Planning for Active Traffic Management in Virginia

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ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (82 download)

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Book Synopsis Planning for Active Traffic Management in Virginia by : Michael D. Fontaine

Download or read book Planning for Active Traffic Management in Virginia written by Michael D. Fontaine and published by . This book was released on 2012 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Traffic Management (ATM) applications, such as variable speed limits, queue warning systems, and dynamic ramp metering, have been shown to offer mobility and safety benefits. Yet because they differ from conventional capacity investments in terms of cost, service life, and operating requirements, how to incorporate them into the planning process is not clear. To facilitate such incorporation, this study developed guidelines for considering ATM deployments. The guidelines consist of four sets. The first set identifies required infrastructure and operational conditions, such as sensor placement and queueing behavior, to apply a particular ATM technique at a given site. The second set presents sketch planning analysis methods to estimate the operational and safety benefits of applying the particular technique at the site; these may be refined with the third set concerning a more detailed (and accurate) simulation analysis. The fourth set concerns continued monitoring of an ATM deployment at a given site. Also provided is a framework for incorporating ATM concepts into the regional planning process. The framework is illustrated with a hypothetical case study of variable speed limits implemented on I-66 in Virginia. Although Virginia metropolitan planning organizations (MPOs) and the Virginia Department of Transportation already consider operational initiatives to some degree within the planning process, a key finding of this study is that there are several ways to strengthen the inclusion of operational initiatives. These include (1) using the guidelines developed in this study; (2) linking ATM initiatives to the MPO's Congestion Management Process; (3) facilitating the computation of operational-related performance measures such as total vehicle-hours per day; and (4) emphasizing, when applicable, the safety and environmental aspects of ATM. The rationale for such aspects is not to promote ATM as being more effective than other types of investments but rather to compare ATM objectively with these other types of investments. For example, Appendix A illustrates how to compute a benefit-cost ratio where costs include capital and operations expenditures for the ATM and where benefits include monetized values of vehicle-houts of delay plus crash costs. In this manner, the benefit-cost ratio for an ATM project may be compared to the benefit-cost ratio for other operational or capacity projects.

Traffic Management Teams

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Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Traffic Management Teams by : Benjamin H. Cottrell

Download or read book Traffic Management Teams written by Benjamin H. Cottrell and published by . This book was released on 1988 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A traffic management team improves the overall traffic operations in an urban area, especially along urban corridors, through the communication, coordination, and cooperation of the transportation-related operational agencies in the area. Since various state, county, and city agencies are responsible for the ground transportation system in an urban area for optimal traffic management, it is essential that these agencies work together. Traffic management teams have proven to be a very successful means of coordinating the activities of transportation-related operational agencies in urban areas in Texas. A team typically consists of representatives of city and state traffic engineering offices, city and state law enforcement agencies, and the local transit authority. Other agencies are included if they are significantly involved in the operation of the urban corridors. Although most advantageous in cities with populations above 300,000, traffic management teams are useful for any size city where major travel corridors cross jurisdictional boundaries and where there is a need. to improve relationships between transportation operational agencies. The activities that are coordinated by a team include: (1) work zone traffic, (2) route improvements, (3) normal operations, (4) emergency planning, and (5) special event traffic handling. Guidelines for a traffic management team based on what has been successful for exisiting teams are presented. The guidelines include organizational structure, conduct of team meetings, keys to success, and measures of effectiveness. An action plan for implementation of traffic management teams in Virginia was developed. In the plan, urban areas where traffic management teams would be useful are identified, and steps to implement a traffic management team are identified. It is recommended that traffic management teams be implemented in all urban areas in Virginia. These teams would be especially advantageous for the Northern Virginia, Richmond, and Tidewater areas.

Implementing Active Traffic Management Strategies in the U.S.

