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TRB Publications about Motor Carriers
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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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 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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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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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 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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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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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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Transportation Research Circular E-C268
January 11, 2021
In comparison to the levels of public interest and attention, there is little research to help understand the major obstacles and constraints encountered by women travelers and women working in transportation industries. TRB's Transportation Research Circular E-C268: Insights, Inclusion, and Impact: Framing the Future for Women in Transportation details the 2019 Women’s Issues in Transportation Co...
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January 07, 2021
The September–October 2020 issue of TRB's magazine is now available in full online. Themed “Embracing the Future,” the issue celebrates TRB’s centennial with articles forecasting the future of transportation. Authors present outlooks that are multimodal, creative, diverse, inclusive, and thought-provoking, offering a pause point for transportation researchers, policy makers, and practitioners as t...
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January 06, 2021
The year 2020’s raging coronavirus pandemic and reckoning with long-standing racial injustice led to widespread disruption and suffering, social unrest, and renewed calls for an accounting of our fragmented public health system and troubled history of racial inequity. The crises of 2020 transcend transportation yet also raise fundamental questions for it along with other sectors of our society and...
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January 06, 2021
The 2020 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 2020. TRB provides leadership in transportation improvements and innovation through trusted, timely, impartial, and evidence-based information exchange, research, and advice regarding all modes of transportation...
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Transportation Research Circular E-C267
November 05, 2020
Coronavirus (COVID-19) has proven a formidable adversary worldwide, with tremendous impact on the United States. The transportation system is an essential element of our response to this pandemic but has also been significantly impacted across all modes, both passenger and goods movement. This environment is where research is needed most. TRB's Transportation Research Circular E-C267: Summary of T...
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Transportation Research Circular E-C266
October 07, 2020
The COVID-19 pandemic has impacted transportation agencies across the U.S. in a variety of ways. On July 15, 2020, TRB's Transportation Asset Management Committee hosted a webinar that featured executives and CEOs from state, regional, and transit agencies. Transportation Research Circular E-C266: Transportation Asset Management in a COVID-19 World captures the details of the discussion on how the...
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NCHRP Research Report 943
October 06, 2020
Most laws, ordinances, and rules concerning truck routes are established for through trucks; however, trucks with local origins or destinations may use other roads and streets to travel to and from the established truck routes. The TRB National Cooperative Highway Research Program's NCHRP Research Report 943: Design and Access Management Guidelines for Truck Routes: Planning and Design Guide helps...
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Transportation Research Circular E-C265
September 29, 2020
TRB hosted the Transportation Resilience 2019: 2nd International Conference on Transportation Resilience to Natural Hazards and Extreme Weather Events (TR2019) at the National Academy of Sciences Building in Washington, D.C., November 13–15, 2019. The primary purpose of TR2019 program was to present advancements made in transportation systems resilience to natural hazards, climate change, and impa...
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September 24, 2020
The Alabama Department of Transportation (DOT) incorporated post-construction stormwater management design into the overall roadway design process. The Texas DOT developed the approval process for products used in the construction of a roadway to promote vegetation. And the Virginia DOT improved the management of data associated with stormwater infrastructure best management practices to effective...
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Critical Issues in Transportation 2019
September 17, 2020
Critical Issues in Transportation 2019 now includes addendums focused on COVID-19 and racial equity . In this report, which is updated periodically by the TRB Executive Committee, a series of challenging questions are posed to explore issues and opportunities that may arise 10 to 20 years into the future. These questions, 63 in all, have been organized into 12 topic areas and provide a way to fram...
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September 14, 2020
Careers in science, engineering, and medicine offer opportunities to advance knowledge, contribute to the well-being of communities, and support the security, prosperity, and health in the United States. But many women do not pursue or persist in these careers, or advance to leadership positions - not because they lack the talent or aspirations, but because they face barriers, including: implicit ...
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