Portable electronic traffic event recorder

摘要

Apparatus for recording traffic events occurring at a variety of vehicular traffic passageways, such apparatus including a portable housing unit having a keyboard presenting a predetermined pattern of pushbutton switches. A plurality of interchangeable display boards, each having different vehicular traffic patterns and symbolic traffic events displayed thereon, are selectively mounted over the keyboard, and each symbolic traffic even coincides with a particular pushbutton when so mounted. Choice of a suitable display board corresponding to a particular intersection and a desired type of traffic count allows a traffic checker to complete a traffic count by merely pressing a push-button switch corresponding to each observed traffic event and its location. The portable housing includes a data processor which places a switch- and time-identified signal in its memory for each pushbutton depression and may later be plugged into a master computer for abstraction, processing, and tabulated print-out of the recorded data according to the pre-programming of the master computer.