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ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Implementing Active Traffic Management Strategies in the U.S. by : Virginia P. Sisiopiku

Download or read book Implementing Active Traffic Management Strategies in the U.S. written by Virginia P. Sisiopiku and published by . This book was released on 2009 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Guidelines for Developing Transportation Management Plans in Virginia

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ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Guidelines for Developing Transportation Management Plans in Virginia by : Benjamin H. Cottrell

Download or read book Guidelines for Developing Transportation Management Plans in Virginia written by Benjamin H. Cottrell and published by . This book was released on 2005 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: A transportation management plan (TMP) is a comprehensive program of traffic control, communication, operation, and demand management strategies designed to maintain acceptable levels of traffic flow in work zones. A systematic procedure and/or checklist is needed for developing plans to lessen the impact of construction projects that restore or improve highways. The purpose of this research was to establish guidelines for developing TMPs for construction projects. Three questions were addressed by the guidelines: When should a TMP be developed? How should a TMP be developed? What should be in a TMP? The Federal Highway Administration published the Final Rule on Work Zone Safety and Mobility on September 9, 2004. It facilitates the comprehensive consideration of the broader safety and mobility impacts of work zones across project development stages and the adoption of additional strategies including TMPs that help manage these impacts during project implementation. Guidelines for TMPs were derived from a draft implementation guide for the final rule with minor revisions. TMPs may consist of up to three components: (1) a temporary traffic control plan that describes traffic control measures used to facilitate road users through a work zone; (2) transportation operations strategies that will be used to ease work zone impacts; and (3) public information strategies to inform those affected by the project of the expected work zone impacts and changing conditions. At a minimum, each TMP should have a temporary traffic control plan. It is recommended that the Virginia Department of Transportation implement the guidelines developed in this study.

Evaluation of the Impact of the I-66 Active Traffic Management System

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Publisher :
ISBN 13 :
Total Pages : 65 pages
Book Rating : 4.:/5 (962 download)

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Book Synopsis Evaluation of the Impact of the I-66 Active Traffic Management System by : PilJin Chun

Download or read book Evaluation of the Impact of the I-66 Active Traffic Management System written by PilJin Chun and published by . This book was released on 2016 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Construction of a Virginia Department of Transportation project to install an Active Traffic Management (ATM) system on I-66 from U.S. 29 in Centreville to the Capital Beltway (I-495) was completed in September 2015. The project was constructed to improve safety and operations on I-66 through better management of existing roadway capacity. The main components of the ATM system were advisory variable speed limits (AVSL), queue warning systems (QWS), lane use control signs (LUCS), and hard shoulder running (HSR). Since ATM is still a relatively new approach in the United States, there was a need to analyze the effects of the I-66 ATM. Thus, a before-and-after study was conducted to quantify its effectiveness. The study used "after" data from October 2015-February 2016 (21 weeks) for the operations analysis and data from October 2015-December 2015 (13 weeks) for the safety analysis. Operations and safety evaluations were performed using limited data, so the results should be considered preliminary. The operational measures of effectiveness (MOEs) included ATM utilization rate, average travel time, travel time reliability, and total travel time delay. The safety MOEs included crash rates by type and severity and incident frequency. These MOEs were analyzed using INRIX travel time data, limited traffic volume point sensor data, police crash reports, and iPeMS traffic incident data. Segment-level analysis was performed to determine the segments that benefitted the most from ATM implementation. From this segment-level analysis, it was determined that HSR was the ATM component that led to most of the improvements on I-66. The results of the study indicate that the ATM produced positive operational and safety benefits across multiple MOEs. The ATM generally had limited operational and safety impacts during the weekday peak periods and some impacts during the midday and off-peak weekday periods. Average weekday travel times during the midday period in the off-peak direction typically improved by 2% to 6%. However, weekday peak period travel times and travel time reliability in the peak direction continued to degrade after ATM installation. This was not surprising given that HSR was already in use during the weekday peak periods before ATM activation and there has been a historic trend of increased travel times on the corridor. There were large operational benefits on weekends, with average travel times and travel time reliability improving by approximately 10% during the weekend peak periods. The weekend improvements were most likely due to the activation of HSR, which had not been active during weekends before ATM implementation, so the additional capacity served to alleviate congestion after activation. The safety analysis showed promising results for weekends, but no solid conclusions could be formed because of the limited data available for the safety analysis. A planning-level benefit-cost ratio was calculated based on the initial operational and safety benefits. The ATM had a benefit-cost ratio of 1.54 based on conservative assumptions that used only weekend operational improvements. This indicates that the I-66 ATM was a cost-efficient solution for improving operations and safety on I-66. The study recommends expansion of ATM in Virginia and further study.

