Analysis of roadside safety devices for use on very high-speed roadways /

Bibliographic Details
Corporate Authors:	United States. Federal Highway Administration, Texas. Department of Transportation. Research and Technology Implementation Office, Texas Transportation Institute
Other Authors:	Sheikh, Nauman Mansoor
Format:	eBook
Language:	English
Published:	College Station, Tex. : Texas Transportation Institute, Texas A&M University System, 2009.
Series:	Research report (Austin, Tex.) ; 0-6071-1.
Subjects:	Roads > Texas > Safety measures. Traffic safety > Texas. Roads. Guardrails. Sign supports. Finite element method. Simulation. impact tests.
Online Access:	Connect to the full text of this online report (Texas Transportation Institute) Connect to the full text of this online report (RITA National Transportation Library)

Description
Abstract:	The Texas Department of Transportation (TxDOT) is embarking on a multi-decade effort to expand the state's transportation system. TxDOT has expressed an interest in using very high design speeds (above 80 mph) for some of these facilities to promote faster and more efficient travel within the state. Currently, roadside safety hardware is tested at a speed of 62 mph. This impact speed was derived from crash data collected on roads with design speeds up to 70 mph. The ability of existing roadside safety features to accommodate more severe, higher energy impacts is not known. The objective of this research is to develop roadside safety hardware suitable for use on very highspeed highways. Finite element simulations are used to evaluate the impact performance of selected roadside safety devices subjected to very high-speed impacts. Systems analyzed include single slope concrete barrier, modified thrie-beam guardrail, box beam guardrail, and slip-base sign supports. Design modifications to some of these systems are recommended for further consideration.
Item Description:	Title from PDF title screen (September 30, 2009). "Performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration." "February 2009. Published: September 2009." "Report number FHWA/TX-09/0-6071-1"--Technical report documentation p. Electronic resource.
Physical Description:	80 pages : digital, PDF file (5.65 MB) with illustrations (some color).
Format:	System requirements: Adobe Acrobat Reader.
Bibliography:	Includes bibliographical references (page 77).