Gizmo Turns Lights Green For Firetrucks; Now Sold On Web
Nov. 16, 2003
Most emergency vehicles -- ambulances, fire trucks and police vehicles -- across the country have it: a system that changes traffic lights green on command, allowing them to whisk through busy intersections during an emergency call
Most emergency vehicles -- ambulances, fire trucks and police vehicles -- across the country have it: a system that changes traffic lights green on command, allowing them to whisk through busy intersections during an emergency call
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