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TRB Publications about Public Transportation
ACRP Web-Only Document 54
September 16, 2022
An important operational characteristic of an airport is the length of its longest runway. The longest runway determines the types of aircraft that can use the airport and dictates the operational limitations at the airport. The TRB Airport Cooperative Research Program's ACRP Web-Only Document 54: Development of a Small Aircraft Runway Length Analysis Tool provides a user-friendly computer tool to...
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NCHRP Web-Only Document 340
September 02, 2022
Dynamic curbside management has been the purview of cities, with much of the relevant research and guidance directed toward local transportation agencies. However, state departments of transportation, metropolitan planning organizations, and other regional agencies can be important partners for these local entities because, in many cases, roadways and other curb zone elements are part of the regio...
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March 31, 2022
The November-December 2021 issue of TR News —with a cover feature on collaboration and innovation at the MnROAD Research Facility—is available in full online. Other feature articles in the issue include Airport Cooperative Research Program guidance on best design practices for service animal relief areas, worship spaces, lactation areas, and more; developing the transportation workforce; and infra...
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NCHRP Web-Only Document 308
March 14, 2022
Many technical and institutional issues related to estimating and reducing greenhouse gas emissions (GHGs) lie across a wide spectrum of the activities undertaken by state departments of transportation (DOTs). The TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 308: Methods for State DOTs to Reduce Greenhouse Gas Emissions from the Transportation Sector documents the re...
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NCHRP Research Report 986
March 08, 2022
The AASHTO Guide for Enterprise Risk Management , published in 2016, defines enterprise risk management as “the formal and systematic effort to control uncertainty and variability on an organization’s strategic objectives by managing risks at all levels of the organization.” The TRB National Cooperative Highway Research Program's NCHRP Research Report 986: Implementation of the AASHTO Guide for En...
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TCRP Web-Only Document 74
February 10, 2022
The TRB Transit Cooperative Research Program's TCRP Web-Only Document 74: Recent Decline in Public Transportation Ridership: Hypotheses, Methodologies, and Detailed City-by-City Results provides supplemental information to TCRP Research Report 231: Recent Decline in Public Transportation Ridership: Analysis, Causes, and Responses , which delves into exploring ridership losses already being experie...
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January 28, 2022
The September-October 2021 issue of TR News —with a cover feature on what the transportation industry learned from 9/11—is available in full online. Other feature articles in the issue focus on how, since the terrorist attacks of September 11, 2001 (9/11), transportation has broadened its role to include response and operations—from traffic incident management as a multiagency function to av...
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January 03, 2022
The 2021 Annual Report for the Behavioral Traffic Safety Cooperative Research Program (BTSCRP) is now available. BTSCRP provides practical, ready-to-implement solutions to save lives, prevent injuries, and reduce costs of road traffic crashes associated with unsafe behaviors. The BTSCRP Annual Report highlights current and pending projects, sponsors, and other details about the program.
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January 03, 2022
The 2021 Annual Report summarizes TRB’s accomplishments in each of its major program areas and how TRB has served the nation and the global transportation professional community throughout the year. TRB provides leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transporta...
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December 29, 2021
The TRB Transit Cooperative Research Program (TCRP) has released its annual report, which provides an overview of the program, status of each of TCRP’s projects, and a summary of some of the program's accomplishments for the year. In FY 2021, TCRP produced 21 publications, including 12 research reports, 5 syntheses, 2 legal research digests, 1 research results digest, and a web-only document, brin...
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December 10, 2021
The TRB IDEA (Innovations Deserving Exploratory Analysis) Program's IDEA Program Announcement 2022 describes the IDEA programs and how they are administered, provides instructions and documents for submitting proposals for funding, and lists general research topics derived from program goals.
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December 10, 2021
TRB’s Innovations Deserving Exploratory Analysis (IDEA) program has issued its New IDEAS for Transit: Transit IDEA Program Annual Report , which summarizes recent investigations conducted under the Transit IDEA program. The Transit IDEA Program is designed to foster innovative concepts that have the potential to enhance security, increase ridership, improve efficiency for transit agencies, and pro...
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November 15, 2021
The July-August 2021 issue of TR News —with a cover feature on research needs for the marine transportation system of the future—is available in full online. Other feature articles in the issue include members of the Marine Board and TRB’s Marine Group standing committees investigating critically important topics for innovation and research in, and transformation of, the marine transportatio...
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August 11, 2021
The March - April 2021 issue of TR News —with a cover feature on TRB's 100th Annual Meeting—is available in full online. Other articles in the issue explore mobility and human trafficking, near-road air quality, and how to make safer roadway crossings for small wildlife. This is Issue 332. To subscribe to TR News, sign up through MyTRB.org. Subscription rates include postage. Subscribe based...
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TRB Special Report 340
August 05, 2021
Significant progress has been made over the last decade in integrating resilience criteria into transportation decision-making. A compelling case remains for investing in making transportation projects more resilient in the face of increasing and intensifying storms, floods, droughts, and other natural hazards that are combining with sea-level rise, new temperature and precipitation norms, and oth...
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July 21, 2021
The May - June 2021 issue of TR News —with a cover feature on diversity, equity, and inclusion (DE&I) in the transportation profession—is available in full online. Other articles in the issue highlight TRB’s initiatives addressing DE&I, along with programs within the larger transportation community, from the federal government to states to universities. This is Issue 333. To subscribe to T...
