Municipal traffic signal ai emergency vehicle preemption systems represent a critical public safety advancement for urban and suburban transportation corridors. Emergency medical services (EMS), fire departments, and law enforcement agencies face growing intersection congestion that delays life-saving response times. Intersection collisions involving emergency apparatus responding to priority calls remain one of the leading causes of on-duty firefighter and paramedic fatalities.

For decades, cities relied on legacy line-of-sight optical strobe sensors or high-frequency acoustic microphones mounted on traffic signal mast arms. In modern urban environments, these legacy systems fail consistently.…