Download or read book Comprehensive Assessment of Managed Lane Performance and Characteristics written by Chih-Lin Chung and published by . This book was released on 2010 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Managed lanes, specifically for high occupancy vehicle (HOV) and high occupancy and toll (HOT) lanes, face such undiscovered issues as their performance regarding speed dispersion, equilibrium relationships with general purpose (GP) lanes in terms of speed and level of service, and joint effects of managed lane policies like eligibility, access control, and pricing. The goal of this dissertation is to provide theoretical and practical procedures of managed lane operation assessment under four modules. The first module correlates speed dispersion with the fundamental traffic flow parameters. It reveals that coefficients of variation of speed for HOV and GP lanes are exponential with occupancy, negative exponential with space mean speed, and two-phase linear to flow. The second module proposes two speed equilibrium schemes for HOV and GP lanes. The schemes present distinct speed pairs by congestion level, but speed of HOV lanes is identically ensured no less than GP lanes. The second module also develops an HOT scheme that adopts value of time and value of reliability to formulate HOT tolls with respect to speed of GP lanes. The third module identifies lane management and congestion hot spots by contrasting the level of service of managed lanes and GP lanes in deterministic and stochastic ways. The case study indicates that lane management hot spots are spatially and temporally dynamic, and a non-hot spot less likely turns to congestion without being a lane management hot spot as transition, or vise versa. The last module develops two macroscopic approaches to screening the policy combination set of managed lanes. The optimal/non-inferior policies for non-eliminated combinations are verified by multi-objective binary integer linear programming.
Download or read book Monitoring and Evaluating Managed Lane Facility Performance written by Jodi Louise Carson and published by . This book was released on 2005 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much of the progress made in advancing the state of the practice in performance monitoring and evaluation has considered general freeway facilities and lacks specificity for managed lane facilities. Managed lane facilities are unique, typically requiring a higher degree of active (sometimes real-time) management, addressing goals and objectives that are inconsistent with the general freeway facility (i.e., revenue generation, person throughput), and accessing an exclusive set of management tools (i.e., gate closures). To address these potential differences between facilities, this investigation was conducted to isolate and document the best performance monitoring and evaluation practices and principles explicitly for managed lane facilities. Despite the novelty of managed lanes as a traffic management strategy, the diversity of managed lane facility types, and the breadth of motivating factors for managed lane implementation, some general consistency in practice was observed with respect to performance monitoring and evaluation. Common goals, objectives, and performance measures were observed across similar facility types. Significant differences were also observed across similar facility types with respect to observed performance outcomes and evaluation methodologies. Differences in observed performance outcomes are likely explained by the variety in facility design (i.e., length of facility, accessibility, etc.) and operation (i.e., eligibility requirements, toll rates, etc.), even within a similar facility type. Differences in the evaluation methodologies used to arrive at these observed performance outcomes are likely reflective of the a vailable resources for analysis at the time of evaluation and the evolving state of analysis methodologies.
Download or read book Guidelines for Implementing Managed Lanes written by Kay Fitzpatrick and published by . This book was released on 2016 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Managed Lanes on Freeway Facilities written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents and presents the results of a study for evaluating the performance of Managed Lane (ML) facilities on freeways. A methodological framework is for analyzing freeway facilities with ML and General Purpose (GP) lanes operated in parallel. The framework acknowledges that the composition and behavior characteristics of the ML traffic stream are expected to be quite different from those for the GP lanes in terms of traffic volume, free-flow speed, capacity, vehicle type, etc. It further considers that there may still be certain levels of interactions between these two lane groups, especially for those facilities that do not have physical (barrier) separations, either en route or at access points, between them. Within that framework, different modules were developed based on sensor-measured or simulation-generated data, including the characterization of ML speed-flow relationship, the frictional effect of adjacent lane traffic speed, the adjustment for cross-weave effects, and the development of side-by-side facility-wide ML and GP performance measures. Thus, the proposed methodology is sensitive to different GP and ML segment types (basic, weaving, etc.) and separation styles (none, buffer, barrier), and is capable of analyzing extended facilities across multiple time periods.
