Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies


Book Description

"Reliability of transport, especially the ability to reach a destination within a certain amount of time, is a regular concern of travelers and shippers. The definition of reliability used in this research is how travel time varies over time. The variability can apply to the travel times observed over a road segment during a specific time slice (e.g., 3 to 6 p.m.) over a fairly long period of time, say a year. The variability can also pertain to the travel times of repeated trips made by a person or a truck between a given origin and destination. Agencies are increasingly aware of the issue of reliability, although the transportation industry as a whole as yet lacks a firm understanding of the causes and solutions to failures of reliability. As the agenda for the SHRP 2 research on travel time reliability took shape, it became clear a fundamental study was required to be able to talk about travel time reliability in a meaningful way"--Foreword.




Evaluating Alternative Operations Strategies to Improve Travel Time Reliability


Book Description

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.




Guide to Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes


Book Description

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, is designed to help planning, programming, and operations managers apply the concept of travel time reliability to balance investment in programs and projects.




Incorporating Reliability Performance Measures into the Transportation Planning and Programming Processes: Technical Reference


Book Description

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, provides a “how-to” guide for technical staff to select and calculate the appropriate performance measures to support the development of key planning products, including long-range transportation plans, transportation programs, congestion management process, corridor planning, and operations planning.




Identification and Evaluation of the Cost-Effectiveness of Highway Design Features to Reduce Nonrecurrent Congestion


Book Description

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, focuses on geometric design treatments that can be used to reduce delays due to nonrecurrent congestion.




Incorporating Reliability Performance Measures into Operations and Planning Modeling Tools


Book Description

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, explores the underlying conceptual foundations of travel modeling and traffic simulation, and provides practical means of generating realistic reliability performance measures using network simulation models.




Transportation Planning Handbook


Book Description

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.




Design Guide for Addressing Nonrecurrent Congestion


Book Description

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, catalogs highway design treatments that can be used to reduce nonrecurrent congestion and improve the reliability of urban and rural freeways.




Validation of Urban Freeway Models


Book Description

TRB's second Strategic Highway Research Program (SHRP 2) Report S2-L33-RW-1: Validation of Urban Freeway Models documents and presents the results of a project to investigate, validate, and enhance the travel time reliability models developed in the SHRP 2 L03 project titled Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies. This report explores the use of new datasets and statistical performance measures to validate these models. As part of this validation, this work examined the structure, inputs, and outputs of all of the L33 project models and explored the applicability and validity of all L03 project models. This report proposes new application guidelines and enhancements to the L03 models.




Road Traffic Congestion: A Concise Guide


Book Description

This book on road traffic congestion in cities and suburbs describes congestion problems and shows how they can be relieved. The first part (Chapters 1 - 3) shows how congestion reflects transportation technologies and settlement patterns. The second part (Chapters 4 - 13) describes the causes, characteristics, and consequences of congestion. The third part (Chapters 14 - 23) presents various relief strategies - including supply adaptation and demand mitigation - for nonrecurring and recurring congestion. The last part (Chapter 24) gives general guidelines for congestion relief and provides a general outlook for the future. The book will be useful for a wide audience - including students, practitioners and researchers in a variety of professional endeavors: traffic engineers, transportation planners, public transport specialists, city planners, public administrators, and private enterprises that depend on transportation for their activities.