The document discusses what we know about human behavior in disaster situations based on findings from several decades of research. That perspective can help in maximizing the effectiveness of traveler information communications. The current use of traveler information in managing normal incident
This report contains 27 case studies of systems in 22 states that improve roadway operations under inclement weather conditions. Each case study has six sections including a general description of the system, system components, operational procedures, resulting transportation outcomes, impl
MDSS provides clear, actionable information about weather and roadway conditions so DOTs can make confident and effective decisions on deployment, materials, and tactics when responding to weather events. The MDSS software integrates current and forecast atmospheric weather and pavement cond
The purpose of the weather TAT module is to provide Traffic Management Center (TMC) operators and traffic engineers with practical guidance for implementing proper traffic operational strategies specific to inclement weather conditions.
Traffic Analysis Toolbox Volume XI includes six ch
A variety of mitigation techniques can reduce the frequency and impact of localized bottlenecks (further defined in Section 2.0). These techniques can range from the most intense (e.g., microsimulation product applications) to the least intense (e.g., sketch planning) with several iterations of t
This document is the second volume in the FHWA Traffic Analysis Toolbox: Work Zone Analysis series. Whereas the first volume provides guidance to decision-makers at agencies and jurisdictions considering the role of analytical tools in work zone planning and management, this volume provides speci
The purpose of this study is to assess and provide an understanding on how well simulation and traffic analysis tools predict performance, and identify elements and issues which practitioners should be aware of to effectively apply these tools. Often, misapplication of a tool can change the resul
This report presents the results of an investigation into the appropriate definition, interpretation, and computation of measures of effectiveness (MOEs) for traffic operations and capacity improvement.
The goal of this study was to develop information and guidance on which MOEs should
This document is intended to provide guidance to decision-makers at agencies and jurisdictions considering the role of analytical tools in work zone planning and management. It is often unclear what kind of analytical approach may be of most value, particularly in light of complex data requiremen
The purpose of the Guidelines for Applying CORSIM Microsimulation Modeling Software is to provide more specific guidance for using CORridor SIMulation (CORSIM) traffic simulation software to conduct a transportation analysis using the process recommended by Volume III: Guidelines for Applying Tra
The purpose of the Guidelines for Applying CORSIM Microsimulation Modeling Software is to provide more specific guidance for using CORridor SIMulation (CORSIM) traffic simulation software to conduct a transportation analysis using the process recommended by Volume III: Guidelines for Applying Tra
"Traffic analysis tools" is a collective term used to describe a variety of software-based analytical procedures and methodologies that support different aspects of traffic and transportation analyses. Traffic analysis tools include methodologies such as sketch-planning, travel demand modeling, t
This report provides an overview of the role of traffic analysis tools in the transportation analysis process and provides a detailed decision support methodology for selecting the appropriate type of analysis tool for the job at hand.
An introduction to the role of traffic analysis too
The purpose of this document is to provide a general overview of the practice of traffic control activities associated with incident management and describe various conceptual traffic control elements. Various state laws and policies are in place for the purpose of addressing the safe, quick clea
This Handbook describes the desired characteristics of a Full-Function Service Patrol (FFSP) program from the viewpoint of an agency funding, managing, and operating the program. It provides an operational concept for FFSPs, describes key characteristics and presents concepts, information, and gu
The purpose of this Guide is to introduce ICS to stakeholders who may be called upon to provide specific expertise, assistance, or material during highway incidents but who may be largely unfamiliar with ICS organization and operations. These stakeholders include professionals at transportation a
This primer has been developed to assist agencies in establishing and monitoring a useful set of work zone safety and mobility performance measures. Work zone performance measures are metrics that help to quantify how work zones impact travelers, residents, businesses and workers. Work zone perfo
The AUSCI evaluation is divided into four separate test plans. Each test plan addresses a
specific project goal. The Evaluation Final Report provides results for each of the following evaluation test plans:
Test Plan One– Assess Performance Characteristics
<Transportation agencies throughout the country have implemented various successful and effective low cost strategies to improve safety and reduce traffic congestion.
This summary presents an overview of the results of the 2007 National Traffic Signal Report Card, the noteworthy findings and suggestions on how to use the results. This document is a continuation of work begun in 2005 and intends to focus attention on the operation and maintenance of traffic sig
Map 21 Full Report, GPO Version
Map 21 Conference Report to accompany H.R. 4348
of MAP-21 provisions.
