Publications Search Results

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 Transportation Research Record: Journal of the Transportation Research Board, No. 2344 contains 16 papers that explore the effectiveness of Bayesian updating attributes in data transferability applications; social adoption in design and analysis of stated-choice experiments related to choic

TRB’s Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2429 consists of 19 papers that examine methods for quantitative risk analysis for travel demand model forecasts; models of demand elasticity and route overlapping; ways of incorporating the variable of

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2430 consists of 23 papers that examine modeling demand for bikesharing systems; origin-destination centrality to estimate directional bicycle volumes; imputation of GPS traces forcing full or partial consiste

A feature article in the September-October 2009 issue of the TR News explores differences in the travel behavior of minority populations that could have wide-reaching implications for short- and long-term policy development, planning, and travel demand forecasting.   

TRB’s National Cooperative Highway Research Program (NCHRP) Report 526: Snow and Ice Control: Guidelines for Materials and Methods provides guidance for selecting roadway snow and ice control strategies, and tactics for a wide range of winter maintenance operating conditions. This guidance applie

The Report to Congress summarizes the key results for the Value Pricing Pilot Program (VPPP) since 1991. Projects and studies conducted as part of the VPPP have provided many valuable lessons, but six key findings demonstrate the significant progress made in the past few years toward successful d

TRB’s Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2435 consists of nine papers that examine the use of the Monte Carlo simulation for a sensitivity analysis of highway safety manual calibration factors; a variable speed limit control strategy; safety ef

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2364 consists of 10 papers that explore variable speed limit control strategies; opinions on safety policy; rural roadway departure crashes; traffic calming measures in New York City; safety management tools;

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2423 consists of nine papers that summarize the opportunities for intelligent transportation systems in the energy arena; effects of tactile location, pulse duration, and interpulse intervals on perceived urge

This report summarizes the proceedings of the 2014 Transportation 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 Miami, Florida on May 1st, 2014.

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2423 consists of nine papers that summarize the opportunities for intelligent transportation systems in the energy arena; effects of tactile location, pulse duration, and interpulse intervals on perceived urge

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 2013 Transportation 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 Burlington, Vermont on July 24th

This report summarizes the proceedings of the Asset Management and Management of Highway Performance Peer Exchange hosted by the Federal Highway Administration and the American Association of State Highway and Transportation Officials. The peer exchange was held in Washington, D.C. on August 17,

This Informational Brief highlights ramp metering as a proven, effective strategy for reducing congestion and improving safety. The Brief covers at a high-level the benefits of ramp metering, status of ramp metering deployment in the U.S., keys for successful deployment and operation, and resourc

This primer poses ramp metering as a potential tool to address commonly occurring congestion and safety issues. Despite initial opposition and skepticism from various stakeholders, ramp metering has been deployed, sustained, and even expanded in many regions. This primer incorporates recent resea

OR 217, a 7.5-­‐mile limited-­‐access expressway in Portland, Oregon was the subject of several studies that recommended capacity and interchange improvements costing nearly $1 billion. Because of limited funding, the Oregon Department of Transportation (ODOT) and the DKS Associates Team evaluate

The management of highway traffic incidents that occur on Oregon state highways requires the response of multiple state and local government organizations. Emergency incidents can range from a vehicle crash to a landslide that has closed a highway. Interagency communication is needed to insure th

The guide is intended to provide transit agency staff with an easy-to-use resource for improving pedestrian safety. The guide includes a variety of approaches to address common pedestrian safety issues that are likely to arise near transit stations, bus stops, and other places where transit (bus

TRB’s Transit Cooperative Research Program (TCRP) Synthesis 59: Strategic Planning and Management in Transit Agencies examines the value and benefits of strategic planning and management in transit agencies.  The report also provides case studies from five transit a

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.&

This white paper describes example best practices and reference material related to the identified implementation plan priority needs. The paper also suggests supportive national actions to improve TSM&O Business Processes – development of a program of webinars, guidelines, and lessons-l

This white paper describes example best practices and reference material regarding the implementation plan priority needs noted above. The paper also suggests supportive national actions to improve Systems and Technology including: compiling examples of best practices for the use of Statewide and

