Effects of illumination on operating characteristics of fre-eways / Research Sponsored by the American Association of S-tate Highway officials in Cooperation with the bureau of Pu-blic Roads.
Effects of illumination on operating characteristics of fre-eways / Research Sponsored by the American Association of S-tate Highway officials in Cooperation with the bureau of Pu-blic Roads.
- Washington, D.C. : HRB
- 148 p.
- Report / Highway Research Board ; 60 .