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Speed Reduction Techniques For Rural High To Low Speed Transitions
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Book Synopsis Speed Reduction Techniques for Rural High-to-low Speed Transitions by : Gerry John Forbes
Download or read book Speed Reduction Techniques for Rural High-to-low Speed Transitions written by Gerry John Forbes and published by Transportation Research Board. This book was released on 2011 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 412: Speed Reduction Techniques for Rural High-to-Low Speed Transitions explores techniques for lowering traffic speeds in rural transition zones. Transition zones are those portions of high-speed roads that have lower posted speed limits as the roadway approaches a settlement.
Book Synopsis Speed Reduction Techniques for Rural High-to-low Speed Transitions by : Gerry John Forbes
Download or read book Speed Reduction Techniques for Rural High-to-low Speed Transitions written by Gerry John Forbes and published by . This book was released on 2011 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 412: Speed Reduction Techniques for Rural High-to-Low Speed Transitions explores techniques for lowering traffic speeds in rural transition zones. Transition zones are those portions of high-speed roads that have lower posted speed limits as the roadway approaches a settlement.
Book Synopsis Design Guidance for High-speed to Low-speed Transition Zones for Rural Highways by : Darren J. Torbic
Download or read book Design Guidance for High-speed to Low-speed Transition Zones for Rural Highways written by Darren J. Torbic and published by Transportation Research Board. This book was released on 2012 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRBs National Cooperative Highway Research Program (NCHRP) Report 737: Design Guidance for High-Speed to Low-Speed Transitions Zones for Rural Highways presents guidance for designing the transition from a high-speed rural highway to a lower-speed section, typically approaching a small town. The report includes a methodology for assessing these highway sections and a catalog of potential treatments for addressing problems."--Publisher's description.
Book Synopsis Human Factors Guidelines for Road Systems by : John L. Campbell
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 2012 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report completes and updates the first edition of NCHRP Report 600: Human Factors Guidelines for Road Systems (HFG), which was published previously in three collections. The HFG contains guidelines that provide human factors principles and findings for consideration by, and is a resource document for, highway designers, traffic engineers, and other safety practitioners."--Foreword.
Book Synopsis Design Guidance for High-Speed to Low-Speed Transitions Zones for Rural Highways by :
Download or read book Design Guidance for High-Speed to Low-Speed Transitions Zones for Rural Highways written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1969 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Encyclopedia of Transportation by :
Download or read book International Encyclopedia of Transportation written by and published by Elsevier. This book was released on 2021-05-13 with total page 4418 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an increasingly globalised world, despite reductions in costs and time, transportation has become even more important as a facilitator of economic and human interaction; this is reflected in technical advances in transportation systems, increasing interest in how transportation interacts with society and the need to provide novel approaches to understanding its impacts. This has become particularly acute with the impact that Covid-19 has had on transportation across the world, at local, national and international levels. Encyclopedia of Transportation, Seven Volume Set - containing almost 600 articles - brings a cross-cutting and integrated approach to all aspects of transportation from a variety of interdisciplinary fields including engineering, operations research, economics, geography and sociology in order to understand the changes taking place. Emphasising the interaction between these different aspects of research, it offers new solutions to modern-day problems related to transportation. Each of its nine sections is based around familiar themes, but brings together the views of experts from different disciplinary perspectives. Each section is edited by a subject expert who has commissioned articles from a range of authors representing different disciplines, different parts of the world and different social perspectives. The nine sections are structured around the following themes: Transport Modes; Freight Transport and Logistics; Transport Safety and Security; Transport Economics; Traffic Management; Transport Modelling and Data Management; Transport Policy and Planning; Transport Psychology; Sustainability and Health Issues in Transportation. Some articles provide a technical introduction to a topic whilst others provide a bridge between topics or a more future-oriented view of new research areas or challenges. The end result is a reference work that offers researchers and practitioners new approaches, new ways of thinking and novel solutions to problems. All-encompassing and expertly authored, this outstanding reference work will be essential reading for all students and researchers interested in transportation and its global impact in what is a very uncertain world. Provides a forward looking and integrated approach to transportation Updated with future technological impacts, such as self-driving vehicles, cyber-physical systems and big data analytics Includes comprehensive coverage Presents a worldwide approach, including sets of comparative studies and applications
Author :European Conference of Ministers of Transport Publisher :OECD Publishing ISBN 13 :9282103781 Total Pages :286 pages Book Rating :4.2/5 (821 download)
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 ...
