TRB is pleased to announce that the TRB Centennial Book is now available for purchase. In The Transportation Research Board, 1920–2020: Everyone Interested Is Invited , author Sarah Jo Peterson tells the story of how people and institutions created and have continued to shape TRB. In a compelling narrative accompanied by more than 150 images exploring the history of transportation and research,...

States and localities are beginning to recognize and act on the connection between health and transportation. A growing number of entities have produced a number of resources, guidance documents, and strategic plans on the topic. The TRB National Cooperative Highway Research Program's  NCHRP Research Report 932: A Research Roadmap for Transportation and Public Health builds upon this body ...

Prior to 2013, the use of bicycle-specific signals in the U.S. was limited to a few jurisdictions. However, in recent years, the number of installations has grown rapidly. This research identified more than 500 intersections using bicycle signals in a variety of contexts. Despite the recent approval and practice, the TRB National Cooperative Highway Research Program's NCHRP Web-Only Document 27...

This article is adapted from The Transportation Research Board, 1920–2020: Everyone Interested Is Invited , to be published by the National Academies Press in January 2020. TRB can be best understood as an infrastructure—one that people purposely designed, carefully constructed, and devotedly maintained to share and strengthen knowledge about transportation. The core missions and structures tha...

The November-December 2019 issue of TR News - with a focus on climate change resilience - is available in hard copy and digital copy for subscribers. For those who are not subscribers, the table of contents is available. Other feature articles in the issue include ones on the history of both TRB and transportation in general and a preview of the TRB Annual Meeting slated for January in Washingt...

Self-driving cars, rising temperatures and sea levels, increasingly strong weather events, changing citizen preferences, and innovations in technologies that are revolutionizing purchasing behavior, social interaction, financial transactions, communications, and travel—the transportation world is changing very rapidly. Transportation Research Circular E-C256: Managing Transportation Systems in ...

Recent studies show that organizations with the most diverse workforces realize better decision-making and more efficiency, innovation, and profitability than do their less-diverse peers. This article in TR News Issue 323 (September/October 2019) details demographic trends shaping the nation’s workforce—the large millennial population, the rise of neurodiverse workers, and dramatically increase...

The U.S. transportation system is developed, operated, and managed by private and public enterprises and, as of 2012, employs approximately 4.3 million people. This number is even larger when it accounts for people whose jobs are entirely dependent on the transportation system, from delivering fresh lettuce year-round to a fast response to a fire alarm to the reliable delivery of children to sc...

The condition of sidewalks and pathways affect all pedestrians, but people with disabilities, older adults, and injured veterans are especially affected by them. For instance, among wheelchair users surveyed in the U.S., the wheelchair and the physical environment were the most significant factors limiting community participation. The TRB IDEA (Innovations Deserving Exploratory Analysis) Progra...

Measures that are effective at reducing speed, such as speed humps and mini traffic circles, are sometimes used in low-speed areas such as school zones. But they are often not recommended or allowed (via local policy) on the higher-speed streets typically associated with the highest injury severity for pedestrians. For those higher-speed streets, redesigning them to communicate lower speed, suc...

Automated vehicles, shared mobility, and other transformational technologies in transportation provide a unique opportunity to make significant advances in meeting societal goals. TRB's Transportation Research E-Circular 253: Transformational Technologies in Transportation: Impacts on Traditional Research Processes and Programs explores whether and how, in an era of rapidly evolving transformat...

Global business and tourism depend heavily on the efficient operation of airports and movement of passengers, baggage, and cargo across many areas. With increasing demand and connectivity requirements for airports comes the need for more sophisticated simulation and modeling tools to validate design assumptions. Furthermore, airport design and planning decisions have significant impacts on poli...

State transportation agencies will always fulfill a role in the emergency-management effort - for all incidents, from the routine traffic incident through major emergencies to catastrophic events. State agency plans and procedures are expected (indeed required if the agency seeks federal compensation) to be related to state and regional emergency structures and plans. This involves multi-agency...

Since 2009, when NCHRP's last Security 101 report was released, there have been significant advances in transportation security approaches, including new strategies, programs, and ways of doing business that have increased the security of transportation systems as well as ensured their resiliency. Hazards and threats to the system have also continued to evolve since 2009. While the inciden...

A featured article in the March-April 2019 issue of the TR News explores TRB's most recent list of the critical issues facing transportation today. Theses issues include transformational technologies and services; serving a growing and shifting population; energy and sustainability; resilience and security; safety and public health; equity; governance; system performance and management; fu...

