Download or read book Safety Impacts of Pavement Edge Drop offs written by Shauna L. Hallmark and published by . This book was released on 2006 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: A vehicle may leave its travel lane for a number of reasons, such as driver error, poor surface conditions, or avoidance of a collision with another vehicle in the travel lane. When a vehicle leaves the travel lane, pavement edge drop-off poses a potential safety hazard because significant vertical differences between surfaces can affect vehicle stability and reduce a driver's ability to handle the vehicle. Numerous controlled studies have tested driver response to encountering drop-offs under various conditions, including different speeds, vehicle types, drop-off height and shape, and tire scrubbing versus non-scrubbing conditions. The studies evaluated the driver's ability to return to and recover within their own travel lane after leaving the roadway and encountering a drop-off. Many of these studies, however, have used professional drivers as test subjects, so results may not always apply to the population of average drivers. Furthermore, test subjects are always briefed on what generally is to be expected and how to respond; thus, the sense of surprise that a truly naive driver may experience upon realizing that one or two of his or her tires have just dropped off the edge of the pavement, is very likely diminished. Additionally, the studies were carried out under controlled conditions. The actual impact of pavement edge drop-off on drivers' ability to recover safely once they leave the roadway, however, is not well understood under actual driving conditions. Additionally, little information is available that quantifies the number or severity of crashes that occur where pavement edge drop-off may have been a contributing factor. Without sufficient information about the frequency of edge drop-off-related crashes, agencies are not fully able to measure the economic benefits of investment decisions, evaluate the effectiveness of different treatments to mitigate edge drop-off, or focus maintenance resources. To address these issues, this report details research to quantify the contribution of pavement edge drop-off to crash frequency and severity. Additionally, the study evaluated federal and state guidance in sampling and addressing pavement edge drop-off and quantified the extent of pavement edge drop-off in two states. This study focused on rural two-lane paved roadways with unpaved shoulders, since they are often high speed facilities (55+ mph), have varying levels of maintenance, and are likely to be characterized by adverse roadway conditions such as narrow lanes or no shoulders.
Download or read book Standard Specifications for Construction of Roads and Bridges on Federal Highway Projects written by United States. Federal Highway Administration and published by . This book was released on 1985 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Factors Guidelines for Road Systems written by John L. Campbell and published by Transportation Research Board. This book was released on 2010 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: NCHRP report 600 explores human factors principles and findings for consideration by highway designers and traffic engineers. The report is designed to help the nonexpert in human factors to consider more effectively the roadway user's capabilities and limitations in the design and operation of highway facilities.
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 Guidance for Implementation of the AASHTO Strategic Highway Safety Plan written by Timothy R. Neuman and published by Transportation Research Board. This book was released on 2008 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Also available online via the Web pages of the TRB Cooperative Research Programs (www4.trb.org/trb/crp.nsf).
Download or read book Public Roads written by and published by . This book was released on 1926 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Gravel Roads written by Ken Skorseth and published by . This book was released on 2000 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Download or read book Guidance for Implementation of the AASHTO Strategic Highway Safety Plan written by and published by . This book was released on 2004 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Roadway Geometric Design Research for Improved Safety and Operations written by Marcus Brewer and published by Transportation Research Board. This book was released on 2012 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: RB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that identified impacts on safety and operations.
Download or read book Report written by and published by . This book was released on 2007 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Policy on Design Standards interstate System written by and published by Aashto. This book was released on 2005 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roundabouts written by Lee August Rodegerdts and published by Transportation Research Board. This book was released on 2010 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.
Download or read book Roadway Safety and Tort Liability written by John C. Glennon and published by Lawyers and Judges Publishing. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roadway Safety and Tort Liability, the second edition of Roadway Defects and Tort Liability, provides an extensive review of roadway design, roadway maintenance, traffic safety and human factors aspects of roadway safety. This edition has been expanded to include many important new topics. The first half examines the various structural components that make roads either safe or unsafe. It guides you through common roadway defects, explores historical standards, accident circumstances, and legal arguments. The second half provides an overview of lawsuits brought against states, and municipalities for accidents claimed to have been caused by one or more of the roadway safety topics discussed in the first section of the book.
Download or read book Guide for the Planning Design and Operation of Pedestrian Facilities written by and published by AASHTO. This book was released on 2004 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Teen and Novice Drivers written by Donald L Fisher and published by CRC Press. This book was released on 2016-09-19 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite a growing body of research and targeted remediation, teenage and novice drivers continue to be six to nine times more likely to die in a crash than they are when they are just a few years older. The World Health Organization reports that road traffic injuries are the leading cause of death globally among 15 to 19 year olds. In light of these crash statistics, understanding the teen driver problem remains of paramount public health importance around the world. The Handbook of Teen and Novice Drivers: Research, Practice, Policy, and Directions provides critical knowledge for a broad range of potential readers, including students, teachers, researchers in academics, industry and the federal government, public policy makers at all levels, insurance companies and automobile manufacturers, driving instructors, and parents and their teens.
Download or read book The Influence of Roadway Surface Discontinuities on Safety written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1984 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Transportation Research Board's Committee on Surface Properties-Vehicle Interaction recognized that no comprehensive effort had ever been made to compile and discuss the various kinds of discontinuities that occur in roadway surfaces and their influence on traffic safety. Consequently, a Task Group was appointed by the Committee to compile such a document. The objectives of the Task Group were to identify and discuss the safety implication of significant categories or surface discontinuities and document relevant literature for each category. The results of the Task Group's activity, contained in this report, will provide a useful resource for decision makers and others involved in providing and maintaining safe traveled surfaces.
