Traffic safety monitoring apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 19, 1991
Grant Date -
N/A
app pub date -
Apr 27, 1989
filing date -
Apr 27, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A traffic monitoring system comprising apparatus for establishing a pair of precisely spaced radiation beams in association with a thoroughfare, whereby passage of a vehicle along the thoroughfare interrupts the radiation beams, apparatus for sending interruption of the radiation beams and providing output indications of vehicle speed and separation between adjacent vehicles (headway) and apparatus for photographing vehicles fulfilling predetermined criteria including photography trigger apparatus which is responsive to the sensed vehicle speed of the vehicle being photographed for providing a consistently positioned photographic record of the vehicle, irrespective of vehicle speed.
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