American Association of State Highway Officials, & National Conference on Street and Highway Safety (1937). Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety. https://rosap.ntl.bts.gov/view/dot/75590
American Association of State Highway Officials and National Conference on Street and Highway Safety. Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety, 1937. https://rosap.ntl.bts.gov/view/dot/75590.
American Association of State Highway Officials, et al. Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety, 1937, ROSA P. https://rosap.ntl.bts.gov/view/dot/75590.
This manual is a revision and consolidation of two previous manuals- that of the American Association of State Highway Officials for rural highways, and that prepared by the American Engineering Council for the National Conference on Street and Highway Safety to apply to city streets-and is the work of a Joint Committee on Uniform Traffic Control Devices appointed jointly by the American Association of State Highway Officials and the National Conference on Street and Highway Safety, pursuant to resolutions passed by the Executive Committee of the Conference on June 23, 1931, and by the Association at its annual meeting on September 28, 1931. The first meeting of the Joint Committee was held in Washington on March 24, 1932.
American Association of State Highway Officials, & National Conference on Street and Highway Safety (1937). Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety. https://rosap.ntl.bts.gov/view/dot/75590
American Association of State Highway Officials and National Conference on Street and Highway Safety. Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety, 1937. https://rosap.ntl.bts.gov/view/dot/75590.
American Association of State Highway Officials, et al. Manual on Uniform Traffic Control Devices for Streets and Highways. National Conference on Street and Highway Safety, 1937, ROSA P. https://rosap.ntl.bts.gov/view/dot/75590.
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