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This paper discusses the need and de-velopment of equipment to detect wrong way entries into freeway off ramps. The major steps covered are:
* History of development
* Design and application of camera
* Results of information gathered
A description of the logic used in construction of the camera is also discussed.
Richard P. Weaver
"Hidden Cameras To Detect Wrong Way Driving On Freeway Ramps", Proc. SPIE 0030, Photo-Optical Instrumentation: A Tool for Solving Traffic and Highway Engineering Problems, (1 May 1972); https://doi.org/10.1117/12.953563
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Richard P. Weaver, "Hidden Cameras To Detect Wrong Way Driving On Freeway Ramps," Proc. SPIE 0030, Photo-Optical Instrumentation: A Tool for Solving Traffic and Highway Engineering Problems, (1 May 1972); https://doi.org/10.1117/12.953563