SALISBURY TWP., Pa. — The famous phrase “Gentlemen, start your engines!” may bring to mind the roar of race cars at the Indianapolis Motor Speedway.
The device in question was ENRADD, short for Electronic Non-Radar Device, a system used by municipal police to monitor vehicle speed.
It calculates how fast a car is traveling by measuring the time it takes to pass between two infrared beams set across the roadway…