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Title: ISTEA INNOVATIVE BARRIERS: WHAT IS HAPPENING?
Accession Number: 00676505
Record Type: Component
Availability: Find a library where document is available Abstract: Section 1058 of the 1991 Intermodal Surface Transportation Efficiency Act (ISTEA) requires each State highway agency to certify annually that a minimum of 2.5% of the kilometers (mileage) of new or replacement permanent median barriers included in awarded contracts on Federal-aid highways consist of innovative barriers. Innovative barriers are defined in the legislation as those considered experimental by the Federal Highway Administration (FHWA) or declared operational after January 1, 1985. When the ISTEA became law, however, the FHWA was no longer classifying tested barriers as experimental or operational but rather leaving this decision to each highway agency. Therefore, a modified definition of innovative barrier was developed. For purposes of Section 1058, an innovative median barrier became one which (1) was considered experimental by a State; or (2) was not already in use (or was in limited use) by that State and differed significantly in material, size, shape, performance/test level or operational characteristics from median barriers in common use elsewhere. The information included in the certifications received for CY 1992 is summarized in this paper in a table. Eight different types of barriers were considered innovative by the certifying States. A brief description and a subjective analysis of each is provided.
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 #: 00676493
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Powers, R DPagination: p. 38-42
Publication Date: 1995-4
Serial: Media Type: Digital/other
Features: Tables
(1)
TRT Terms: Identifier Terms: Uncontrolled Terms: Subject Areas: Design; Highways; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure
Files: TRIS, TRB
Created Date: Apr 5 1995 12:00AM
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