Relative hazards at railroad grade crossings on state and federal-aid highway systems, 1957
By: Oregon State Highway Department, Traffic Engineering Division, Planning Survey Section [principal author, William J. Byars].
Contributors: Oregon. State Highway Dept.
Series: Technical report / Oregon State Highway Department -- no. 59-5.; Technical report (Oregon. State Highway Dept.) -- no. 59-5.
Publisher: Oregon State Highway Commission
Published: 1959
Place of publication: Salem
Language: eng
Number of pages: 111
Subjects: Railroads -- Crossings.
Notes: "Survey conducted in cooperation with the U.S. Department of Commerce, Bureau of Public Roads".