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...

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...

TR News 336: November-December 2021 examines the history of the MnROAD research facility, redesigning transit for the new mobility future, planning and design of airport terminal restrooms and ancillary spaces, understanding systemic risks of railroad hazmat transport, systems engineering for rural connected vehicle corridors, talent for today and tomorrow, and more.

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...

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...

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 aviation security. But in the 20 years since 9/11, natural disasters, technology changes, and pandemics have presented new challenges. In TR News 335: September–October 2021 authors address these challenges,...

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...

In TR News 334: July-August 2021, members of the Marine Board and TRB’s Marine Group standing committees investigate critically important topics for innovation and research in—and transformation of—the marine transportation system to help achieve necessary strides in emissions reduction, automation, big data, and resiliency by 2050.

The theme of TR News 333: May–June 2021 is diversity, equity, and inclusion in transportation and its critical role in a just, fair, and equitable society. Authors highlight TRB’s initiatives addressing DE&I, along with programs within the larger transportation community, from the federal government to states to universities.

TR News 332: March - April 2021 highlights TRB's 100th Annual Meeting and includes articles also explore mobility and human trafficking, near-road air quality, how to make safer roadway crossings for small wildlife, the state of TRB, and TRB and the Bureau of Transportation Statistics.

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...

Among the topics explored in TR News 331: January–February 2021 are research trends in Transportation Research Record articles; truck size and weight research challenges; National Academies of Sciences, Engineering, and Medicine study on social isolation and loneliness in older adults; future airports, post-hurricane supply chain resilience; Hawaii's Interstate high-tech revamp; and more.

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...

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...

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 ...

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...

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...

TR News 330: November–December 2020 issue of TR News features articles on topics including incorporating resiliency into freight mobility, living with transformational technologies, and pollution-reducing highway barriers.

TR News 328: July–August 2020 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 will explore the evolution of stormwater regulation; how departments of transportation manage water in planning, design, construction, and operations; and more.

TR News 327: May–June 2020 illuminates 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.

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...

TR News 329: September–October 2020 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 they contemplate new directions for transportation.

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...

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...

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...

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...

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...

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...

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...

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...