traffic signals in real time based on vehicle flow, said Wissanu Subsompon, a Bangkok deputy governor, who inspected the system at the Sukhumvit 71 intersection on Wednesday. “With adaptive control, signal timing adjusts dynamically to actual conditions,” he said. The adaptive control system uses CCTV cameras to detect and count vehicles, with data processed to automatically adjust green and red light durations in real time and synchronise signals across directions. “Bangkok is applying science, technology and data to traffic management to support police operations,” Mr Wissanu said.

Source: Bangkok Post February 05, 2026 11:06 UTC