Association of Metropolitan Planning Organizations MAP- 21 July 2012
MAP-21
Presentation
P.L. 112, -141-the Moving Ahead for Progress in the 21st Century Act
National Association of Regional Councils (NARC) – of each individual section of H.R. 4348
American Association of State Highway and Transportation Officials (AASHTO) Map 21 Breakdown
Highlights of MAP-21
AASHTO – Performance Management Provisions – Standing Committee on Performance Management
Texas Department of Transportation MAP-21 and Highlights
Southeast Michigan Council of Governments (SEMCOG) -2012 Federal Surface Transportation Legislation-MAP-21
Florida DOT Analysis of MAP-21 Conference Report on H.R. 4348
The purpose of the Michigan Signal Optimization Guidelines is to provide guidelines and recommendations for conducting signal optimization projec ts in the state of Michigan in a complete and consistent manner. This document is intended to guide the process, and not to be a restrictive document.
Technical document on Signalized Intersection Delay Models
The purpose of this report is to identify the steps that are required to time traffic signals, and to identify areas that will result in improved traffic signal timing. These steps define a continuing process that may be manual, semi-automated, or fully automated. In the abstract, the
The conventional approach to signal timing op timization and field deployment requires current traffic flow data, experience with optimization models, familiarity with the signal controller hardware, and knowledge of field operations including signal timing fine-tuning. Developing new signal timi
This is one of a series of documents providing support for deploying Intelligent Transportation Systems (ITS). This series addresses Traffic Signal Control Systems, Freeway and Incident Management Systems , Transit Management Systems, and Traveler Information Systems. The National ITS Architectur
Advance warning signals (AWS) provide information warning drivers in advance of the end-of-green interval for an approaching signali zed intersection. The purpose of this research was to develop guidelines for the placement of AWS in Utah, both c onditions to evaluate the need for AWS installatio
A driver approaching a signalized intersection where the light has turned yellow must make a decision whether to stop or proceed. A signal that is proper ly designed will provide an opportunity for a safe and legal maneuver. As approach speeds increase, how ever, it becomes more difficult to exec
Advance warning signals installed upstream of a high-speed signalized intersection (HSSI) warn motorists of impending signal changes in an effort to reduce the frequency of red-light running (RLR) and crashes. A new advance warning signal design was tested on an approach to a HSSI in Salt Lake Co
TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 97: Guide to Effective Freeway Performance Measurement: Final Report and Guidebook examines the effective use of freeway performance measures in operating a freeway system and in meeting the information nee
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2178 contains 19 papers that explore freeway incidents and secondary crashes; a heuristic ramp-metering coordination strategy; estimating freeway traffic density with loop detector and probe vehicle data; casc
TRB’s Transportation Research Record, Journal of the Transportation Research Board, No. 2229 includes 12 papers that explore reliability benefits of ramp metering; quantification of nonrecurrent congestion delay caused by freeway accidents and analysis of causal factors; spatiotemporal patterns o
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 399: Real-Time Traveler Information Systems explores the needs and expectations of travelers, the current status of a variety of traveler information systems in the United States, available and emerging data sources, and busine
TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that i
TRB’s National Cooperative Highway Research Program (NCHRP) Report 502: Geometric Design Consistency on High-Speed Rural Two-Lane Roadways presents rules on geometric design consistency suitable for use in an expert system such as the Interactive Highway Safety Design Model (IHSDM). The rules can
TRB's Transit Cooperative Research Program (TCRP) Research Results Digest 59: A Guide to Public Transportation Security Resources provides a listing of available (or soon-to-be-available) security resources, which can be obtained from public transportation systems, organizations, associations, in
TRB Special Report 270: Deterrence, Protection, and Preparation: The New Transportation Security Imperative examines the role of science and technology in countering terrorism. It presents advice on a strategic approach to transportation security that recognizes th
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2022 includes 11 papers that explore emergency resource allocation for critical transportation infrastructure protection, intelligent transportation system networks survivability, information shar
May 2015 newsletter
This webpage offers FHWA Exemplary Ecosystem Initiatives and criteria for selection.
