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Author : Howard Preston
Publisher :
ISBN 13 :
Total Pages : 144 pages
Book Rating : 4.3/5 (555 download)
Download or read book Bypass Lane Safety, Operations, and Design Study written by Howard Preston and published by . This book was released on 2000 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sunanda Dissanayake
Publisher :
ISBN 13 :
Total Pages : 71 pages
Book Rating : 4.:/5 (919 download)
Download or read book Evaluation of Bypass Lane Safety, Operations, and Design in Kansas written by Sunanda Dissanayake and published by . This book was released on 2015 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of bypass lanes at rural intersections has typically been considered a low-cost highway safety improvement by the transportation community. However, this needs to be quantitatively evaluated so that decisions can be made on whether to continue adding bypass lanes. Highway safety analyses utilize two common approaches to evaluate the effectiveness of a treatment: before-and-after study and cross-sectional study, both of which were utilized in this study. For the before-and-after study approach, this research performed paired sample t-test statistical analysis to estimate changes in total crash frequencies, crash rates, Equivalent Property Damage Only (EPDO) crash frequencies, and EPDO crash rates at intersections 3 to 5 years after the addition of bypass lanes, compared to 3 to 5 years before bypass lane additions. Crash data between 1990 and 2011 were obtained from the Kansas Crash and Analysis Record System (KCARS), maintained by the Kansas Department of Transportation (KDOT). For the cross-sectional study, intersections with bypass lanes were compared to intersections with no bypass lanes, for which crash data were obtained for more than 1,100 intersections in Kansas. According to the before-and-after study, bypass lanes improve safety at unsignalized rural intersections. Total number of crashes and crash severity decreased after bypass lane additions, but these reductions were not statistically significant at a 95% confidence level for the majority of cases. For intersection-related crashes, however, a statistically significant reduction in crash rates occurred after the addition of bypass lanes at three-legged intersections. By lowering the confidence level to 90%, however, more categories become significant for both three-legged and four-legged intersections. In the cross-sectional study, number of crashes and crash severities were lower at three-legged intersections with bypass lanes compared to three-legged intersections without bypass lanes, even though these reductions were not statistically significant at a 95% level. When considering a 300-ft intersection box, statistically significant crash reductions occurred at four-legged intersections, for all considered crash and crash rate categories. When considering 90% level, crash reduction at three-legged intersections was also statistically significant when considering a 300-ft intersection box. Crash Modification Factors (CMFs) calculated to evaluate safety effectiveness of bypass lanes at unsignalized rural intersections in Kansas showed values less than 1.0 for almost all cases, indicating safety benefits of bypass lanes. Overall, this study concludes that bypass lanes are beneficial in improving safety in rural areas, even though they may not be advisable in high volume conditions. Accordingly, there is no harm in continuing with the practice of adding shoulder bypass lanes at rural unsignalized intersections where the traffic volumes are relatively low.
Author : Lee August Rodegerdts
Publisher : Transportation Research Board
ISBN 13 : 0309155118
Total Pages : 407 pages
Book Rating : 4.3/5 (91 download)
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 Development of Left-turn Lane Warrants for Unsignalized Intersections written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Left-turn movements at intersections, including driveways - especially movements that are made from lanes that are shared with through traffic - cause delays and adversely impact safety. Although left-turn warrants have been updated, many agencies still use research performed by M. Harmelink from the mid-1960s. While most states use procedures that are based on Harmelink, a number of limitations of Harmelink's procedure have been identified. Economic analysis can provide a useful method for combining traffic operations and safety benefits of left-turn lanes to identify situations in which left-turn lanes are and are not justified economically. This project used a benefit-cost approach to determine when a left-turn lane would be justified. The steps included simulation to determine delay savings from installing a left-turn lane, crash costs and crash reduction savings determined from safety performance functions and accident modification factors available in the "Highway Safety Manual," and construction costs. Left-turn lane warrants were developed for rural two-lane highways, rural four-lane highways, and urban and suburban roadways. In addition, warrants for bypass lanes were developed for rural two-lane highways. A "Design Guide on Left-Turn Accommodations at Unsignalized Intersections" was developed that discusses left-turn lane designs, traffic control treatments, and case study examples.
Author :
Publisher : AASHTO
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4./5 ( download)
Download or read book Highway Safety Design and Operations Guide, 3rd Edition written by and published by AASHTO. This book was released on with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : ITE (Institute of Transportation Engineers)
Publisher : John Wiley & Sons
ISBN 13 : 1118762304
Total Pages : 688 pages
Book Rating : 4.1/5 (187 download)
Download or read book Traffic Engineering Handbook written by ITE (Institute of Transportation Engineers) and published by John Wiley & Sons. This book was released on 2016-01-26 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a complete look into modern traffic engineering solutions Traffic Engineering Handbook, Seventh Edition is a newly revised text that builds upon the reputation as the go-to source of essential traffic engineering solutions that this book has maintained for the past 70 years. The updated content reflects changes in key industry standards, and shines a spotlight on the needs of all users, the design of context-sensitive roadways, and the development of more sustainable transportation solutions. Additionally, this resource features a new organizational structure that promotes a more functionally-driven, multimodal approach to planning, designing, and implementing transportation solutions. A branch of civil engineering, traffic engineering concerns the safe and efficient movement of people and goods along roadways. Traffic flow, road geometry, sidewalks, crosswalks, cycle facilities, shared lane markings, traffic signs, traffic lights, and more—all of these elements must be considered when designing public and private sector transportation solutions. Explore the fundamental concepts of traffic engineering as they relate to operation, design, and management Access updated content that reflects changes in key industry-leading resources, such as the Highway Capacity Manual (HCM), Manual on Uniform Traffic Control Devices (MUTCD), AASSHTO Policy on Geometric Design, Highway Safety Manual (HSM), and Americans with Disabilities Act Understand the current state of the traffic engineering field Leverage revised information that homes in on the key topics most relevant to traffic engineering in today's world, such as context-sensitive roadways and sustainable transportation solutions Traffic Engineering Handbook, Seventh Edition is an essential text for public and private sector transportation practitioners, transportation decision makers, public officials, and even upper-level undergraduate and graduate students who are studying transportation engineering.
Author : Rune Elvik
Publisher : Emerald Group Publishing
ISBN 13 : 1848552513
Total Pages : 1137 pages
Book Rating : 4.8/5 (485 download)
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.
Author : Chicago Area Transportation Study. Roadway Operations Task Force
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.3/5 (555 download)
Download or read book Operation Green Light written by Chicago Area Transportation Study. Roadway Operations Task Force and published by . This book was released on 1990 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kristine Williams
Publisher :
ISBN 13 : 9780309295413
Total Pages : 529 pages
Book Rating : 4.2/5 (954 download)
Download or read book Access Management Manual written by Kristine Williams and published by . This book was released on 2014 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since the publication of the first edition of the Access Management Manual, the context for transportation planning and roadway design in the United States has been transformed. Transportation agencies and local governments are under growing pressure to integrate land use and transportation policy and achieve a more sustainable, energy-efficient transportation system. This second edition of the manual responds to these developments by addressing access management comprehensively, as a critical part of network and land use planning. The content is interdisciplinary, with guidance pertinent to various levels of government as well as to pedestrians, bicyclists, and motorized vehicles, including trucks and buses, and is strongly grounded in decades of research, engineering science, and professional experience. Greater emphasis is placed on appropriate location of access, and guidance is refined to provide appropriate consideration of context and community issues. Substantial updates aid state and local agencies in managing access to corridor development effectively. Specific guidance on network and circulation planning and modal considerations is included, as well as guidance on effective site access and circulation design. A chapter on corridor management reinforces these concepts with a framework for application of access management in different contexts, along with appropriate strategies for each context. There are also new chapters on network planning, regional access management policies and programs, interchange area access management, auxiliary lane warrants and design, and right-of-way and access control. The manual concludes with an extensive menu of access management techniques and information on their application"--Provided by publisher.
Author : Rune Elvik
Publisher : Emerald Group Publishing
ISBN 13 : 1848552505
Total Pages : 1137 pages
Book Rating : 4.8/5 (485 download)
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.
Author : David L. Harkey
Publisher : Transportation Research Board
ISBN 13 : 0309117380
Total Pages : 85 pages
Book Rating : 4.3/5 (91 download)
Download or read book Accident Modification Factors for Traffic Engineering and ITS Improvements written by David L. Harkey and published by Transportation Research Board. This book was released on 2008 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB¿s National Cooperative Highway Research Program (NCHRP) Report 617: Accident Modification Factors for Traffic Engineering and ITS Improvements explores the development of accident modification factors (AMFs) for traffic engineering and intelligent transportation system improvements. AMFs, also known as crash reduction factors, are designed to provide a simple and quick way of estimating the safety impacts of various types of engineering improvements, encompassing the areas of signing, alignment, channelization, and other traffic engineering solutions.
Author : James E. Bryden
Publisher : Transportation Research Board
ISBN 13 : 0309067650
Total Pages : 131 pages
Book Rating : 4.3/5 (9 download)
Download or read book Guidelines for Design and Operation of Nighttime Traffic Control for Highway Maintenance and Construction written by James E. Bryden and published by Transportation Research Board. This book was released on 2002 with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.0/5 ( download)
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:
Author :
Publisher :
ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (318 download)
Download or read book Traffic Control Systems Handbook written by and published by . This book was released on 1976 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook, which was developed in recognition of the need for the compilation and dissemination of information on advanced traffic control systems, presents the basic principles for the planning, design, and implementation of such systems for urban streets and freeways. The presentation concept and organization of this handbook is developed from the viewpoint of systems engineering. Traffic control studies are described, and traffic control and surveillance concepts are reviewed. Hardware components are outlined, and computer concepts, and communication concepts are stated. Local and central controllers are described, as well as display, television and driver information systems. Available systems technology and candidate system definition, evaluation and implementation are also covered. The management of traffic control systems is discussed.
Author :
Publisher :
ISBN 13 :
Total Pages : 936 pages
Book Rating : 4.:/5 (1 download)
Download or read book Guidance for Implementation of the AASHTO Strategic Highway Safety Plan written by and published by . This book was released on 2003 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Canada. Transport Canada. Surface. Road Safety. Traffic Safety Standards and Research Branch
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (617 download)
Download or read book Passing Manoeuvres and Passing Lanes written by Canada. Transport Canada. Surface. Road Safety. Traffic Safety Standards and Research Branch and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steve Kuciemba
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (359 download)
Download or read book Safety Effectiveness of Highway Design Features written by Steve Kuciemba and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
