Author: James E. BrydenPublisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
Development of Proposed Height Standards and Tolerances for Light-post Traffic Barriers. Interim Report
Author: James E. BrydenDevelopment of Proposed Height Standards and Tolerances for Light-post Traffic Barriers
Author: James E. BrydenPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 46
Book Description
Current New York State height standards for light-post traffic barriers are based on crash tests, in-service accident experience, and analysis of vehicle geometric characteristics. However, those standards were set in 1969. Analysis of the geometric characteristics of current vehicles reveals that if mounting heights were lowered by 3 in., the railings would provide improved protection against vehicle underride and still provide satisfactory protection against vaulting. Crash-test data and extensive accident experience indicate that barriers mounted at this lower height will continue to perform well, even when a plus or minus 3-in. tolerance is permitted. Current New York State and AASHTO standards and the proposed new standards are presented, and it may be possible to increase the range of allowable heights after completion of research now planned or under way.
Federally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1985
Author: Federally Coordinated Program of Highway Research, Development and Technology
Author: Traffic Barrier Performance
Author: J. G. Fred HissPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 44
Book Description
This report summarizes research on traffic barrier performance conducted by New York from 1983 through 1987, which concentrated on 1) development of height standards and tolerances for light-post barriers, 2) barrier performance related to vehicle characteristics, 3) development of an economic model to compare median barrier costs, and 4) effects of curbs on barrier performance. Accident data were obtained for approximately 3300 accidents occurring between July 1, 1982 and June 30, 1983. Of these, about 1700 were at light-post barrier sites.
Monthly Checklist of State Publications
Author: Library of Congress. Exchange and Gift DivisionPublisher:
ISBN:
Category : State government publications
Languages : en
Pages : 806
Book Description
June and Dec. issues contain listings of periodicals.
Monthly Checklist
Author: The Quarterly R&D Digest
Author: Transportation Research Record
Author: Bridge Rail Designs and Performance Standards: Research report
Author: Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 172
Book Description
"This project evaluated bridge railings. State bridge rail designs submitted to the Federal Highway Administration (FHWA) were rated and the best of each type were selected for crash test evaluation. When necessary, the designs were improved and retested. Most of the crash tests were conducted with 4500-lb (2025-kg) cars at 60 mph (95 km/h) and a 25-degree angle and 1800-lb (800-kg) cars at 60 mph (95 km/h) and a 20-degree angle. Performance standards are proposed in 1986 are presented, along with bridge railing geometric design considerations to minimize vehicle snagging. Design drawings of the successfully tested bridge rails are included"--Technical report documentation page