TRB’s National Cooperative Highway Research Program (NCHRP) Report 750: Strategic Issues Facing Transportation, Volume 2: Climate Change, Extreme Weather Events, and the Highway System: Practitioner’s Guide and Research Report provides guidance on adaptation strategies to the likely impacts of cl
The latest national traffic signal assessment conducted by the National Transportation Operations Coalition (NTOC), a group of transportation associations, shows that gradual but steady progress is being made on the management and operation of traffic signals despite continued funding challe
The U.S. Department of Transportation and its member agencies have pursued a research and development agenda, the Intelligent Transportation System (ITS) Program, designed to integrate the latest in information technologies to improve the safety, mobility, and reliability of surface transpo
This Executive serves as a companion to the AASHTO Transportation Asset Management Guide—A Focus on Implementation. The AASHTO Transportation Asset Management Guide—A Focus on Implementation is focused on implementing transportation asset management (TAM). These documents s
Active management of transportation and demand can include multiple approaches spanning demand management, traffic management, parking management, and efficient utilization of other transportation modes and assets. This informational brief provides an introduction to the concept of active tr
Active Transportation and Demand Managment (ATDM) is the dynamic management, control, and influence of travel demand, traffic demand, and traffic flow of transportation facilities. Through the use of available tools and assets, traffic flow is managed and traveler behavior is influenced in realti
This analysis brief provides a summary of the Federal Highway Administration (FHWA) Office of Operations is sponsored research project to develop new and/or updated methodologies, data sets, and content for the Highway Capacity Manual (HCM) that will better reflect the demand and traffic flow beh
Active management of transportation and demand can include multiple approaches spanning demand management, traffic management, parking management, and efficient utilization of other transportation modes and assets.
This Informational Brief provides an overview of the origins and the evo
This Primer discusses advances covering a broad array of parking pricing applications, available technology, preferred user accommodations, and strategies for gaining public acceptance for policy changes. The information provided is meant to increase awareness of innovative approaches, help commu
This synthesis report describes both US and European techniques in Active Traffic Management (ATM). The primary focus of this synthesis is on European experience, which in some cases dates back a number of years. This report provides a compilation of lessons learned, experiences, operational resu
This report was developed to summarize the implementation of safety shoulders as travel lanes as a method to increase the efficient use of highway capacity. Its purpose is to provide a succinct overview of efforts to use left or right shoulder lanes as temporary or interim travel lanes. As part o
The purpose of this primer is to introduce and define the ATM and TDM concepts and show the need for and benefits of integrating the concepts into efforts to address congestion on the most affected facilities. The primer provides a conceptual framework, originally suggested by the Dutch Ministry
This document is one of a series of monographs that introduce systems engineering topics to transportation and transit engineers involved in Intelligent Transportation Systems (ITS) projects.This monograph focuses on the development of functional requirements for ITS projects and is intended for
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2022 includes 11 papers that explore emergency resource allocation for critical transportation infrastructure protection, intelligent transportation system networks survivability, information shar
TRB Special Report 270: Deterrence, Protection, and Preparation: The New Transportation Security Imperative examines the role of science and technology in countering terrorism. It presents advice on a strategic approach to transportation security that recognizes th
TRB’s National Cooperative Highway Research Program (NCHRP) Report 750: Strategic Issues Facing Transportation, Volume 2: Climate Change, Extreme Weather Events, and the Highway System: Practitioner’s Guide and Research Report provides guidance on adaptation strategies to the likely impacts of cl
TRB’s Conference Proceedings on the Web 14: Sustainable Energy and Transportation Strategies, Research, and Data includes summaries of plenary session presentations that were made during a November 2012 conference in Washington, D.C. The conference explored potential research needed to further ad
TRB's Transportation Research Circular E-C164: Climate Change and Transportation: of Key Information highlights the key findings of a variety of studies on the subject of climate change and its ramifications for the transportation sector conducted by the National Research Council, th
A featured article in the September-October 2013 issue of the TR News explores the origins and evolution of the innovative Eco-Logical: An Ecosystem Approach to Developing Infrastructure Projects. The article also highlights examples of early successes and current initiatives applying the collabo
TRB's Access Management Manual provides technical information on access management techniques, together with information on how access management programs can be effectively developed and administered. It presents access management -- the systematic control of the location, spacing, design, and o
The U.S. Federation Highway Administration has released a report that highlights operational strategies and performance management approaches that state and local transportation agencies have used to address congestion and reliability of transportation system in U.S. urban areas.
The U.S. Federal Highway Administration has released the latest issue of its Research and Technology (R&T) Now news update. The update reports on research, technology, and development activities taking place within the U.S. Department of Transportation.
