Publication contains tabulation of traffic density counts made in 1940 at 100 key stations located at controlling points on roads and highways through state of Oregon; locations of stations are shown on map; traffic density for 1940 compared with preceding years; tables showing relationship of annual daily traffic volumes for years 1936-7, 1938, 1939 and 1940 given in appendix.
Traffic density tables for 1940
Oregon State Highway Commission -- Tech Report
1941
192 pages
Report
Englisch
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Traffic density tables for 1942
Engineering Index Backfile | 1943
|Cincinnati traffic survey. Report 1940
Engineering Index Backfile | 1940