Investigation of Solutions to Recurring Congestion on Freeways

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Investigation of Solutions to Recurring Congestion on Freeways by : Nicholas J. Mazzenga

Download or read book Investigation of Solutions to Recurring Congestion on Freeways written by Nicholas J. Mazzenga and published by . This book was released on 2009 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Persistent daily congestion, which has been increasing in recent years, is commonly experienced for several hours or more during the morning and evening on Virginia's urban freeways. Many of these roadways are at or near capacity, which causes severe delays and backups. One solution to reducing recurring congestion is to add capacity by building more lanes; however, this is usually the last resort as it is an expensive and time-consuming approach. Another strategy proposed to combat recurring congestion is to manage the current freeways so that they operate more efficiently. Reducing congestion through better managed freeways has numerous documented benefits, including reducing travel times, smoothing the traffic flow, increasing average fuel economy, shortening the rush hour period and reducing vehicle queuing. The highway operational strategies implemented to reduce recurring congestion have shown promising results abroad where there is an extensive use of active traffic management systems. To prove the effectiveness of a better managed freeway in mitigating recurring congestion, this study tested the effectiveness of an active traffic management system on a simulated model of I-66 and I-95 in Northern Virginia. Hard shoulders, variable speed limits, and ramp metering are several active traffic management systems simulated in this study. The simulation model was based on the geometric characteristics, ramp volumes, vehicle flows, and speeds of actual recorded conditions. Compared with the simulated control conditions, the results of the study indicated improvements in average fuel economy, travel delay, delay of the onset of congestion, and reduction of queues. The two active traffic management systems, i.e., variable speed limits and hard shoulders, showed the highest potential for reducing recurring congestion and should be considered as potential countermeasures in congested corridors. Although the capital costs of implementing these strategies would be high, the return on investment in the first year of operations is estimated at $500,000, with the potential to grow to as much as $8 million annually in subsequent years.

Evaluation of the Virginia Department of Transportation's Residential Traffic Calming Guide

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ISBN 13 :
Total Pages : 98 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Evaluation of the Virginia Department of Transportation's Residential Traffic Calming Guide by : Benjamin H. Cottrell

Download or read book Evaluation of the Virginia Department of Transportation's Residential Traffic Calming Guide written by Benjamin H. Cottrell and published by . This book was released on 2002 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to evaluate the Virginia Department of Transportation's (VDOT's) Residential Traffic Calming Guide. A 2-year pilot program served as a means to evaluate the Guide. The results of the evaluation enabled VDOT to strengthen its Guide based, to a large extent, on the lessons learned in the pilot program and to prepare for effective statewide implementation of this customer service-oriented program. This report documents the activities of the pilot program and VDOT's Residential Traffic Calming Committee, which administered the program. Numerous conclusions were drawn by the researchers based on specific experiences during the pilot program. The conclusions ranged from the usefulness of specific elements of the Guide, actions that worked well for a particular county, the description of side effects from having the pilot program in place, lessons learned from specific traffic calming projects, and a list of other activities that have occurred under the moniker of traffic calming. The recommended changes to the Guide that were identified during this effort and incorporated in the latest version of the Guide are described. An implementation plan outlines a suggested approach to transition from a pilot to a statewide program. The plan emphasizes the Guide as a component of a residential traffic management program.

