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Author : Francisco Daniel B. Albuquerque
Release : 2014
Genre : Roads
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Phase I Assessment of Guardrail Length-of-need by : Francisco Daniel B. Albuquerque
Download or read book Phase I Assessment of Guardrail Length-of-need written by Francisco Daniel B. Albuquerque. This book was released on 2014. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Release : 1989
Genre : Roads
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Roadside Design Guide by : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety. This book was released on 1989. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karen Zhu
Release : 2009-03-01
Genre : Transportation
Kind : eBook
Book Rating : 557/5 ( reviews)
Book Synopsis Risk Management and Assessment of Upgrading and Standardizing Guardrail by : Karen Zhu
Download or read book Risk Management and Assessment of Upgrading and Standardizing Guardrail written by Karen Zhu. This book was released on 2009-03-01. Available in PDF, EPUB and Kindle. Book excerpt: The Indiana Department of Transportation (INDOT) has installed guardrail systems on interstate highways and other highways in accordance with a variety of standards throughout the years. Traffic volume has increased and the posted speeds have been raised on most INDOT's interstate highways. Consequently, the characteristics of run-off-the-road (ROR) crashes may have changed. In the meantime, material prices have increased considerably and the guardrail maintenance and crash repair costs have increased accordingly. There is no doubt all these changes will not only greatly affect the ROR crash prediction, but also greatly affect the guardrail benefit/cost analysis. This study examined the current use of roadside guardrails on INDOT intestates, State highways, and US highways, roadways, including types and lengths of guardrails, types and numbers of guardrail end treatments, and field guardrail positions. Based on the records of total 4657 ROR crashes occurred in 2004 and 2006, this study investigated the characteristics of ROR crashes, such as frequencies and locations of ROR crashes, crash consequences (number of vehicles involved, injuries and fatalities), and the effects of main factors, in particular roadway geometrics, seasons and traffic volume, on the highways of different classes. Furthermore, this study investigated the features of vehicle-guardrail crashes, including impact positions and corresponding frequencies and consequences. ROR crash predictions were examined in all aspects in this study, including encroachment rates, crash probabilities, and severity probabilities. It was found that the encroachment rates obtained by this study are less than those in the AASHTO Roadside Design Guide. This study evaluated the issues associated with the guardrail crash repair costs, such as parts costs, labor costs, and equipment costs.
Author : National Academies of Sciences, Engineering, and Medicine (U.S.). Committee for Study of In-Service Performance of W-Beam Guardrail End Treatments, Phase 1
Release : 2017
Genre : Roads
Kind : eBook
Book Rating : 200/5 ( reviews)
Book Synopsis In-service Performance Evaluation of Guardrail End Treatments by : National Academies of Sciences, Engineering, and Medicine (U.S.). Committee for Study of In-Service Performance of W-Beam Guardrail End Treatments, Phase 1
Download or read book In-service Performance Evaluation of Guardrail End Treatments written by National Academies of Sciences, Engineering, and Medicine (U.S.). Committee for Study of In-Service Performance of W-Beam Guardrail End Treatments, Phase 1. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: "TRB Special Report 323, In-Service Performance Evaluation of Guardrail End Treatments, develops a research design for evaluating the in-service performance of guardrail end treatments and other roadside safety devices and identifies the data required to do so. Given the substantial data requirements and methodological challenges of conducting successful evaluations of particular end treatments, the committee concludes that state highway agencies will require more information about the benefits, costs, and practicality of routine in-service evaluation of end treatments in general before deciding to undertake new data collection and analysis programs necessary to carry out more challenging analyses. The committee recommends research to advance practice and test the feasibility of and costs associated with more complex evaluations. It also recommends research to examine whether procedures for testing the performance of devices should be altered"--Provided by publisher.
Author :
Release : 1988
Genre : Impact
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Small Sign Support Analysis, Phase I by :
Download or read book Small Sign Support Analysis, Phase I written by . This book was released on 1988. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a series of full-scale vehicular crash tests conducted to evaluate the impact performance of small sign supports used by the Arizona Department of Transportation (ADOT). The tests were conducted and evaluated in accordance with the recommendations of NCHRP Report 230 and the 1985 AASHTO "Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals."