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Racial Equity Addendum to Critical Issues in Transportation
July 15, 2021
Racism has been overt in transportation. For example, the segregation of races on intercity trains led to the infamous 1896 Plessy v. Ferguson “separate but equal” Supreme Court doctrine that stood for more than half a century. While many discriminatory policies have been reversed by the courts and in constitutional amendments, their impacts on society have not been fully remedied and persist. TRB...
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TRB Special Report 339
June 17, 2021
Liquefied natural gas (LNG) has not been transported to any significant degree by freight railroads in the United States. When the Further Consolidated Appropriations Act of 2020 was enacted, it directed the Pipeline and Hazardous Materials Safety Administration (PHMSA) to enter into an agreement with the National Academies of Sciences, Engineering, and Medicine (NASEM) to convene a committee of i...
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TCRP Research Report 224
May 21, 2021
Joint development is real estate development that occurs on transit agency property or through some other type of development transaction to which the transit agency is a party. The TRB Transit Cooperative Research Program's TCRP Research Report 224: Guide to Joint Development for Public Transportation Agencies is designed to expand the successful use of joint development in North American transit...
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TCRP Research Report 226
May 20, 2021
Transportation is a major source of the greenhouse gas (GHG) emissions that are causing climate change. As communities work to cut emissions and become more resilient, they are including public transportation advances as a significant part of their climate action strategies. The TRB Transit Cooperative Research Board's TCRP Research Report 226: An Update on Public Transportation's Impacts on...
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TCRP Synthesis 152
May 13, 2021
In the United States, many transit stops are not adequate: bus stops that are just a signpost on a busy road, bus stops with broken sidewalks and/or pathway obstructions, bus stops with a lack of seating, and bus stops clearly not accessible to people with disabilities. For many bus riders, the journey to access and the wait at the bus stop are experiences that may inhibit their ability or desire ...
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Transportation Research Circular E-C270
May 05, 2021
There is a widespread and heightened interest in both taking a hard look at where inequity exists and how to identify ways to address it with actionable solutions. The TRB National Cooperative Highway Research Program's Transportation Research Circular E-C270: Opportunities for Research on Transportation and Equity presents the outcomes of a TRB brainstorming session put forth as a challenge from ...
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NCHRP Research Report 963/TCRP Research Report 225
April 12, 2021
Understanding pandemics, their impacts to transportation, and potential effective response has become more important, not only for the response to COVID-19, but also if, as the World Health Organization warns, we are now “living in a time of viruses.” TRB's National Cooperative Highway Research Program and Transit Cooperative Research Program have jointly issued NCHRP Research Report 963/TCR...
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NCHRP Research Report 963/TCRP Research Report 225
April 12, 2021
Understanding pandemics, their impacts to transportation, and potential effective response has become more important, not only for the response to COVID-19, but also if, as the World Health Organization warns, we are now “living in a time of viruses.” TRB's National Cooperative Highway Research Program and Transit Cooperative Research Program have jointly issued NCHRP Research Report 963/TCR...
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April 12, 2021
Safety technologies and programs aimed at reducing or eliminating risky driving behaviors may prevent a large number of crashes. The TRB IDEA (Innovations Deserving Exploratory Analysis) Program's Transit IDEA Final Report 88: Evaluation of an Automatic, Individual Computer-Based Driver Education and Training Program analyzes a software program that uses onboard safety monitoring data to monitor d...
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April 08, 2021
The September–October 2020 issue of TRB's magazine is now available in full online. Issue 330 includes the cover story, “Recycled Material Web Map,” and features articles on topics including incorporating resiliency into freight mobility, living with transformational technologies, and pollution-reducing highway barriers. TR News is TRB's bimonthly magazine featuring timely articles on innovative a...
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TCRP Synthesis 153
April 01, 2021
Today, transit agencies gather and manage more data than ever. However, data processing, exploration, the development of performance metrics, and communicating decisions are often fragmented and scattered across many departments. The TRB Transit Cooperative Research Program's TCRP Synthesis 153: The Transit Analyst Toolbox: Analysis and Approaches for Reporting, Communicating, and Examining Transi...
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February 12, 2021
Issue 328 of TRB's magazine, TR News , is dedicated to water and the role of transportation agencies in the stewardship of this vital resource, particularly as the way humans use water is changing dramatically. Authors explore the evolution of stormwater regulation; how departments of transportation manage water in planning, design, construction, and operations; and more. TR News is TRB's bi...
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TCRP Research Report 219
February 11, 2021
The zero‐emission bus (ZEB) market, including Battery Electric Buses and Fuel Cell Electric Buses, has seen significant growth in recent years. ZEBs do not rely on fossil fuels for operation and have zero harmful tailpipe emissions, improving local air quality. The increase in market interest has also helped decrease product pricing. The TRB Transit Cooperative Research Program's TCRP Resear...
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February 10, 2021
Issue 327 of TRB's magazine is a special edition illuminating the many hidden aspects of tunnels as well as the benefits of tunnel technology to modern transportation systems. Articles highlight the contribution of tunnels to the economy and how transportation operators use the best technology to keep tunnels efficient and safe. TR News is TRB's bimonthly magazine featuring timely articles o...
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