Evaluation of the Impact of the I-66 Active Traffic Management System: Phase II

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ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (17 download)

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Book Synopsis Evaluation of the Impact of the I-66 Active Traffic Management System: Phase II by : Nancy Dutta

Download or read book Evaluation of the Impact of the I-66 Active Traffic Management System: Phase II written by Nancy Dutta and published by . This book was released on 2018 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: In early 2013, construction began on a Virginia Department of Transportation (VDOT) project to install an Active Traffic Management (ATM) system on I-66 from US 29 in Centreville to the Capital Beltway (I-495). Construction was completed in September 2015. This project was intended to improve safety and operations on I-66 without physically expanding the roadway through better management of the existing facility. The main components of the installed system included advisory variable speed limits (AVSL), lane use control signals (LUCS), and hard shoulder running (HSR). In 2016, the Virginia Transportation Research Council completed a Phase I evaluation of the system, covering its first 5 months of operation. A before-after study to quantify the effectiveness of the system was performed using “after” data from October 2015–February 2016 (21 weeks) for the operational analysis and data from October 2015–December 2015 (13 weeks) for the safety analysis. Since the operational and safety analyses were performed using limited amounts of data, the results were preliminary. The analysis showed several benefits attributable to dynamic HSR, but only 1.5 months of data were available with the AVSL active. In Phase II, the project was expanded to evaluate the long-term effects of the I-66 ATM system. For this phase, data from October 2015–November 2017 were used for the operational analysis and data from October 2015–December 2016 were used for the safety analysis. The operational measures of effectiveness were the same as for Phase I and included the ATM utilization rate, average travel time, and travel time reliability. In order to evaluate the safety impacts, the empirical Bayes method was used with safety performance functions developed for Virginia. Segment-level analysis was performed to determine the segments that had benefitted the most from the implementation of the ATM system. From this segment-level analysis, it was determined that HSR was the ATM component that created most of the improvements on I-66. The operational analysis showed that travel time improved significantly during off-peak hours after the ATM system was activated but that travel time during peak periods in the peak direction of travel generally did not improve. Further analysis revealed that most of these improvements occurred on the sections with HSR. The safety evaluation showed 6%, 10%, and 11% reductions in total (all severity), multiple-vehicle (all severity), and rear-end (all severity) crashes, respectively. Segment-level analysis again showed that the most safety benefits were found for locations with HSR (crash reductions of 25% to 40%), and no statistically significant reductions were found for sections with only AVSL and LUCS. The results of the analysis showed that HSR could produce statistically significant operational and safety benefits but that the effects of other ATM components were more limited. The study recommends that VDOT’s Operations Division and regions use the results from I-66 to inform decisions about future ATM and HSR use in Virginia.

Northern Virginia Freeway Management Team Operating Manual

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (23 download)

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Book Synopsis Northern Virginia Freeway Management Team Operating Manual by :

Download or read book Northern Virginia Freeway Management Team Operating Manual written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Active Traffic Management for Arterials

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Publisher : Transportation Research Board
ISBN 13 : 0309223970
Total Pages : 65 pages
Book Rating : 4.3/5 (92 download)

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Book Synopsis Active Traffic Management for Arterials by : Richard Gerhard Dowling

Download or read book Active Traffic Management for Arterials written by Richard Gerhard Dowling and published by Transportation Research Board. This book was released on 2013 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Active traffic management (ATM) includes a suite of traffic management and control strategies that improve operational efficiency. These strategies are used to manage traffic flow to enhance capacity and safety. This synthesis documents the state of the practice associated with designing, implementing, and operating ATM on arterial roadways."--Preface.

Updating the Transportation Plans in Virginia's Small Urban Areas

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ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Updating the Transportation Plans in Virginia's Small Urban Areas by : C. B. Gay

Download or read book Updating the Transportation Plans in Virginia's Small Urban Areas written by C. B. Gay and published by . This book was released on 1987 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Transportation Planning Division (TPD) of the Virginia Department of Transportation is responsible for developing transportation plans for areas in the state having a population greater than 3,500. Although transportation forecasting procedures for areas of 50,000 or more are well defined and uniform throughout the state, the procedures used for areas of under 50,000 population vary. Based on a review of available literature and a survey of the forecasting procedures being used by state transportation agencies throughout the country, it was concluded that the procedures currently being used are valid. A generalized process for formulating a forecasting procedure for specific areas is recommended, along with several suggestions to be considered when the procedures are being developed. Additionally, the report provides a summary of forecasting techniques currently in use.

