Effects of illumination on operating characteristics of freeways. - American Association of State Highway Officials; U.S. Bureau of Public Roads (Washington, D.C. Highway Research Board, National Research Council, 1968)
"NCHRP project 5-2 FY '63."
"Research sponsored by the American Association of State Highway Officals in cooperation with the Bureau of Public Roads."
Bibliography: p. 109.
Keywords: Roads -- Lighting; Express highways