Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Safety Treatment of Roadside Culverts on Low Volume Roads
Current American Association of State Transportation and Highway Officials (AASHTO) criteria for safety-treating fixed roadside hazards suggest that all culverts within a certain clear distance of the edge of the traveled way be shielded by a roadside barrier. This is not necessarily a cost-effective solution for low volume highways. Using a cost-effectiveness model currently recommended by AASHTO, guidelines for safety-treating culverts have been developed for 36 in. diameter pipe, 4 ft x 6 ft (4 ft height x 6 ft width) single box, and 4 ft x 6 ft multi-box (double box) culverts located on low volume, rural highways (average daily traffic less than 20,000). Each culvert design was evaluated on fill section embankments with 2 1/2:1 and 6:1 slopes and for end offsets of 12, 18, and 24 ft. The treatments considered for each culvert design and embankment slope were: (1) do nothing (i.e., leave the culvert unprotected); (2) extend the culvert end 30 ft from the edge of the traveled way; (3) provide guardrail protection; and (4) provide grate protection.
Safety Treatment of Roadside Culverts on Low Volume Roads
Current American Association of State Transportation and Highway Officials (AASHTO) criteria for safety-treating fixed roadside hazards suggest that all culverts within a certain clear distance of the edge of the traveled way be shielded by a roadside barrier. This is not necessarily a cost-effective solution for low volume highways. Using a cost-effectiveness model currently recommended by AASHTO, guidelines for safety-treating culverts have been developed for 36 in. diameter pipe, 4 ft x 6 ft (4 ft height x 6 ft width) single box, and 4 ft x 6 ft multi-box (double box) culverts located on low volume, rural highways (average daily traffic less than 20,000). Each culvert design was evaluated on fill section embankments with 2 1/2:1 and 6:1 slopes and for end offsets of 12, 18, and 24 ft. The treatments considered for each culvert design and embankment slope were: (1) do nothing (i.e., leave the culvert unprotected); (2) extend the culvert end 30 ft from the edge of the traveled way; (3) provide guardrail protection; and (4) provide grate protection.
Safety Treatment of Roadside Culverts on Low Volume Roads
T. L. Kohutek (Autor:in) / H. E. Ross (Autor:in)
1978
127 pages
Report
Keine Angabe
Englisch
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