This white paper describes example best practices and reference material regarding the implementation plan priority needs noted above. The paper also suggests supportive national actions to improve TSM&O Performance Measurement including: developing standard definitions and procedures for pla

This white paper describes example best practices and reference material related to the identified implementation plan priority needs. The paper also suggests supportive national actions to improve TSM&O Culture; developing resources to support effective TSM&O business cases; clarifying t

This white paper describes example best practices and references material related to the identified implementation plan priority needs. The paper also suggests supportive national actions to improve TSM&O Organization and Staffing – development of a TSM&O organization and staffing ga

This white paper describes example best practices and reference material related to the identified implementation plan priority needs. The paper also suggests supportive national actions to improve TMCs Collaboration – development of a program of webinars, guidelines, and lessons-learned to

This paper is a deliverable on a technical support task for the FHWA Office of Operations. The objective of the task is to develop white papers on emerging and current topics of interest to the Office. Topics for white papers were primarily identified and prioritized based on internal listening s

TRB’s Transit Cooperative Research Program (TCRP) Synthesis 115: Open Data: Challenges and Opportunities for Transit Agencies documents the current state of the practice in the use, policies, and impact of open data for improving transit planning, service quality, and treatment of customer inform

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2006 includes 13 papers that explore intermodal transfer facilities and transit capacity and quality of service, modernizing streetcar systems and trolley service, ridership on the Los Angeles Metro System Gre

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 1978 contains 24 papers that explore different aspects of traffic signal systems and regional systems management.  Specific topics addressed by papers in this issue of the TRR: Journal include detecting b

June 2015 NOCoE Newsletter

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2065 includes 8 papers that explores a new active traffic management approach for metropolitan freeways; an innovative approach to statewide sketch planning for traffic operations in Wisconsin; in

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 Transit Cooperative Research Program (TCRP) Report 160: Paratransit Emergency Preparedness and Operations Handbook includes guidance, strategies, tools, and resources to help paratransit service providers plan and prepare for, respond to, and recover from a range of emergencies. The guidanc

Natural disasters like Hurricane Katrina test the robustness and resiliency of the transportation system and emphasize the need for information to constantly improve the nation’s ability to prepare for, prevent, respond to, and recover from natural disasters, security events, and other emergencie

TRB’s National Cooperative Highway Research Program (NCHRP) Report 525: Surface Transportation Security, Volume 6: Guide for Emergency Transportation Operations supports development of a formal program for the improved management of traffic incidents, natural disasters,

TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 73: Emergency Transportation Operations: Resources Guide for NCHRP Report 525, Volume 6 is a resources guide on emergency transportation operations (ETO) containing bibliographical material tha

TRB’s National Cooperative Highway Research Program (NCHRP) Report 525: Surface Transportation Security and TRB’s Transit Cooperative Research Program (TCRP) Report 86: Public Transportation Security series publications have jointly published Guidelines for Transportation Emergency Training Exerc

Weather Information for Road Managers

Article that explains various types of weather information that assists road managers.

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, implementa

The guide is intended to provide transit agency staff with an easy-to-use resource for improving pedestrian safety. The guide includes a variety of approaches to address common pedestrian safety issues that are likely to arise near transit stations, bus stops, and other places where transit (bus

On April 28, 2015, the Committee for the Review of the U.S. Department of Transportation (USDOT) Report on Connected Vehicle Initiative Communications Systems Deployment sent a letter to Anthony R. Foxx, Secretary of the USDOT. The committee, as directed by Congress, conducted an independent peer

With funding and support from the USDOT RITA and direction from the FHWA Road Weather Management Program, NCAR is developing a Vehicle Data Translator (VDT) software system that incorporates vehicle-based measurements of the road and surrounding atmosphere with other weather data sources. The p

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2424 consists of eight papers that address a new snapshot generation protocol for travel-time estimation in a connected vehicle environment, the safety impacts of intervehicle warning information systems for m

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2424 consists of eight papers that address a new snapshot generation protocol for travel-time estimation in a connected vehicle environment, the safety impacts of intervehicle warning information systems for m

The purpose of this document is to provide a summary of the data collection efforts for the ITS Mobile Observations (IMO) study, the results of the analysis of the quality of those observations, and results of the incorporation of the observations into road weather and/or road maintenance specifi