Transportation Planning Handbook

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Publisher : John Wiley & Sons
ISBN 13 : 1118762401
Total Pages : 1200 pages
Book Rating : 4.1/5 (187 download)

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

Download or read book Transportation Planning Handbook written by ITE (Institute of Transportation Engineers) and published by John Wiley & Sons. This book was released on 2016-07-11 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-disciplinary approach to transportation planningfundamentals The Transportation Planning Handbook is a comprehensive,practice-oriented reference that presents the fundamental conceptsof transportation planning alongside proven techniques. This newfourth edition is more strongly focused on serving the needs of allusers, the role of safety in the planning process, andtransportation planning in the context of societal concerns,including the development of more sustainable transportationsolutions. The content structure has been redesigned with a newformat that promotes a more functionally driven multimodal approachto planning, design, and implementation, including guidance towardthe latest tools and technology. The material has been updated toreflect the latest changes to major transportation resources suchas the HCM, MUTCD, HSM, and more, including the most current ADAaccessibility regulations. Transportation planning has historically followed the rationalplanning model of defining objectives, identifying problems,generating and evaluating alternatives, and developing plans.Planners are increasingly expected to adopt a moremulti-disciplinary approach, especially in light of the risingimportance of sustainability and environmental concerns. This bookpresents the fundamentals of transportation planning in amultidisciplinary context, giving readers a practical reference forday-to-day answers. Serve the needs of all users Incorporate safety into the planning process Examine the latest transportation planning softwarepackages Get up to date on the latest standards, recommendations, andcodes Developed by The Institute of Transportation Engineers, thisbook is the culmination of over seventy years of transportationplanning solutions, fully updated to reflect the needs of achanging society. For a comprehensive guide with practical answers,The Transportation Planning Handbook is an essentialreference.

A Strategic Plan for the Design and Creation of a Safety Management System for the Commonwealth of Virginia

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ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis A Strategic Plan for the Design and Creation of a Safety Management System for the Commonwealth of Virginia by : Jack D. Jernigan

Download or read book A Strategic Plan for the Design and Creation of a Safety Management System for the Commonwealth of Virginia written by Jack D. Jernigan and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991 required that states develop systems for managing highway pavement, bridges, safety, congestion, public transportation, and intermodal transportation. This document is Virginia's work plan for establishing and implementing the required safety management system (SMS). Although Virginia already has many of the components necessary for an SMS, an inventory and assessment of Virginia's highway safety-related programs revealed five challenges Virginia needs to meet to build its SMS. These challenges are (1) to coordinate and integrate safety efforts more fully; (2) to provide guidelines for the replacement and upgrade of safety hardware, highway elements, and operational features; (3) to increase the sharing of data and the integration of data systems that support transportation safety; (4) to provide for more rigorous evaluation of transportation safety efforts; and (5) to target injury reduction. A schedule of activities needed to implement Virginia's SMS by October 1, 1996, is included.

Fort Lee Virginia Traffic Demand Management Plan

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Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (91 download)

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Book Synopsis Fort Lee Virginia Traffic Demand Management Plan by : Adam D. Clark

Download or read book Fort Lee Virginia Traffic Demand Management Plan written by Adam D. Clark and published by . This book was released on 2008 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Development of Performance Assessment Guidelines for Virginia's Work Zone Transportation Management Plans

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Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (82 download)

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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 73 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.

10- Year Strategic Plan for Virginia Department of Transportation Geographic Information System

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (368 download)

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Book Synopsis 10- Year Strategic Plan for Virginia Department of Transportation Geographic Information System by : Virginia. Department of Transportation

Download or read book 10- Year Strategic Plan for Virginia Department of Transportation Geographic Information System written by Virginia. Department of Transportation and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Planning Tool for Active Traffic Management Combining Microsimulation and Dynamic Traffic Assignment

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Publisher :
ISBN 13 :
Total Pages : 133 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis A Planning Tool for Active Traffic Management Combining Microsimulation and Dynamic Traffic Assignment by : Stephen David Boyles

Download or read book A Planning Tool for Active Traffic Management Combining Microsimulation and Dynamic Traffic Assignment written by Stephen David Boyles and published by . This book was released on 2018 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: