Traffic Safety Evaluation Of Retroreflective Signal Backplate Borders At Signalized Intersections In Minnesota

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Traffic Safety Evaluation of Retroreflective Signal Backplate Borders at Signalized Intersections in Minnesota

Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)

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Book Synopsis Traffic Safety Evaluation of Retroreflective Signal Backplate Borders at Signalized Intersections in Minnesota by : Max Moreland

Download or read book Traffic Safety Evaluation of Retroreflective Signal Backplate Borders at Signalized Intersections in Minnesota written by Max Moreland and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Retroreflective Borders on Traffic Signal Backplates

Author : United States. Federal Highway Administration
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (648 download)

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Book Synopsis Retroreflective Borders on Traffic Signal Backplates by : United States. Federal Highway Administration

Download or read book Retroreflective Borders on Traffic Signal Backplates written by United States. Federal Highway Administration and published by . This book was released on 2010 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Evaluation of Low-cost Intersection Countermeasures to Reduce Red-light-running Violations

Author : Sunanda Dissanayake
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (896 download)

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Book Synopsis Evaluation of Low-cost Intersection Countermeasures to Reduce Red-light-running Violations by : Sunanda Dissanayake

Download or read book Evaluation of Low-cost Intersection Countermeasures to Reduce Red-light-running Violations written by Sunanda Dissanayake and published by . This book was released on 2014 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Division of Operations Research On-Call

Author : James A. Swanson
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Division of Operations Research On-Call by : James A. Swanson

Download or read book Division of Operations Research On-Call written by James A. Swanson and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Traffic Safety Evaluation at Reduced Conflict Intersections in Minnesota

Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (128 download)

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Book Synopsis Traffic Safety Evaluation at Reduced Conflict Intersections in Minnesota by : Max Moreland

Download or read book Traffic Safety Evaluation at Reduced Conflict Intersections in Minnesota written by Max Moreland and published by . This book was released on 2021 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2010 and 2020, 49 Reduced Conflict Intersections (RCIs) were installed on Minnesota Department of Transportation (MnDOT) roadways. The RCI is an alternative intersection layout that is intended to provide safety benefits by limiting the number of points within an intersection that two or more vehicle paths might intersect. Both a before-after analysis at RCIs and a cross-sectional analysis comparing RCIs to untreated intersections were conducted. With the installation of an RCI, both analyses yielded statistically significant decreases in fatal and serious injury crashes, angle crashes, and fatal and serious injury angle crashes. Statistically significant increases in rear-end crashes were found. Both analyses showed no significant changes to sideswipe crashes or total crashes. Based on these results, severity shift in crashes has been seen at the RCIs in Minnesota. The overall number of crashes have not changed, but the high-severity crashes have been reduced while property damage crashes have increased. The large decreases in severe crashes at RCI locations indicate the RCI can be an effective safety treatment.

Traffic Safety Evaluation of Lane Constrictor Intersections in Minnesota

Author : Max Moreland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)

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Book Synopsis Traffic Safety Evaluation of Lane Constrictor Intersections in Minnesota by : Max Moreland

Download or read book Traffic Safety Evaluation of Lane Constrictor Intersections in Minnesota written by Max Moreland and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Between 2018 and 2019, MnDOT installed a lane constrictor design at 66 side-street, stop-controlled intersections in Minnesota. The lane constrictor design narrows the lane width for mainline approaches via a striped median with centerline rumble strips. By narrowing the mainline lane, the goal of this design is to encourage mainline traffic to slow down as it approaches the intersection. The striped median also provides greater separation between mainline directions and draws more attention to the location of the intersection. Following the installation of lane constrictors at MnDOT intersections, overall crash rates have seen little change but there have been decreases in fatal and serious injury (KA) as well as fatal and all injury (KABC) crash rates. These results indicate the addition of lane constrictors have a positive impact on crashes by reducing the severity of crashes, swapping injury crashes for property damage only crashes.

A Signalized Intersection for Experimentation and Evaluation of Traffic Signal and Detection System Technology

Author : Kelvin R. Santiago-Chaparro
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (934 download)

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Book Synopsis A Signalized Intersection for Experimentation and Evaluation of Traffic Signal and Detection System Technology by : Kelvin R. Santiago-Chaparro

Download or read book A Signalized Intersection for Experimentation and Evaluation of Traffic Signal and Detection System Technology written by Kelvin R. Santiago-Chaparro and published by . This book was released on 2012 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Guidelines and Recommendations to Accommodate Older Drivers and Pedestrians

Author : L. K. Staplin
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Guidelines and Recommendations to Accommodate Older Drivers and Pedestrians by : L. K. Staplin

Download or read book Guidelines and Recommendations to Accommodate Older Drivers and Pedestrians written by L. K. Staplin and published by . This book was released on 2001 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Traffic Engineering Handbook

Author : ITE (Institute of Transportation Engineers)
Publisher : John Wiley & Sons
ISBN 13 : 1118762304
Total Pages : 688 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Traffic Engineering Handbook by : ITE (Institute of Transportation Engineers)

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.

