Download or read book Highway Planning and Operations for the Dallas District written by and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freeway bottlenecks are a primary source of congestion, and the removal of several bottlenecks in Dallas has shown a favorable reduction in delay. Solving a freeway bottleneck can be highly complex, and existing analytical tools have been inadequate for congested conditions. Driving behaviors in congestion were observed at several sites on freeways in Dallas and include queue jumping, weaving in congestion, and shoulder driving. These observations have furthered the understanding of freeway operations in congestion. A survey of what other agencies are using to simulate congested freeway operations showed that FRESIM is the most widely used simulation tool. Several adaptations to the use of FRESIM were identified and tested. These refinements to the application of the FRESIM model allow for better analysis of congestion and bottleneck improvements. Assessing the benefit a bottleneck removal provides to the motorists remains incomplete. In cases where the bottleneck is simple and well-defined, benefits may be fairly easy to estimate. However, the benefits to motorists are not always obvious. This research enhances the reliability of bottleneck improvement benefits by identifying options to the traditional methodology for assessing benefits.
Download or read book Highway Planning and Operations for the Dallas District written by John C. Brunk and published by . This book was released on 1997 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The System Planning Methodology was developed jointly by the Texas Department of Transportation (TxDOT), North Central Texas Council of Governments (NCTCOG), Dallas Area Rapid Transit (DART), and Texas Transportation Institute (TTI) as a transportation corridor and system analysis tool that would bridge the gap between regional planning and detailed corridor design. It allows for the examination of peak hour person movement for different facility types within a corridor and estimates associated public costs (e.g., right-of-way, construction, operation, congestion, and environmental costs). The objective of the methodology is to find the lowest total public cost alternative. This project extends the methodology to include costs associated with traffic incidents (nonrecurrent congestion) and tests the results on five corridors in the Dallas area to determine if it alters the recommended alternative previously identified for each corridor. It also adds toll lanes and high occupancy/toll lanes (HOT) as alternatives that can be evaluated against other combinations of general purpose lanes, high occupancy vehicle (HOV) lanes, and express lanes.
Download or read book Highway Planning and Operations for the Dallas District written by and published by . This book was released on 1997 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Limited capital investment for major transportation improvements and growth in metropolitan areas require the most efficient use of the existing transportation system. One means to achieve this is high-occupancy vehicle (HOV) lanes. While an extensive system of permanent HOV lanes is planned for the Dallas-Fort Worth urbanized area, the Texas Department of Transportation (TxDOT) and Dallas Area Rapid Transit (DART) have pursued and continue to pursue short-term or interim HOV lane projects that would enhance public transportation and overall mobility. There are currently 57 km (35.4 mi) of interim HOV lanes operationalin the Dallas area, including a barrier separated contraflow lane on I-30 (East R.L. Thornton Freeway) and buffer-separated concurrent flow HOV lanes on I-35E North (Stemmons Freeway) and I-635 (Lyndon B. Johnson Freeway). The objective of this research is to investigate the operational effectiveness of the new concurrent flow HOV lanes in the Dallas area, as well as to assess the effectiveness of concurrent flow (buffer-separated) versus contraflow (barrier-separated) HOV lanes. Issues such as person movement, carpool formation, travel time savings, violation rates, and project cost effectiveness are addressed. By understanding the operational performance and issues of both concurrent flow (buffer-separated) HOV lanes and contraflow (barrier-separated) HOV lanes, recommendations can be made on suggested HOV lane policies, including the type of permanent HOV lanes to be implemented in the Dallas area.
Download or read book Texas Transportation Researcher written by and published by . This book was released on 2000 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating Alternative Operations Strategies to Improve Travel Time Reliability written by National Academies of Sciences, Engineering, and Medicine (U.S.) and published by Transportation Research Board. This book was released on 2022-03-29 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, sets out requirements for travel time reliability within a performance-based planning process. The research includes an effort to determine the economic value of improvements in travel time reliability by applying options theory from the financial sector. The report includes two succinct tables that describe requirements for person and freight trips for reliable transport, as well as a forecast of the year 2030 under alternative assumptions that may influence travel time reliability.
