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Considerations For The Development Of Work Zone Mobility Performance Measures And Thresholds For Virginia Freeways
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Book Synopsis Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways by : Michael D. Fontaine
Download or read book Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways written by Michael D. Fontaine and published by . This book was released on 2014 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration has been encouraging states to improve their monitoring and tracking of the mobility impacts of work zones. The use of mobility performance measures will enable agencies to assess better the contribution of work zones to network congestion; to identify specific projects that are in need of remedial action; and potentially to assess penalties to contractors creating excessive, avoidable negative impacts. Although the Virginia Department of Transportation (VDOT) has defined allowable lane closure hours for the interstate system, VDOT has not defined specific performance measures and thresholds for what constitutes unacceptable work zone mobility impacts. Performance measures and thresholds have been developed by a number of other states, so there is a need to determine whether these could be adapted for use by VDOT. This study explored issues related to a potential work zone mobility performance measurement program for Virginia. The issues investigated included identification of potential performance measures, definition of performance thresholds, and recommendations for data sources for performance measurement calculations. This information was synthesized from information regarding the experiences of selected states and experiences from a series of case studies that used data from Virginia work zones. The review of experiences in selected other states found that delay and queue lengths were the performance measures used most often by the states studied. The Virginia case studies focused on the use of private sector data to generate mobility performance measures and found that the level of spatial aggregation in rural areas could inhibit the ability to generate accurate performance measures, although granularity was better on urban roads. The level of temporal aggregation was also found to influence performance measures. The research identified a number of key issues that VDOT should consider as a work zone mobility performance measures program is developed. The report recommends that VDOT develop a pilot program that focuses on urban interstates initially and convene a task group to develop formal policies and procedures for use in the state.
Book Synopsis Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways by : Michael D. Fontaine
Download or read book Considerations for the Development of Work Zone Mobility Performance Measures and Thresholds for Virginia Freeways written by Michael D. Fontaine and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration has been encouraging states to improve their monitoring and tracking of the mobility impacts of work zones. The use of mobility performance measures will enable agencies to assess better the contribution of work zones to network congestion; to identify specific projects that are in need of remedial action; and potentially to assess penalties to contractors creating excessive, avoidable negative impacts. Although the Virginia Department of Transportation (VDOT) has defined allowable lane closure hours for the interstate system, VDOT has not defined specific performance measures and thresholds for what constitutes unacceptable work zone mobility impacts. Performance measures and thresholds have been developed by a number of other states, so there is a need to determine whether these could be adapted for use by VDOT. This study explored issues related to a potential work zone mobility performance measurement program for Virginia. The issues investigated included identification of potential performance measures, definition of performance thresholds, and recommendations for data sources for performance measurement calculations. This information was synthesized from information regarding the experiences of selected states and experiences from a series of case studies that used data from Virginia work zones. The review of experiences in selected other states found that delay and queue lengths were the performance measures used most often by the states studied. The Virginia case studies focused on the use of private sector data to generate mobility performance measures and found that the level of spatial aggregation in rural areas could inhibit the ability to generate accurate performance measures, although granularity was better on urban roads. The level of temporal aggregation was also found to influence performance measures. The research identified a number of key issues that VDOT should consider as a work zone mobility performance measures program is developed. The report recommends that VDOT develop a pilot program that focuses on urban interstates initially and convene a task group to develop formal policies and procedures for use in the state.