Speed Management

Author : European Conference of Ministers of Transport
Publisher : OECD Publishing
ISBN 13 : 9282103781
Total Pages : 286 pages
Book Rating : 4.2/5 (821 download)

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Book Synopsis Speed Management by : European Conference of Ministers of Transport

Download or read book Speed Management written by European Conference of Ministers of Transport and published by OECD Publishing. This book was released on 2006-10-13 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Speeding is the number one road safety problem in a large number of OECD/ECMT countries. It is responsible for around one third of the current, unacceptably high levels of road fatalities. Speeding has an impact not only on accidents but also on the ...

Driver Expectancy in Highway Design and Traffic Operations

Author : Gerson J. Alexander
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Driver Expectancy in Highway Design and Traffic Operations by : Gerson J. Alexander

Download or read book Driver Expectancy in Highway Design and Traffic Operations written by Gerson J. Alexander and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expectancy relates to a driver's readiness to respond to situations, events, and information in predictable and successful ways. This report describes the concept of driver expectancy in the context of the driving task, and provides examples of expectancy and expectancy violations. It includes a procedure for identifying general and specific expectancy violations to enable engineers to develop remedial treatments to deal with expectancy problems.

Roadway Lighting Design Guide

Author : American Association of State Highway and Transportation Officials
Publisher : AASHTO
ISBN 13 : 156051325X
Total Pages : 134 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis Roadway Lighting Design Guide by : American Association of State Highway and Transportation Officials

Download or read book Roadway Lighting Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2005 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.

Economic Analysis Primer

Author :
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Economic Analysis Primer by :

Download or read book Economic Analysis Primer written by and published by . This book was released on 2003 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This primer provides a foundation for understanding the role of economic analysis in highway decision making. It is oriented toward state and local officials who have responsibility for assuring that limited resources get targeted to their best uses and who must publicly account for their decisions. Economic analysis is presented as an integral component of a comprehensive infrastructure management methodology that takes a long-term view of infrastructure performance and cost. The primer encompasses a full range of economic issues, including economic fundamentals, life-cycle cost analysis, benefit-cost analysis, forecasting traffic for benefit calculations, risk analysis and economic impact analysis.

Traffic Control Systems Handbook

Author :
Publisher :
ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Traffic Control Systems Handbook by :

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.

Introduction to GPS

Author : Ahmed El-Rabbany
Publisher : Artech House
ISBN 13 : 9781580531832
Total Pages : 202 pages
Book Rating : 4.5/5 (318 download)

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Book Synopsis Introduction to GPS by : Ahmed El-Rabbany

Download or read book Introduction to GPS written by Ahmed El-Rabbany and published by Artech House. This book was released on 2002 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you're looking for an up-to-date, easy-to-understand treatment of the GPS (Global Positioning System), this one-of-a-kind resource offers you the knowledge you need for your work, without bogging you down with advanced mathematics. It addresses all aspects of the GPS, emphasizes GPS applications, examines the GPS signal structure, and covers the key types of measurement being utilized in the field today.

Roadway Lighting Handbook

Author : United States. Federal Highway Administration. Office of Traffic Operations
Publisher :
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Roadway Lighting Handbook by : United States. Federal Highway Administration. Office of Traffic Operations

Download or read book Roadway Lighting Handbook written by United States. Federal Highway Administration. Office of Traffic Operations and published by . This book was released on 1978 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Urban Street Design Guide

Author : National Association of City Transportation Officials
Publisher : Island Press
ISBN 13 : 9781610914949
Total Pages : 0 pages
Book Rating : 4.9/5 (149 download)

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Book Synopsis Urban Street Design Guide by : National Association of City Transportation Officials

Download or read book Urban Street Design Guide written by National Association of City Transportation Officials and published by Island Press. This book was released on 2013-10-01 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NACTO Urban Street Design Guide shows how streets of every size can be reimagined and reoriented to prioritize safe driving and transit, biking, walking, and public activity. Unlike older, more conservative engineering manuals, this design guide emphasizes the core principle that urban streets are public places and have a larger role to play in communities than solely being conduits for traffic. The well-illustrated guide offers blueprints of street design from multiple perspectives, from the bird’s eye view to granular details. Case studies from around the country clearly show how to implement best practices, as well as provide guidance for customizing design applications to a city’s unique needs. Urban Street Design Guide outlines five goals and tenets of world-class street design: • Streets are public spaces. Streets play a much larger role in the public life of cities and communities than just thoroughfares for traffic. • Great streets are great for business. Well-designed streets generate higher revenues for businesses and higher values for homeowners. • Design for safety. Traffic engineers can and should design streets where people walking, parking, shopping, bicycling, working, and driving can cross paths safely. • Streets can be changed. Transportation engineers can work flexibly within the building envelope of a street. Many city streets were created in a different era and need to be reconfigured to meet new needs. • Act now! Implement projects quickly using temporary materials to help inform public decision making. Elaborating on these fundamental principles, the guide offers substantive direction for cities seeking to improve street design to create more inclusive, multi-modal urban environments. It is an exceptional resource for redesigning streets to serve the needs of 21st century cities, whose residents and visitors demand a variety of transportation options, safer streets, and vibrant community life.