Download or read book Evaluation of Critical Flare Rates for the Midwest Guardrail System MGS written by and published by . This book was released on 2008 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Flared Approach Guardrail Transitions and MASH 2270P Ram Vehicle Model Improvements written by Ryan Bickhaus and published by . This book was released on 2021 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research study was to use computer simulation to identify the critical flare rate for flaring approach guardrail transitions (AGTs) away from the primary roadway. AGTs installed with a flared configuration result in a length of need (LON) reduction as well as an increase in the clear zone area in front of the barrier, which would reduce both installation cost and crash frequency. The research focused on the determination of the maximum allowable flare rate that could safely be utilized with 31-in. (787-mm) tall thrie-beam AGTs without concrete curbs that utilize the Midwest Guardrail System (MGS) upstream of the transition. The research consisted of a literature review, development and validation of a tangent AGT LS-DYNA model, LS-DYNA simulation of multiple AGT flare rates from 10:1 to 25:1 with respect to the roadway, and the determination of the critical flare rate and critical impact points (CIPs) for full-scale testing. The simulation study identified the 15:1 and 12.5:1 flare rates as the critical flare rates that exhibited significant LON reduction while maintaining acceptable Manual for Assessing Safety Hardware (MASH 2016) safety performance criteria. Further simulation identified CIPs. In comparisons between the critical flare rates at the CIPs, the 15:1 flare rate exhibited improved vehicle stability and occupant risk criteria and should have a greater potential to pass MASH criteria, compared to the 12.5:1 flare rate. As a result, with sponsor feedback, the 15:1 flare rate was selected as the critical flare rate for full-scale crash testing. Following the completion of the flared AGT simulation study, several updates were made to the tire, suspension, and steering models on the 2018 Ram LS-DYNA vehicle model. The model tire, suspension, and steering updates were evaluated through curb traversal testing and compared to physical test results. While the updated vehicle model exhibited improved correlation with the physical test results, additional updates to the vehicle model are required to improve the simulated vehicle behavior.
Download or read book Minimum Effective Guardrail Length for the MGS written by Nicholas A. Weiland and published by . This book was released on 2013 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed analysis of the minimum effective guardrail length for the MGS (Midwest Guardrail System).
Download or read book Downstream Anchoring Requirements for the Midwest Guardrail System written by Mario Mongiardini and published by . This book was released on 2013 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Extending TL 2 Short Radius Guardrail to Larger Radii written by Cody S. Stolle and published by . This book was released on 2014 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by AASHTO. This book was released on 2011 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Roadside Design Guide presents a synthesis of current information and operating practices related to roadside safety and is written in dual units-metric and U.S. Customary. This book is a guide. It is not a standard, nor is it a design policy. It is intended to use as a resource document from which individual highway agencies can develop standards and policies. Although much of the material in the guide can be considered universal in its application, several recommendations are subjective in nature and may need modification to fit local conditions. However, it is important that significant deviations from the guide be based on operational experience and objective analysis. The 2011 edition of the AASHTO Roadside Design Guide has been updated to include hardware that has met the evaluation criteria contained in the National Cooperative Highway Research Program (NCHRP) Report 350: Recommended Procedures for the Safety Performance Evaluation of Highway Features and begins to detail the most current evaluation criteria contained under the Manual for Assessing Safety Hardware, 2009 (MASH). For the most part, roadside hardware tested and accepted under older guidelines that are no longer applicable has not been excluded in this edition." -- AASHTO website.