Book Synopsis Work Zone Safety Performance Measures for Virginia by : Young-Jun Kweon
Download or read book Work Zone Safety Performance Measures for Virginia written by Young-Jun Kweon and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Virginia Department of Transportation (VDOT) is interested in refining work zone safety performance measures so that safety can be better assessed, monitored, and compared over time. VDOT currently uses the number of fatalities and the number of serious injuries in work zone traffic crashes as statewide performance measures. Although these are important direct safety metrics, they do not reflect differences in work zone exposure measures, such as the number of work zones. As a result, it is not always clear whether changes in work zone crashes are being caused by safety problems or changes in the amount of road work. This study developed and improved statewide work zone safety performance measures for Virginia by combining information from two sources in VDOT: the VDOT crash database containing information in police crash reports and the Virginia Traffic Information Management System (VaTraffic) database containing information on incidents, work zones, weather conditions, etc. Count measures, such as the number of fatal work zone crashes, were calculated from the crash database. Exposure measures, such as work zone-hours, were calculated from the VaTraffic database. Combining these two types of measures resulted in rate measures such as number of fatal work zone crashes per 1,000 work zone-hours. Unfortunately, existing databases still have a number of limitations that prohibit the calculation of ideal rate-based performance measures. Based on currently available data, four performance measures were found to be appropriate for monitoring and evaluating the statewide safety performance of work zones, and eight summary measures were identified in order to obtain further insights regarding statewide safety issues at work zones in Virginia. These measures were selected using the results of statistical analyses and input from a technical review panel consisting of work zone coordinators and traffic engineers. An important finding of this study was that work zone safety assessments can change significantly depending on whether exposure measures are included. Based on count measures, work zones on non-interstate highways appear to have safety records equal to or better than those on interstate highways. However, when exposure measures were incorporated, work zones on interstate highways were shown to have better safety records. This study recommends that VDOT immediately begin using the performance measures identified in this study.
Book Synopsis Development of Performance Assessment Guidelines for Virginia's Work Zone Transportation Management Plans by : Anthony A. Gallo
Download or read book Development of Performance Assessment Guidelines for Virginia's Work Zone Transportation Management Plans written by Anthony A. Gallo and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As America's roadways are becoming more congested and in need of maintenance and repair, management of traffic through work zones is a major issue for state departments of transportation. To assist states with this challenge, in 2004, the Federal Highway Administration (FHWA) published its "Final Rule on Work Zone Safety and Mobility," which mandated that state DOTs develop transportation management plans (TMPs) for all federally funded roadway construction projects. The Virginia Department of Transportation (VDOT) now requires TMPs for all projects, regardless of funding source. Part of federal and Virginia TMP requirements are to monitor and assess traffic impacts, including a post-construction evaluation of the TMP. Currently, TMPs are not being assessed following individual construction projects, and VDOT does not yet have a formally established process to assess TMP performance throughout its districts and regions. The purpose of this project was to develop a set of guidelines to assist VDOT's work zone personnel and contractors with evaluating TMP performance. The research methodology examines existing literature on work zone evaluation strategies. Thirty state DOTs, as well as personnel within VDOT, were surveyed to explore TMP assessment practices. Finally, two work zone case studies from within the Commonwealth of Virginia were examined. The results of this research effort were used to develop Guidelines for TMP Performance Assessment, with aid and review from a VDOT Performance Assessment Task Group. While these new requirements may add up-front costs to project engineering, VDOT will benefit by having a methodology in place to identify and measure successful strategies to manage safety and mobility impacts from work zones.
Book Synopsis Evaluating the Feasibility of Incorporating Mobility-based Work Zone Traffic Control Performance Measures in Highway Construction Project Specifications by : Mitsuru Saito
Download or read book Evaluating the Feasibility of Incorporating Mobility-based Work Zone Traffic Control Performance Measures in Highway Construction Project Specifications written by Mitsuru Saito and published by . This book was released on 2013 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: UDOT funded a study to develop guidelines for implementing mobility-based performance specifications to manage traffic flow in work zones. The core idea of using mobility-based performance specifications is that they can give the contractor more flexibility in construction work scheduling and maintaining an acceptable level of traffic flow. If the level of traffic flow is not maintained, the contractor is assessed a financial penalty. This is the basic concept of mobility-based performance specifications. The penalty is determined by the amount of time where the flow is not maintained at a predetermined condition.
Book Synopsis Implementing the Rule on Work Zone Safety and Mobility by : Tracy Scriba
Download or read book Implementing the Rule on Work Zone Safety and Mobility written by Tracy Scriba and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Work Zone Operations Best Practices Guidebook by : U.s. Department of Transportation
Download or read book Work Zone Operations Best Practices Guidebook written by U.s. Department of Transportation and published by CreateSpace. This book was released on 2015-02-21 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Work Zone Best Practices Guidebook provides an easily accessible compilation of work zone operations practices used and recommended by various States and localities around the country. The Guidebook is a reference document that can be updated with new approaches, technologies, and practices for effectively managing work zones and reducing the impacts of work zones on mobility and safety as they are identified. The best practices are descriptive, not prescriptive. They describe approaches that have been successfully used by transportation agencies, along with contact information to find out more from the agency using the practice. Each organization must determine which of these practices are best suited for its particular situation, considering all the site-specific factors that affect work zone operations.
