Author: United States. Federal Highway Administration Publisher: ISBN: Category : Electronic traffic controls Languages : en Pages : 7
Book Description
"The ... case study showcases a successful and effective low-cost treatment that measurably improved safety at three signalized intersections in Columbia, South Carolina (SC). The treatment consisted of adding a retroreflective border to the existing signal backplates."--Web site.
Author: Max Moreland Publisher: ISBN: Category : Roads Languages : en Pages : 0
Book Description
Between 2016 and 2021, MnDOT installed retroreflective signal backplate borders at 116 signalized intersections in Minnesota. Retroreflective signal backplate borders are intended to further increase visibility of the signal head both during the day and at night. The goal of installing retroreflectivity to backplates is to reduce crashes at the intersection by drawing more attention to the current phase of the signal. Backplates with retroreflective borders are listed as a Federal Highway Administration Proven Safety Countermeasure with a listed safety benefit of a 15% reduction in total crashes. With the installation of retroreflective signal backplates on MnDOT signals, the changes in crash rates were not found to be statistically significantly different from similar locations that did not have retroreflective signal backplates. These results indicate there has been little impact on crash rates in the few years after the installation of retroreflective signal backplates.
Author: James A. Swanson Publisher: ISBN: Category : Electronic traffic controls Languages : en Pages :
Book Description
Retroreflective backplates for traffic signals have a proven record of reducing traffic accidents and, currently, all new traffic signals are designed with backplates. While including backplates in the design of new signals and support structures is straightforward, adding backplates to existing signals can be problematic as doing so increases wind loads on the signals and the supporting structures, possibly to the extent that the existing structure is not adequate. This report describes a research project centering on an examination of pertinent design standards, specifications, and typical practice, to determine if broad recommendations could be made regarding whether the addition of backplates to existing signals would be acceptable or would render existing support structures inadequate for the increased wind loads. The University of Cincinnati research team, in concert with Kittelson and Associates, Inc., performed analyses of representative mast-arm and span-wire signal support structures and was able to identify areas where standard design procedures sometimes result in conservative designs. Additionally, the research team evaluated a commercially available flexible backplate design that can potentially reduce wind loads associated with the addition of retroreflective backplates to new or existing signals. Based on these analyses, a procedure for evaluating existing signs support structures for the increased wind loads due to the addition of rigid or flexible backplates is proposed.
Author: Brian E. Chandler Publisher: Momentum Press ISBN: 1606506889 Category : Technology & Engineering Languages : en Pages : 196
Book Description
This book introduces the basics of safety needs identification, countermeasure selection, and implementation of treatments designed to reduce the number of roadway crashes and resulting injuries and fatalities. It describes the current state of the practice and research regarding finding roadway safety issues, choosing treatments, and implementing their installation. The book also focuses on crashes occurring at intersections, work zones, and as the result of a lane departure.
Author: Publisher: ISBN: Category : Transportation Languages : en Pages : 176
Book Description
This report presents an overview of principles and practices that will help readers develop intersection designs that achieve the highest levels of safety, mobility and cost-effectiveness. It demonstrates practical design measures and tools that will improve intersection safety, provides examples of effective applications, and discusses experiences with innovative solutions.
Author: Carryl L. Baldwin Publisher: CRC Press ISBN: 0429529295 Category : Technology & Engineering Languages : en Pages : 252
Book Description
This book provides comprehensive information needed to assist with all aspects of designing, delivering, or evaluating transportation systems for use by older adults, and presents the necessary background on aging and human factors issues as well as practical guidelines needed to accommodate older adult transport users. Features Presents clear design guidance aimed at improving usability among older adults, a too often neglected but fast-growing segment of the transportation system population Includes comprehensive coverage of transportation systems, including the notably important issue of older drivers, but also additional transportation forms including public transportation via bus and subway, air transport, rail, bicycle, and even pedestrians Offers numerous examples throughout of best practices based on both the scientific literature and the content expertise of the authors Discusses practical implications of incorporating the recommended design principles for both older adults and other transport system users Provides useful background about normal age-related changes in sensory, cognitive, and physical abilities that impact older adults and how they interact with transportation systems
Author: David W. Eby Publisher: Elsevier ISBN: 0128123265 Category : Transportation Languages : en Pages : 302
Book Description
Promoting Safe Transportation among Older Adults: Perspectives and Strategies provides a concise, comprehensive, and up-to-date resource on safe mobility for an aging population. The book offers an interdisciplinary perspective for understanding and influencing the behavior of older adults with regard to their safe transportation. It is organized around the professions and disciplines that have a stake in the safe transportation of older adults and the role they play at each stage of their mobility needs. The book also addresses the various strategies that have been used to help keep older adults safe and mobile. Readers will find great insights on key issues related to aging and mobility, giving them an overarching framework for how to maintain safe mobility into older adulthood. The book enables readers to understand the perspectives of the critical groups of people involved in keeping older people safe and explores existing strategies by which an aging individual can maintain safe mobility. Utilizes a multidisciplinary, evidence-based approach for examining the complexities of transportation for older adults Offers an integrated, overarching narrative for understanding the key issues of safety and mobility in our aging society Written by leading transportation and health scholars Offers insights into the perspectives of all the stakeholders, such as hands-on transportation and health practitioners, students of varying levels, researchers and policymakers
Author: U.s. Department of Transportation Publisher: CreateSpace ISBN: 9781508557173 Category : Transportation Languages : en Pages : 286
Book Description
This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.
Author: United States. Federal Highway Administration
Author: Max Moreland
Author: James A. Swanson
Author: Brian E. Chandler
Author: 
Author: Carryl L. Baldwin
Author: David W. Eby
Author: Joseph F. Coughlin
Author: U.s. Department of Transportation
Author: