Vulnerable-road-user (VRU) detection systems use radar, cameras and sensors to warn the driver — and only alert when a person is genuinely in danger. They are deployed on buses and trucks across Europe and Singapore today.
Radar and camera sensors on each side of the vehicle continuously scan the blind spot. When a pedestrian or cyclist enters a danger zone during a turn, the system warns the driver inside the cab — quietly — and can brake automatically. No alarm is broadcast to an entire neighbourhood.
Alerts fire only when a person is actually detected in the danger zone — not at every turn, stop and red light.
The warning reaches the one person who can act — the driver — instead of broadcasting at residents who can do nothing about it.
Radar-based systems function in darkness, fog, rain and snow, when a beeping alarm and a human glance both fail.
Bosch, WABCO, and dedicated bus systems are in commercial service across Europe and Singapore — this is mature, off-the-shelf technology.
Buses drive themselves in China. Cars drive themselves in the United States. Yet in Taiwan, human-driven buses still need to beep at everyone, all the time. The humane alternative already ships on commercial vehicles worldwide.
Replace the blanket continuous-beep mandate with a requirement for VRU detection on heavy vehicles. Keep an audible warning if you must — but make it trigger only on real detected risk, and direct it at the driver, not at the entire street.
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