Book Synopsis Superelevation Distribution Methods and Transition Designs by : James A. Bonneson
Download or read book Superelevation Distribution Methods and Transition Designs written by James A. Bonneson and published by Transportation Research Board. This book was released on 2000 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Speed Management in Rural Communities Using Optical Speed Bars by : Abdoulaye Diogo Balde
Download or read book Speed Management in Rural Communities Using Optical Speed Bars written by Abdoulaye Diogo Balde and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Speed management has been a challenge, particularly in places where high-speed highways pass through. Due to high rate of fatalities and low budgets available, it is therefore necessary to identify low-cost effective approaches in reducing speeds. Optical Speed Bar (OSB) treatment is one such technique. This research makes an attempt to evaluate the effectiveness of OSBs in reducing approach speeds on two-lane, rural highways approaching small communities. Speed data were collected and analyzed "before" and "after" periods at five sites. Effectiveness of OSBs was evaluated using changes in mean and 85th percentile speeds under different categories by considering all vehicles, vehicle classification (two axles vs. more than two axles), day of the week (weekdays vs. weekends), and time of day (daytime vs. nighttime), as well as proportions exceeding posted speed limit, using t-test mean speeds, F-test for analysis of variance, and Z-test for proportions of vehicles exceeding posted speed limit between "before" and "after" datasets. Even though motorists were found to slow down on the approaches, in response to speed zones, speeding was noted. "Before" speed data indicated higher speeds than desired at the sites. The 85th percentile speeds were between 50 and 63 mph while the posted speed limits on the approaches were 45 mph at four sites, and the 85th percentile speed was about 42 mph at one site with an approach posted speed limit of 30 mph. The "before" degrees of noncompliance were up to 90 % of free-flowing vehicles at the sites. Speed data analysis showed significant reductions in speeds at ends of OSBs at four test sites. Mean and 85th percentile speeds and standard deviations were found reduced in the after periods. Percent reductions in mean speeds were between 1.2 and 8.2 %, with 85th percentile reductions between 3.2 and 8.9 %. At one site, no notable change in mean and 85th percentile speeds occurred at the end of OSBs, but significant increases in standard deviations were noted. Speed reductions were higher for two-axle vehicles, during the daytime and on weekdays with few exceptions. Results of the study showed, as other previous studies did, OSBs may have some minor effects on vehicle speeds. The study provides an indication that it may be possible to create safety improvements as result of using OSBs on the approach to a rural community. However, magnitude of speed reductions was generally small, though the reductions were statistically significant at the 95% confidence level. Because of the non-consistence of the magnitude of speed reductions at the test sites, no conclusion can be drawn as to how much OSB treatment reduced speeds. These results were based on "after" periods up to five months. Therefore, further study would be required to determine whether these safety improvements are sustained over an even longer time period. Even though minor speed reductions occurred, speeds observed at the sites were still higher than the posted speed limits, indicating OSBs were not effective enough in providing the desired speed limit compliance. Additional studies would be helpful to identify combinations of countermeasures, for instance OSBs and other techniques, effective in providing speed limit compliance.
Book Synopsis Guidelines for Selection of Speed Reduction Treatments at High-speed Intersections by : Brian Ray
Download or read book Guidelines for Selection of Speed Reduction Treatments at High-speed Intersections written by Brian Ray and published by Transportation Research Board. This book was released on 2008 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB¿s National Cooperative Highway Research Program (NCHRP) Report 613: Guidelines for Selection of Speed Reduction Treatments at High-Speed Intersections explores the effectiveness of geometric design features as well as signage and pavement markings to reduce vehicle speeds at high-speed intersections.
Book Synopsis Evaluation of Low Cost Traffic Calming for Rural Communities by : Shauna L. Hallmark
Download or read book Evaluation of Low Cost Traffic Calming for Rural Communities written by Shauna L. Hallmark and published by . This book was released on 2013 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The main goal of the research described in this report was to evaluate countermeasures that agencies can use to reduce speeds as drivers enter rural communities located on high-speed roadways. The objectives of this study were as follows: - Identify and summarize countermeasures used to manage speeds in transition zones; - Demonstrate the effectiveness of countermeasures that are practical for high- to low-speed transition zones; - Acquire additional information about countermeasures that may show promise but lack sufficient evidence of effectiveness; - Develop an application toolbox to assist small communities in selecting appropriate transition zones and effective countermeasures for entrances to small rural communities. The team solicited small communities that were interested in participating in the Phase II study and several communities were also recommended. The treatments evaluated were selected by carefully considering traffic-calming treatments that have been used effectively in other countries for small rural communities, as well as the information gained from the first phase of the project. The treatments evaluated are as follows: - Transverse speed bars; - Colored entrance treatment; - Temporary island; - Radar-activated speed limit sign; - Speed feedback sign; The toolbox publication and four focused tech briefs also cover the results of this work.
Download or read book Managing Speed written by and published by Transportation Research Board. This book was released on 1998 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB Special Report 254 - Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits reviews practices for setting and enforcing speed limits on all types of roads and provides guidance to state and local governments on appropriate methods of setting speed limits and related enforcement strategies. Following an executive summary, the report is presented in six chapters and five appendices.
Book Synopsis Speed Reduction Methods and Studies in Work Zones by : R. F. Benekohal
Download or read book Speed Reduction Methods and Studies in Work Zones written by R. F. Benekohal and published by . This book was released on 1992 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to determine the effectiveness of speed control methods and study traffic behavior in construction zones. This report provides a brief introduction and summary of findings from the following reports which were prepared as part of this study: (1) Evaluation and Summary of Studies in Speed Control Methods in Work Zones. (2) Evaluation of a Radar-Activated Horn System for Speed Control in Highway Maintenance Operations. (3) Survey of Driver's Opinion about Work Zone Traffic Control on a Rural Highway. (4) Speed Reduction Effects of Drone Radar in Rural Interstate Work Zones. (5) Speed Reduction Effects of Changeable Message Signs in a Construction Zone. (6) Effects of Police Presence on Speed in a Highway Work Zone: Circulating Marked Police Car Experiment. (7) Evaluation of Work Zone Speed Limit Signs with Strobe Lights. (8) Speed Reduction Profiles of Vehicles in a Highway Construction zone. Data only for those vehicles in free flow traffic are used for speed reduction evaluation. A vehicle was considered to be in free flow traffic when its time headway was greater than 5 seconds.
Book Synopsis A Guide for Reducing Speeding-Related Crashes by :
Download or read book A Guide for Reducing Speeding-Related Crashes written by and published by Transportation Research Board. This book was released on 2009 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Perceptual Countermeasures written by and published by . This book was released on 1999 with total page 88 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.
