Relative hazards at railroad grade crossings on state and federal-aid highway systems, 1954
By: Oregon State Highway Department, Traffic Engineering Division, Planning Survey Section.
Contributors: United States. Bureau of Public Roads.
Series: Technical report / Oregon State Highway Department -- no. 56-3.; Technical report (Oregon. State Highway Dept.) -- no. 56-3.
Publisher: Oregon State Highway Commission
Published: 1956
Place of publication: Salem, Or
Language: eng
Number of pages: 109
Subjects: Highway-railroad grade crossings -- Oregon.; Railroads -- Oregon -- Crossings.; Railroad accidents -- Oregon -- Statistics.
Genres: Statistics.
Notes: "Survey conducted in cooperation with the U.S. Department of Commerce, Bureau of Public Roads."

"April, 1956."