|
|
|
Title: EFFECTIVENESS OF MEDIAN BARRIERS
Accession Number: 00203104
Record Type: Component
Abstract: MORE THAN 200 MI OF MEDIAN BARRIER HAVE BEEN INSTALLED ON THE HIGHEST VOLUME FREEWAYS IN CALIFORNIA SINCE 1959. THE TWO TYPES OF MEDIAN BARRIER ARE CABLE CHAIN LINK BARRIER AND DOUBLE BLOCKED-OUT MEDIAN BARRIER. THEY WERE INSTALLED TO PREVENT CROSS-MEDIAN HEAD-ON ACCIDENTS. THIS STUDY WAS INITIATED TO DETERMINE THE EFFECT OF THE INSTALLATION ON ALL TYPES OF ACCIDENTS. THE CONSTRUCTION AND MAINTENANCE COSTS OF THE TWO BARRIERS WERE ALSO STUDIED. CROSS-MEDIAN HEAD-ON ACCIDENTS HAVE BEEN ELIMINATED BY BARRIER INSTALLATION, BUT PROPERTY DAMAGE ACCIDENTS AND INJURY ACCIDENTS HAVE INCREASED. FATAL ACCIDENTS HAVE DECREASED AT BARRIER LOCATIONS IN SPITE OF A FEW ACCIDENTS INVOLVING THE BARRIERS WHICH RESULTED IN FATALITIES. THE COST ANALYSIS REVEALED THAT THE BEAM BARRIER IS MORE EXPENSIVE TO INSTALL AND THAT THE CABLE BARRIER IS MORE EXPENSIVE TO MAINTAIN. /AUTHOR/
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01410061
Authors: Johnson, Roger TPagination: pp 99-112
Publication Date: 1966
Serial: Media Type: Print
Features: Appendices
(3)
; Figures
(8)
; Tables
(8)
TRT Terms: Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Construction; Design; Highways; Maintenance and Preservation; Safety and Human Factors; Security and Emergencies
Files: TRIS, TRB
Created Date: Sep 29 1994 12:00AM
More Articles from this Serial Issue:
|