Download or read book Findings from Texas written by and published by . This book was released on 2005 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Texas cities are currently considering the managed lane concept for major freeway projects. As a new concept of operating freeways in a flexible and possibly dynamic manner, the managed lane concept has a limited experience base, thereby creating a knowledge vacuum in emerging key areas that are critical for effective implementation. . Complicating the effort is the rapid progress of several freeway improvement projects in Texas in which TxDOT is proposing managed lane operations. The operational experience both in Texas and nationally for managed lanes is minimal, particularly for extensive freeway reconstruction projects. The managed lane projects currently in existence involve retrofits of existing freeway sections within highly fixed access, geometric, and operational configurations, and established eligibility considerations. There are few projects in operation from which to draw experiential data on the implementation of managed lane freeway sections with complex or multiple operational strategies, including variations in eligible vehicle user groups by time of day. The objectives of this project are to investigate the complex and interrelated issues surrounding the safe and efficient operation of managed lanes using various operating strategies and to develop a managed lanes manual to help the Texas Department of Transportation (TxDOT) make informed planning, design, and operational decisions when considering these facilities for its jurisdiction. This document presents the critical research results obtained over the five years of this project.
Download or read book Freeway Operations Regional Systems Management and Operations Managed Lanes 2014 written by and published by . This book was released on 2014 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's Transportation Research Record: Journal of the Transportation Research Board, No. 2470 consists of 18 papers that explore a comprehensive framework for planning and assessment of traffic incident management programs; evaluation of hero-coordinated ramp metering installation; online scalable approach for identifying secondary crashes; freeway travel time forecasting; real-time queue-end detection on freeways with floating car data; mainstream traffic flow control at sags; design of emergency response system to minimize incident impacts; and estimation of congestion-related travel time losses on freeways. This issue of the TRR also examines combining ramp metering and variable speed limits to improve motorway performance; use of data from point detectors and automatic vehicle identification to compare instantaneous and experienced travel times; identification of congestion factors for active transportation and demand management; potential benefits of integrated corridor management; optimal control of motorways by ramp metering, variable speed limits, and hard-shoulder running; accounting for travel time reliability and trip purpose in an agent-based approach to toll pricing; collection, screening, and evaluation of vehicle occupancy data; the use of psychological questions to help predict managed lane use; value of travel time savings; and highoccupancy toll lanes impact on commuter bus and vanpool occupancy." -- Publisher's description.
Download or read book Evaluation and Performance Measurement of Congestion Pricing Projects written by Benjamin Gerry Perez and published by Transportation Research Board. This book was released on 2011 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: "These guidelines are intended for transportation practitioners involved in the planning, design, and operation of congestion-pricing projects. They will help agencies select or develop measures to evaluate these projects, collect the necessary data, track performance, and communicate the results to decision makers, users, and the general public. These guidelines will be valuable to all agencies who are using or considering congestion pricing to manage their roadway capacity."--Foreword.
Download or read book Guide for High occupancy Vehicle HOV Facilities written by American Association of State Highway and Transportation Officials and published by American Association of State Highway & Transportation Officials. This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Policy Options Evaluation Tool for Managed Lanes POET ML Users Guide and Methodology Description written by Andrew Smith and published by . This book was released on 2008 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: "User's guide for a sketch planning tool for exploring policy alternatives. It is intended for an audience of transportation professionals responsible for planning, designing, funding, operating, enforcing, monitoring, and managing HOV and HOT lanes, and considering conversion of HOV to HOT lanes"--Technical report documentation page.
Download or read book Assessment of Managed Lanes Options written by Ozge Cavusoglu and published by . This book was released on 2008 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Managed Lanes Handbook written by and published by . This book was released on 2005 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 2016-01-13 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.
Download or read book Monitoring and Evaluating Managed Lane Facility Performance written by Jodi Louise Carson and published by . This book was released on 2005 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Risk Assessment and Allocation for Highway Construction Management written by Keith R. Molenaar and published by . This book was released on 2006 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measuring and Improving Infrastructure Performance written by National Research Council and published by National Academies Press. This book was released on 1995-01-01 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nation's physical infrastructure facilitates movement of people and goods; provides safe water; provides energy when and where needed; removes wastes; enables rapid communications; and generally supports our economy and quality of life. Developing a framework for guiding attempts at measuring the performance of infrastructure systems and grappling with the concept of defining good performance are the major themes of this book. Focusing on urban regions, within a context of national policy, the volume provides the basis for further in-depth analysis and application at the local, regional, state, and national levels.
Download or read book A Methodology for Integrating Roadway Safety Hardware Management Into the Overall Highway Asset Management Program written by Zongzhi Li and published by . This book was released on 2008 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