Book Synopsis Strategies for Work Zone Transportation Management Plans by : Leverson Boodlal
Download or read book Strategies for Work Zone Transportation Management Plans written by Leverson Boodlal and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the ways a state department of transportation or other transportation agency can address work zone safety and other impacts is to develop and implement a Transportation Management Plan (TMP). The TRB National Cooperative Highway Research Program's NCHRP Research Report 945: Strategies for Work Zone Transportation Management Plans provides a practitioner-ready guidebook on how to select and implement strategies that improve safety and traffic operations in roadway construction work zones. Supplemental materials to the report include NCHRP Web-Only Document 276: Evaluating Strategies for Work ZoneTransportation Management Plans; fact sheets on ramp meter, reversible lane, and truck restrictions; and guidebook appendices.
Book Synopsis Pedestrian Facilities Users Guide: Providing Safety and Mobility by : Charles V. Zegeer
Download or read book Pedestrian Facilities Users Guide: Providing Safety and Mobility written by Charles V. Zegeer and published by DIANE Publishing. This book was released on 2002 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide is intended to provide information on how to identify safety and mobility needs for pedestrians with the roadway right-of-way. Useful for engineers, planners, safety professionals and decision-makers, the guide covers such topics as: the Walking Environment including sidewalks, curb ramps, crosswalks, roadway lighting and pedestrian over and under passes; Roadway Design including bicycle lanes, roadway narrowing, reducing the number of lanes, one-way/two-way streets, right-turn slip lanes and raised medians; Intersections with roundabouts, T-intersections and median barriers; and Traffic calming designs.
Author :United States. Federal Highway Administration. Office of Highway Information Management Publisher : ISBN 13 : Total Pages :208 pages Book Rating :4.3/5 (555 download)
Book Synopsis Traffic Monitoring Guide by : United States. Federal Highway Administration. Office of Highway Information Management
Download or read book Traffic Monitoring Guide written by United States. Federal Highway Administration. Office of Highway Information Management and published by . This book was released on 1992 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geometric Design Practices for European Roads by : James O. Brewer
Download or read book Geometric Design Practices for European Roads written by James O. Brewer and published by DIANE Publishing. This book was released on 2001 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Book Synopsis A Policy on Design Standards--interstate System by :
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:
Book Synopsis A Guide for Achieving Flexibility in Highway Design by :
Download or read book A Guide for Achieving Flexibility in Highway Design written by and published by AASHTO. This book was released on 2004 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Context-sensitive solutions (CSS) reflect the need to consider highway projects as more than just transportation facilities. Depending on how highway projects are integrated into the community, they can have far-reaching impacts beyond their traffic or transportation function. CSS is a comprehensive process that brings stakeholders together in a positive, proactive environment to develop projects that not only meet transportation needs, but also improve or enhance the community. Achieving a flexible, context-sensitive design solution requires designers to fully understand the reasons behind the processes, design values, and design procedures that are used. This AASHTO Guide shows highway designers how to think flexibly, how to recognize the many choices and options they have, and how to arrive at the best solution for the particular situation or context. It also strives to emphasize that flexible design does not necessarily entail a fundamentally new design process, but that it can be integrated into the existing transportation culture. This publication represents a major step toward institutionalizing CSS into state transportation departments and other agencies charged with transportation project development.
Book Synopsis Flagging Handbook by : United States. Federal Highway Administration
Download or read book Flagging Handbook written by United States. Federal Highway Administration and published by . This book was released on 1980 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Highway Functional Classification by : United States. Federal Highway Administration
Download or read book Highway Functional Classification written by United States. Federal Highway Administration and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Quality Compendium written by and published by . This book was released on 2007 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
