Minimum car scanning speed

Therefore, the minimum scanning speed should be one that provides viewing at least two or, for greater reliability, three binary inputs coming from the car of the minimum length moving at maximum speed, the length of the car instead of the width of the detector loop to take equal to 20 foot (6096 mm) , and the speed of the car is 90 miles (144 kmh), then the minimum viewing speed should be approximately 20 views.