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Research for AASHTO Standing Committee on Highways. Task 209. Incorporation of Research Findings into AASHTO's Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals

项目名称：	Research for AASHTO Standing Committee on Highways. Task 209. Incorporation of Research Findings into AASHTO's Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals
摘要：	The 4th Edition of the Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals was published in 2001 as a result of two extensive National Cooperative Highway Research Program (NCHRP) studies. This edition of the Specification incorporates an updated wind map, serviceability requirements, fatigue requirements for steel and aluminum supports, and guidelines for foundation designs. Many of these requirements are new to the Specification and had not been routinely considered in previous designs. Since this rewrite, the NCHRP and several states have sponsored studies to supplement the original reports. NCHRP Report 469: Fatigue-Resistant Design of Cantilevered Signal, Sign, and Light Supports and NCHRP Report 494: Structural Supports for Highway Signs, Luminaries, and Traffic Signals are two such studies. Even though the findings are documented, it has become increasingly difficult for the Technical Committee for Structural Supports for Signs, Luminaries, and Traffic Signals (T-12) to review and develop specification language in a timely and appropriate manner. A deliverable of many recent NCHRP studies has been to develop specification language suitable for consideration by technical committees and adoption by the Subcommittee on Bridges and Structures. The reliability of the Specification can only be assured when the appropriate knowledge, based on current research, is incorporated into the Specification. The objective of this project is to provide specification and commentary language necessary to update the 4th Edition of the Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals (Specifications) based on the appropriate findings of recent research activities. The project panel has selected a contractor and preparation of the necessary contract documents in underway.
状态：	Completed
资金：	50000.00
资助组织：	Federal Highway Administration<==>American Association of State Highway and Transportation Officials (AASHTO)<==>National Cooperative Highway Research Program
项目负责人：	Beal, David B
执行机构：	University of Wyoming, Laramie
开始时间：	20051108
实际结束时间：	20061215
主题领域：	Bridges and other structures；Design；Highways；Operations and Traffic Management