Weather has a significant impact on the operations of the nation’s roadway system year round. These weather events translate into changes in traffic conditions, roadway safety, travel reliability, operational effectiveness, and productivity. It is, therefore, an important responsibility of traffi

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TRB’s National Cooperative Highway Research Program (NCHRP) Report 781: A Debris Management Handbook for State and Local DOTs and Departments of Public Works provides debris management practices for local, tribal, and state departments of transportation and for public works agencies. A PowerPoint

TRB’s Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2442 consists of 15 papers that examine a time–space diagram; using third-party data for travel demand modeling; calibration of a rail transit assignment model with automated fare collection data and a p

TRB’s Transit Cooperative Research Program (TCRP) Report 117: Design, Operation, and Safety of At-Grade Crossings of Exclusive Busways explores planning, designing, and operating various kinds of busways through roadway intersections. The report examines at-grade intersections along busways withi

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2384 consists of 13 papers that explore the effectiveness of “vehicle entering when flashing” signs; countdown-only pedestrian change interval displays; driver perception and reaction time; dilemma zone identi

In 2010 and 2011, safety staff with FHWA and the Michigan Department of Transportation (MDOT) analyzed 110 wrong-way crashes that occurred on the Michigan freeway system during the 5-year period from 2005 to 2009. What they found regarding the characteristics of wrong-way drivers corroborated ear

Driving the wrong way on freeways has been a nagging traffic safety problem since the interstate highway system was founded in the late 1950s. Despite four decades of highway striping and sign improvements at freeway interchanges, the problem persists.

Studies, such as those performed b

TRB’s National Cooperative Highway Research Program (NCHRP) Report 551: Performance Measures and Targets for Transportation Asset Management describes the research effort associated with production of the report and provides the current state of practice on the use of performance measures, princi

This memo presents a synthesis of existing practice, based on collection of structured information from state and local agencies with signal system management responsibilities. One hundred twenty agencies were contacted and asked to fill out a data collection instrument placed on the web. The ins

The purpose of this report is to define the elements of a comprehensive signal system asset management system (SSAMS). It builds on the results of a state-of-the-practice review of signal systems asset management, and lays the groundwork for investigating how a SSAMS could be used to evaluate alt

In order to identify the key characteristics of signal systems that should be taken into account in the development of a SSAMS, the state-of-the-practice in signal system asset management was evaluated through a literature review, agency survey, and follow-up in-depth interviews. The detailed fin

Separated bike lanes cannot be planned in a vacuum. Among the primary concerns when planning a separated facility is determining how much, if any, motor vehicle capacity might be removed due to an installation. The reduction could result from removing a lane of vehicular traffic or altering signa

TIM Training Detailed Agenda

Signed Ops Implementation Plan

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2278 consists of 20 papers that explore freeway ramp controls, travel time reliability and nonrecurrent congestion, the diverge bottleneck, lane changes, automatic detection of freeway incidents, queue estimat

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2355 contains 10 papers that study cycle length; optimizing traffic signal timing; assessing agency-wide signal management objectives; estimating queue lengths at signalized intersections; and dynamic lane ass

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2355 contains 10 papers that study cycle length; optimizing traffic signal timing; assessing agency-wide signal management objectives; estimating queue lengths at signalized intersections; and dynamic lane ass

This document contains a Road Safety Audit (RSA) prompt list intended to focus specific attention on Wrong Way Driving (WWD) issues and contributing factors. The prompt list has been developed in a similar framework to the broader RSA prompt lists contained in Chapter 8 of the FHWA RSA Guidelines

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2190 contains 6 papers that explore the influence of the built environment on route selection for bicycle and car travel; automated bicycle counts; multimodal travel choices of bicyclists; effects of gender on

Lesson

Accommodating Bicycle and Pedestrian Travel: A Recommended Approach is a policy statement adopted by the United States Department of Transportation. USDOT hopes that public agencies, professional associations, advocacy groups, and others adopt this approach as a way of committing themselves to in

This report summarizes traffic management systems maintenance practices utilized by state and local transportation agencies, identifies lessons learned from those practices, and offers professional analysis and recommendations for development of a comprehensive traffic management system maintenan

This regulation provides policies and procedures for implementing section 5206(e) of the Transportation Equity Act for the 21st Century (TEA-21), Public Law 105-178, 112 Stat. 457, pertaining to conformance with the National Intelligent Transportation Systems Architecture and Standards.

