A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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. (author)
1960
2 pages
Article (Journal)
English
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| 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