The Guide provides the information for the FHWA to make informed decisions on requests for new or modified access to the Interstate System. It recognizes that interchange access requests should be evaluated as part of an integrated transportation system. The type of analysis necessary will vary o
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2089 includes 13 papers that explore approximations to the average length of vehicle routing problems, heuristic framework for optimizing hurricane evacuation operations, location routing approach for the huma
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2168 includes 16 papers that explore the discrete berth-scheduling problem; multimodal network analysis and vulnerability assessment; location choice model for logistic firms; agent-based combined traffic simu
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2410 consists of 17 papers that examine truck traffic related to petroleum well development and production in unconventional shale plays; a critical rural freight corridors designation; generation of reliable
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2378 consists of 14 papers that explore strategic rail freight network optimization; mode choice modeling for freight transport; ancillary functions for smartphone weight–mile tax truck data; inventory and veh
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2356 contains 14 papers that review an intelligent dilemma-zone protection system for a high-speed rural intersection; adaptive signal control in Germany; queue length under connected vehicle technology; a coo
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2192 contains 18 papers that explore simulation-based optimization of the maximum green setting, wireless magnetometer vehicle detectors at signalized intersections, management of signalized arterial capacity,
TRB’s Transit Cooperative Research Program (TCRP) Synthesis 13: Risk Management for Small and Medium Transit Agencies provides information on how small and medium-sized transit agencies can evaluate various approaches to risk management and can access risk management services at reasonable cost.&
TRB’s Transit Cooperative Research Program (TCRP) Research Results Digest 12: Transit Risk Manager: Risk Management Software for Bus Transit Systems describes a new software product developed under TCRP Project G-3, "Tools for Transit Risk-Exposure Identification and Treatment for Bus Transit Sys
TRB’s National Cooperative Highway Research Program (NCHRP) Report 706: Uses of Risk Management and Data Management to Support Target-Setting for Performance-Based Resource Allocation by Transportation Agencies describes how transportation agencies can use risk management and data management to s
TRB’s second Strategic Highway Research Program (SHRP 2) S2-R09-RW-2: Guide for the Process of Managing Risk on Rapid Renewal Projects describes a formal and structured risk management approach specifically for rapid renewal design and construction projects that is designed to help adequatel
TRB’s second Strategic Highway Research Program (SHRP 2) S2-C06-RW-4: Manager’s Guide to the Integrated Ecological Framework is designed to provide a basic understanding of the Integrated Ecological Framework (IEF), a nine-step process for integrating ecological and transportation planning.
TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-C06-RW-3: Practitioner’s Guide to the Integrated Ecological Framework explores ways to apply ecological principles early in the planning and programming process of highway capacity improvements to inform environmental re
TRB’s second Strategic Highway Research Program (SHRP 2) S2-C06-RW-1: An Ecological Approach to Integrating Conservation and Highway Planning, Volume 1 summarizes the research approach and major findings of a project designed to help transportation and environmental professionals apply ecological
TRB’s second Strategic Highway Research Program 2 (SHRP 2) Report S2-C06-RW-2: An Ecological Approach to Integrating Conservation and Highway Planning, Volume 2 is designed to help transportation and environmental professionals apply ecological principles early in the planning and programming pro
the Integrated Ecological Framework (IEF) was developed as a technical guide to provide a step-by-step process for implementing the Eco-Logical approach (see Figure ES.1). It is the key product of the SHRP 2 C06 project, Integrating Ecological Mitigation to Enhance Efficiency. This C06 IEF Outrea
TRB's National Cooperative Highway Research Program (NCHRP) Legal Research Digest 47: Judicial Enforcement of Variable Speed Limits examines judicial decisions and judicial enforcement on variable speed limit programs.
Continued growth in travel on congested urban freeway corridors exceeds the ability of agencies to provide sufficient solutions and alternatives based on traditional roadway expansion and improvement projects. Several countries are implementing managed motorway concepts to improve motorway capaci
TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2280 consists of 20 papers that explore setting variable speed limits; hard highway shoulder running; computer vision-based safety evaluations; safety intervention models; safety effectiveness of Super 2 highw
This report summarizes the proceedings of the Asset Management Peer Exchange hosted by the Federal Highway Administration (FHWA) and the American Association of State Highway and Transportation Officials (AASHTO). The peer exchange was held in San Diego, CA on April 19, 2012.
The peer
