Download or read book Toolbox to Assess Tradeoffs Between Safety Operations and Air Quality for Intersection and Access Management Strategies written by and published by . This book was released on 2008 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant transportation agency resources are allocated to meet maintenance, operations, safety, and air quality goals. Although there is a significant amount of overlap between these areas, decisions to meet agency goals in one area often do not consider goals in the others and, as a result, miss opportunities to leverage funds and make better informed decisions overall. There are a number of areas of overlap between capital improvements designed to improve operations, maintenance, safety, and air quality goals that provide a rich opportunity to leverage funds and use resources more cost-effectively while meeting agency goals in two or more of the areas. The objective of this research is to develop analytical tools that can efficiently evaluate common capital projects used to meet agency goals in one area (operations, safety, air quality, and maintenance) but that also have a significant impact on the others.
Download or read book Access Management written by and published by . This book was released on 1996 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Iowa Department of Transportation's Access Management Task Force was established as part of the Iowa Department of Transportation's overall Safety Management System (SMS) effort. The goal of the Access Management Task Force is to develop a program designed to educate and market the concept and benefits of access management to landowners and developers, professional planners and engineers, planning and zoning staff members, appointed and elected officials, and motorists. Access management is pursued through the design and control of driveways, curb cuts, turning movements, interior circulation of parking lots, and public street connections and intersections. Usually, state highways or major urban and suburban arterial streets are the targets of access management projects. Access management is also a concern on main county roads when there is a transition from a rural environment to a town or city.
Download or read book Transportation Control Strategy Development for New York Metropolitan Area written by TRW Inc. Transportation and Environmental Operations and published by . This book was released on 1972 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Congestion Mitigation and Air Quality Improvement Program written by National Research Council (U.S.). Committee for the Evaluation of the Congestion Mitigation and Air Quality Improvement Program and published by Transportation Research Board. This book was released on 2002 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Congestion Mitigation and Air Quality Improvement (CMAQ) program was enacted as part of the surface transportation legislation. This work recommends that Congress retain the sole federal surface transportation program that funds projects to reduce pollution and traffic congestion in areas that must comply with national air quality standards.
Download or read book A Guidebook for Including Access Management in Transportation Planning written by David C. Rose and published by Transportation Research Board. This book was released on 2005 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guidebook is for transportation agency managers, engineers, and planners who want their agencies to use the planning process to implement a systematic and consistent approach to access management. For employees who are dealing with the consequences of poor access management at the project and operational levels, the guidance provides a resource that outlines the specific steps their agencies can take to establish a policy and planning basis for implementing access management best practices. This guidance focuses on how to use the planning process to establish the implementing mechanisms that will result in the application of access management principles.
Download or read book The Congestion Mitigation and Air Quality Improvement Program written by United States. Federal Highway Administration and published by . This book was released on 2000 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Near Roadway Air Quality written by Alexander Anthony Karner and published by ProQuest. This book was released on 2008 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in the roadside environment has been steadily increasing since the late 1970s, driven by possible links between poor air quality near heavily traveled roads and health outcomes in exposed individuals. Substantial generators of local traffic, such as marine terminals can bring the additional problems of noise and decreased pedestrian safety and accessibility to streets lined with schools and homes. This thesis has two aims: to synthesize the knowledge on observed air pollution concentrations near roadways, and to assess the air quality effects of a local diesel truck traffic mitigation project while providing an overview of its planning. Each is addressed in its own part. The first presents the results of a meta-analysis of observed near roadway air pollution concentrations. In total, 34 studies were identified from which 572 pollutant concentrations and their associated distances from the road were extracted. Normalization was necessary to increase data commensurability. Using the edge of road concentration to normalize grouped observations more closely than using the background concentration, but the results of two statistical analyses (local regression and analysis of variance) performed on both datasets showed broadly consistent results: carbon monoxide, elemental carbon and surrogates, metal deposition, oxides of nitrogen, non-alkane hydrocarbons, and ultrafine particle number are consistently elevated, reaching between 1.7-20 times above background at the edge of road, depending on pollutant and normalization method. Most pollutants decay to background by 150 m from the edge of road. The second part examined a series of measures to mitigate local diesel truck impacts at two port facilities while improving traffic operations in the communities of Barrio Logan, San Diego and Old Town, National City, both low-income communities of color. This subject moved the thesis beyond an exclusive focus on air quality and provided the first documentation of the unique process and solutions which emerged following the collaboration of all major stakeholders. Local truck impacts and heavily mixed land uses provided the impetus for the mitigation which resulted in a permanent rerouting of all trucks over five tons to roads outside of the communities. Previous assessments of the project described the extent to which mitigation strategies are expected to improve traffic operations or claimed air quality improvements without carrying out an emissions analysis. We performed a local-scale analysis of the effects of traffic volume and speed changes on diesel particulate matter (DPM) emissions in Barrio Logan. We find that, while the mitigation did not result in improved regional air quality, it did significantly improve local air quality in the primary affected corridor, resulting in a 99 percent reduction in DPM emissions, and an 87 percent reduction in diesel truck vehicle miles traveled.
Download or read book Impacts of Access Management Techniques written by Jerome S. Gluck and published by Transportation Research Board. This book was released on 1999 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Planning and Air Quality III written by Simon Washington and published by . This book was released on 1998 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection contains 10 papers presented at Transportation Planning and Air Quality III Conference, held in Lake Tahoe, California, August 17-20, 1997.
Download or read book Toolbox on Intersection Safety and Design written by and published by . This book was released on 2004 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents an overview of principles and practices that will help readers develop intersection designs that achieve the highest levels of safety, mobility and cost-effectiveness. It demonstrates practical design measures and tools that will improve intersection safety, provides examples of effective applications, and discusses experiences with innovative solutions.
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 Clean Air and Highway Transportation written by Research and Technology Coordinating Committee (U.S.) and published by . This book was released on 1997 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report considers specific research needs relating to surface transportation and air quality. The greatest immediate need of transportation policy makers and administrators for environmental information and analysis is probably in support of programs for complying with federal clean air regulations. Water quality, noise, and land use are environmental concerns linked to transportation, and these issues will be important considerations in transportation policy making in the future.
Download or read book Identifying and Quantifying Operational and Safety Performance Measures for Access Management written by William L. Eisele and published by . This book was released on 2005 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Access Management Toolkit written by and published by . This book was released on 2000 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Operational Effects of Geometrics and Access Management written by and published by . This book was released on 2015 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's Transportation Research Record: Journal of the Transportation Research Board, No. 2486, explores 10 papers related to operational effects of geometrics and access management in the transportation sector, including: Safety Evaluation of Diverging Diamond Interchanges in Missouri, Empirical Evaluation of J-Turn Intersection Performance: Analysis of Conflict Measures and Crashes, Design Criteria for Minimum Passing Zone Lengths: Operational Efficiency and Safety Considerations, Analysis of Vehicle Speeds and Speed Differentials in Curves, Pedestrian and Bicyclist Accommodations and Crossings on Superstreets, Effect of Stopping Sight Distance on Crashes at Crest Vertical Curves on Rural Two-Lane Highways, Use of Decision Assistance Curves in Advanced Warrant Analysis for Indirect Left-Turn Intersections, Influences of Cross-Sectional Design Elements at Urban Arterial Driveway Locations, Use of Access Travel Time to Estimate the Impact of Driveway Restrictions on Corner Lot Developments, Economic Assessment of Access Management Projects in the Houston, Texas, Region." -- Publisher's description
Download or read book NCHRP Report written by and published by . This book was released on 1964 with total page 135 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.
