Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lighting problems and solutions of tunnel, built for British Columbia Toll Highways to provide crossing of Fraser River near Vancouver; 300 ft of louvers at entrance and 180 ft at exit provide for smooth transition between outside daylight and tunnel entrance light; as driver becomes adapted through tunnel, he encounters gradual decrease of illumination to 10 ft-c 700 ft from entrance; after complete adaptation to night driving, level is 5 ft-c; process is reversed in trip to exit.
Lighting problems and solutions of tunnel, built for British Columbia Toll Highways to provide crossing of Fraser River near Vancouver; 300 ft of louvers at entrance and 180 ft at exit provide for smooth transition between outside daylight and tunnel entrance light; as driver becomes adapted through tunnel, he encounters gradual decrease of illumination to 10 ft-c 700 ft from entrance; after complete adaptation to night driving, level is 5 ft-c; process is reversed in trip to exit.
Deas island tunnel
Illum Eng
Haselsteiner, K. (Autor:in)
1960
2 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
| Engineering Index Backfile | 1958
| Engineering Index Backfile | 1958
| Engineering Index Backfile | 1958
Vancouver's Deas Island Tunnel
| Engineering Index Backfile | 1958
Deas island tunnel -- Vehicular trench type tunnel under Fraser River in Canada
Engineering Index Backfile | 1960