Download or read book Development of a Low cost Energy absorbing Bridge Rail written by Jeffrey C. Thiele and published by . This book was released on 2010 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of a Critical Flare Rate for W beam Guardrail in High speed Facilities Using Computer Simulation written by Beau D. Kuipers and published by . This book was released on 2004 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book What s Up Doc written by and published by . This book was released on 2007 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Shielding Bridge Piers written by Malcolm H. Ray and published by . This book was released on 2018 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Challenges of a Changing Earth written by Will Steffen and published by Springer Science & Business Media. This book was released on 2012-02-02 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is based on plenary presentations from Challenges of a Changing Earth, a Global Change Open Science Conference held in Amsterdam, The Neth- lands, in July 2001. The meeting brought together about 1400 scientists from 105 co- tries around the world to describe, discuss and debate the latest scientific - derstanding of natural and human-driven changes to our planet. It examined the effects of these changes on our societies and our lives, and explored what the future might hold. The presentations drew upon global change science from an exceptionally wide range of disciplines and approaches. Issues of societal importance – the food system, air quality, the carbon cycle, and water resources – were highlighted from both policy and science perspectives. Many of the talks presented the exciting scientific advances of the past decade of international research on global change. Several challenged the scientific community in the future. What are the visionary and creative new approaches needed for studying a complex planetary system in which human activities are in- mately interwoven with natural processes? This volume aims to capture the timeliness and excitement of the science p- sented in Amsterdam. The plenary speakers were given a daunting task: to reproduce their presentations in a way that delivers their scientific messages accurately and in sufficient detail but at the same time reaches a very broad audience well beyond their own disciplines. Furthermore, they were required to do this in just a few pages.
Download or read book Case Studies in Drowning Forensics written by Kevin Gannon and published by CRC Press. This book was released on 2018-12-07 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: When a corpse is found in a body of water, authorities generally presume that the manner of death was either an accident or a suicide. They do not treat the recovery site as a potential crime scene or homicide, so many cases remain unsolved. Case Studies in Drowning Forensics investigates the cases of 13 bodies recovered from water in similar circu
Download or read book The Handbook of Road Safety Measures written by Rune Elvik and published by Emerald Group Publishing. This book was released on 2009-10-14 with total page 1137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains summaries of the knowledge regarding the effects of 128 road safety measures. This title covers various areas of road safety including: traffic control; vehicle inspection; driver training; publicity campaigns; police enforcement; and, general policy instruments. It also covers topics such as post-accident care, and speed cameras.
Download or read book Tracking Bodhidharma written by Andy Ferguson and published by Catapult. This book was released on 2012-04-12 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The life of Bodhidharma, the founder of Zen Buddhism, has, with the passing of time, been magnified to the scale of myth, turning history into the stuff of legend. Known as the First Patriarch, Bodhidharma brought Zen from South India into China in 500 CE, changing the country forever. In Tracking Bodhidharma, Andrew Ferguson recreates the path of Bodhidharma, traveling through China to the places where the First Patriarch lived and taught. This sacred trail takes Ferguson deep into ancient China, and allows him to explore the origins of Chan [Zen] Buddhism, the cultural aftermath that Bodhidharma left in his wake, and the stories of a man who shaped a civilization. Tracking Bodhidharma offers a previously unheard perspective on the life of Zen's most important religious leader, while simultaneously showing how that history is relevant to the rapidly developing super–power that is present–day China. By placing Zen Buddhism within the country's political landscape, Ferguson presents the religion as a counterpoint to other Buddhist sects, a catalyst for some of the most revolutionary moments in China's history, and as the ancient spiritual core of a country that is every day becoming more an emblem of the modern era.
Download or read book Manual for Assessing Safety Hardware 2009 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Quality Engineering written by Genichi Taguchi and published by Organization. This book was released on 1986 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Back Cover: Introduction to Quality Engineering is the first book with specific in-depth methods that places the responsibility of quality on everyone associated with the marketing, engineering and manufacturing of a product, and turns them all into Quality Control specialists. The book quantifies the loss due to lack of quality of a performance characteristic by directly relating it to its deviation from target performance, and shows efficient experimental and analytical techniques to minimize it. Unlike other books on quality and industrial experimentation which treat the subject specialty in a localized manner, this book encompasses all major activities of an industry, and links them together with a common objective of reducing quality loss. Chapters of the book progress smoothly and build upon the previous chapters. Each chapter introduces the subject matter, then a real life case study follows and ends with question and answer session between Dr. Taguchi and the student in a typical class. The techniques shown are powerful but easy to apply, and does not require statistical background or any other prerequisites; thus, the subject can be taught to engineers in an industry or in engineering schools.