Download or read book Dallas County Development and Outer Loop Highway Needs written by Marvin Springer and Associates and published by . This book was released on 1964* with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Planning for Optimal Roadway Operations in the Design Year written by and published by . This book was released on 1996 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study reexamines the traditional use of the 30th highest hourly volume as the optimum design hour volume given the current era of limited funding, constrained right-of-way, environmental concerns, and increasing congestion. The report documents the Dallas/Ft. Worth region's use of an alternative design hour volume (4th highest hour of the day) based on funding constraints. The use of an alternative design hour volume requires that the planned system be optimized to manage peak person trip flows by identifying the best mix of general purpose, high occupancy and express lanes, and an aggressive program of transportation system management and demand management strategies A methodology is outlined to use a peak hour traffic model to forecast traffic volumes for different hours of the day. This approach has the potential to avoid some of the shortcomings of using average values for peak hour factors, directional split, and trucks to obtain hourly design volumes from daily forecasts. If congestion is accepted during the peak hours of the day, then the design process for a facility must expressly consider congested conditions. Nine design elements that pose operational/safety concerns were examined under congested conditions to identify basic guidelines that should be considered when designing for congestion.
Download or read book Dallas Central Business District Street and Highway Plan written by Ponte-Travers Associates and published by . This book was released on 1969 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Action Plan written by Minnesota. Department of Highways and published by . This book was released on 1974 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recommended Street and Highway Projects for Dallas Central Area written by Central Business District Association (Dallas, Tex.) and published by . This book was released on 1967 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Traffic Data Collection for Transportation Planning in the Dallas Fort Worth Area written by Dennis G. Perkinson and published by . This book was released on 1995 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Texas Transportation Institute (TTI), under a contract with the Dallas District of the Texas Department of Transportation (TxDOT), provided traffic data for the North Central Texas Council of Governments (NCTGOV) for their transportation planning in the Dallas-Fort Worth area. This effort included volume counts, vehicle classification counts, and speed data for 23 urban corridors in the area. In addition, external station volume counts were collected for 32 external stations, and journey travel time data were collected for nine activity centers.
Download or read book Traffic Demand Analysis in Major Investment Studies written by John C. Brunk and published by . This book was released on 2000 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Federal regulations and guidance define major investment studies (MIS) as a flexible framework that can be tailored to provide the information needed to make local decisions about transportation investments. It is intended to enhance the planning process by requiring consideration of a broad array of alternatives and higher levels of public participation early in the process. The consideration of mobility and accessibility improvements, and operating efficiencies in the development and evaluation of alternatives is encouraged, but no particular approach or level of detail is required concerning traffic demand analysis. This project examines 13 completed MISs to identify the state-of-the-practice of traffic demand analysis employed in Texas and around the country. An examination of the methods identified was compiled in a range of analysis alternatives from planning-level down to microscopic analysis of freeway flow. Guidelines are included to help agencies conduct an MIS that adequately addresses traffic demand.
Download or read book Highway Noise Abatement Measures written by Beverly B. Storey and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of Dallas Area HOV Lanes Year 2001 written by Douglas A. Skowronek and published by . This book was released on 2002 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to investigate the operational effectiveness of the Dallas area HOV lanes. Issues such as person movement, carpool formation, travel time savings, violation rates, safety, and project cost effectiveness are addressed. By understanding the operational performance and issues of both concurrent flow (buffer-separated) HOV lanes and contraflow (barrier-separated) HOV lanes, recommendations can be made on suggested HOV lane policies, including the type of permanent HOV lanes to be implemented in the Dallas area.
Download or read book An Evaluation of Dallas Area HOV Lanes Year 2002 written by Douglas A. Skowronek and published by . This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to investigate the operational effectiveness of the Dallas area HOV lanes. Issues such as person movement, carpool formation, travel time savings, violation rates, safety, and project cost effectiveness are addressed. By understanding the operational performance and issues of both buffer-separated (concurrent flow) HOV lanes and barrier-separated (movable barrier contraflow or fixed barrier reversible flow) HOV lanes, recommendations can be made on suggested HOV lane implementation guidelines for the Dallas area.
Download or read book Crash Analysis of Selected High occupancy Vehicle Facilities in Texas written by A. Scott Cothron and published by . This book was released on 2004 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: The analysis of the IH-30 corridor with a moveable barrier-separated contraflow HOV lane did not indicate a change in injury crash occurrence. The IH-35E North and IH-635 corridors with buffer-separated, concurrent flow HOV lanes did show a change in crash occurrence with an increase in injury crash rates.
Download or read book Guidebook for Airport Irregular Operations IROPS Contingency Planning written by J. Michael Nash and published by Transportation Research Board. This book was released on 2012 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: ACRP Report 65: Guidebook for Airport Irregular Operations (IROPS) Contingency Planning is a practical guidebook for commercial passenger service airports of all sizes to develop, continually evaluate, and update their contingency plans for procedures pertaining to IROPS that may cause significant disruptions to customers. This guidebook assists aviation system partners in improving their response to customer care during a broad array of IROPS conditions and with step by step templates for the preparation of contingency plans that include necessary communications, collaboration, and coordination to address customer needs. A specific focus on the needs of smaller airports has been included in the development of the guidebook.