This guide is intended to introduce you to systems engineering and provide a basic understanding of how it can be applied to planning, designing, and implementing intelligent transportation systems (ITS) projects. The guide leads you step by step through the project life cycle and describes the

The regional ITS architecture was developed in the previous four sections. Now that you have a regional ITS architecture, this section describes ways that the architecture can be used.

In earlier sections, as the regional ITS architecture was developed, the transportation planning proce

This section describes TIM AMS methods and related applications. In each of the following subsections the current state of the practice is documented. The state of the practice (what is in current use) is discussed separately from the state of the art (that what has been researched).

The fifth edition of the Highway Capacity Manual (HCM2010), which updates HCM2000, will significantly enhance how engineers and planners assess the traffic and environmental effects of highway projects. 

The HCM2010: • provides an integrated multimodal approach to the analysis and

Work zone planning and management have become more challenging because of increasing travel demand and an aging roadway network infrastructure facing more frequent maintenance and major rehabilitation projects, while still needing to transport people and goods safely. In order to meet safety and

TRB’s second Strategic Highway Research Program (SHRP 2) S2-R11-RW-2: WISE Software Users Guide explains how to use the work zone impact and strategy estimator (WISE)—a decision support software system designed to help evaluate the impact of work zones and determine strategies to reduce

The TRB Committee for Review of the U. S. Department of Transportation's (DOT) Intelligent Transportation Systems (ITS) Standards Program has issued its fourth letter report to the ITS Joint Program Office. The report concludes that facilitating ITS data harmonization warrants JPO support.

TRB Special Report 280: Development and Deployment of Standards for Intelligent Transportation Systems (ITS): Review of the Federal Program presents recommendations for future management of the Federal Highway Administration’s ITS Standards Program.

A summary of Special Report 280 as pu

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2385 consists of 8 that explore plug-in hybrid electric vehicles; biodiesel from lagoon microalgae; sustainable biofuel supply chain planning and management; location of electric vehicle charging stations; nei

Transport Topics Publishing Groups has released a special report discussing alternative fuels for trucking, logistics, and freight industries. This report discusses the use of alternative fuels such as liquefied natural gas, compressed natural gas, biodiesel, methane, ethanol, and dimethyl ether

TRB’s Transportation Research Record (TRR): Journal of the Transportation Research Board, No. 2454 Energy, Climate Change, and Alternative Fuels 2014 consists of 13 papers that explore modeling regional transportation demand in China and the impacts of a national carbon policy; the effects of the

TRB’s Airport Cooperative Research Program (ACRP) Report 83: Assessing Opportunities for Alternative Fuel Distribution Programs consists of a guidebook and toolkit designed to help airports introduce and market alternative fuels to their airport community that includes tenants and consumers off a

TRB Transportation Research E-Circular E-C 150: Advancing Regional Transportation Operations: A National Workshop is a summary of the December 2008 workshop held in Washington, D.C. The purpose of the workshop was to advance the state of the practice in regional approaches to managing and oper

TRB’s Transportation Research Circular E-C133: Glossary of Regional Transportation Systems Management and Operations Terms is designed to provide clear definitions of terms as they are typically used in the context of regional transportation systems management and operations.   

TRB’s Transit Cooperative Research Program (TCRP) Report 140: A Guide for Planning and Operating Flexible Public Transportation Services explores the types of flexible transportation service strategies that are potentially appropriate for small, medium, and large urban and rural transit agencies.

Numerous traffic analysis tools have been developed by public agencies, research organizations, and private vendors/consultants. Traffic analysis tools can be grouped into the following categories shown on site page.

A critical element in improving transportation decision-making and the effectiveness of transportation systems related to operations and planning is through the use of analysis tools. The use of the term “Tools” in this context is meant not only to include physical software and devoted analytical

This primer provides an overview of traffic analysis tools in the transportation analysis process. Different categories of traffic analysis tools are defined, and the challenges and limitations of using traffic analysis tools is presented. A specific comparison between Highway Capacity Manual (HC