The project provides information on current production vehicles concerning repeatability in making measurements of obstructions to visibility and in making measurements of the fields of view through the rear view mirror system. Three vehicles were tested in the program: International Harvester Diesel Tractor Transtar 4300; Ford Econoline Van E-100; and AMC Concord 4-Door Sedan. Each vehicle was tested three times. The tests were conducted as prescribed in the National Highway Traffic Safety Administration's proposed standards on 'Fields of Direct View' (Docket 70-7, Notice 5), and 'Rearview Mirror Systems' (Docket 71-3a, Notice 4). For the rearview mirror systems, only the ambinocular fields of view were measured. In general there was good repeatability on the direct fields of view measurements. Minor difficulties were encountered in positioning some of the mirrors repeatably.
Repeatability of Visibility Tests
1979
245 pages
Report
No indication
English
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