Description, uses and performance of photoelectric automatic highway traffic recorders; installation of traffic recorder; difficulties overcome in obtaining satisfactory performance; improved maintenance of machines; counter records used in expanding manual count data; cost of operating counters; attempts to develop portable counters. (See also Pub Roads v 19 n 3 May 1938 p 37-51)
Automatic recorder for counting highway traffic
Engineering
Engineering ; 146 , n 3787
1938
Aufsatz (Zeitschrift)
Englisch
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Automatic recorder for counting highway traffic
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