The Transportation Research Record (TRR): Journal of the Transportation Research Board, through SAGE Publications, has released full text articles of the most read and cited papers of 2016 and 2017. This collection highlights the unparalleled depth and breadth of coverage the TRR provides to the transportation community. Submit comments and suggestions at trr@nas.edu. The TRR presents the lates...

TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 256: Assessing Interactions Between Access Management Treatments and Multimodal Users describes operational and safety relationships between access management techniques and the automobile, pedestrian, bicycle, public transit, and truck modes. This contractor's report may help assist in the selection of alternati...

TRB’s National Cooperative Highway Research Program (NCHRP) Research Report 900: Guide for the Analysis of Multimodal Corridor Access Management describes operational and safety relationships between access management techniques and the automobile, pedestrian, bicycle, public transit, and truck modes. This report may help assist in the selection of alternative access management techniques ...

TRB's Airport Cooperative Research Program (ACRP) latest Impacts on Practice explores the impact ACRP Synthesis 39 : Airport Wildlife Population Management has had on integrated wildlife management plans at airports. A wildlife biologist at Orlando International Airport utilized this report to develop a holistic approach to mitigating bird strikes with a specific species of heron that thrives i...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 893: Systemic Pedestrian Safety Analysis provides a safety analysis method that can be used to proactively identify sites for potential safety improvements based on specific risk factors for pedestrians. A systemic approach, as opposed to a “hot-spot” approach, enables transportation agencies to identify, prioritize, an...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 880: Design Guide for Low-Speed Multimodal Roadways provides best practice guidance by referencing a range of acceptable elements, criteria, and values for critical dimensions for design of low- to intermediate-speed roadways with a mix of users. The report assists designers in establishing a balance between operational...

TRB’s Transportation Research Record: Journal of the Transportation Research Board has released 14 early access papers addressing pedestrians and bicyclists, including: Park ‘n’ Roll: Identifying and Prioritizing Locations for New Bicycle Parking in Québec City, Canada ( link ) Automatic Background Filtering Method for Roadside LiDAR Data ( link ) How Useful is Travel-Based Multitasking? Eviden...

TRB’s Transportation Research Record: Journal of the Transportation Research Board has released 14 early access papers addressing pedestrians and bicyclists, including: Using Open Source Data to Measure Street Walkability and Bikeability in China: A Case of Four Cities ( link ) Macroscopic Spatial Analysis of Pedestrian Crashes in Medellin, Colombia ( link ) Modeling Pedestrian Crossing Behavio...

TRB's National Cooperative Highway Research Program (NCHRP) Web-Only Document 230: Developing an Expanded Functional Classification System for More Flexibility in Geometric Design, which documents the methodology of NCHRP  Research Report 855 : An Expanded Functional Classification System for Highways and Streets builds upon preliminary engineering of a design project, including developing...

TRB's National Cooperative Highway Research Program (NCHRP) Research Report 855: An Expanded Functional Classification System for Highways and Streets builds upon preliminary engineering of a design project, including developing the purpose and need. In particular, it provides additional contexts beyond urban and rural, facilitates accommodation of modes other than personal vehicles and adds ov...

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 515: Practices for Preventing Roadway Departures identifies and summarizes practices being used by state departments of transportation (DOTs) to prevent roadway departure crashes and to identify the data-driven advantages and disadvantages of these practices. More than half of all traffic fatalities result from roadway depart...

A featured article in the March-April 2018 issue of the TR News explores highlights from the 2018 TRB Annual Meeting. This article provides information about the number of attendees and sessions. It includes pictures of individual events, presenters, and award winners.   The TR News is TRB's bimonthly magazine featuring timely articles on innovative and state-of-the-art research and practi...

To keep pace with accelerating rate of research distribution, the Transportation Research Record: Journal of the Transportation Research Board is now publishing articles as soon as they are finalized. The latest papers to be published are as follows: Use of a Laser Diffractometer to Obtain the Particle Size Distribution of Fine-Grained Soils Interstate Speed Profiles Conditioning and Testing Pr...

The full edition of the July–August 2017  TR News  magazine is now available.  Moving research into practice is the theme of feature articles in this edition. Authors describe today’s successes, present a systematic approach that has proved effective at a state department of transportation, describe federal programs encouraging innovations at the state level, discuss initiatives ...

TRB’s Transportation Research Record: Journal of the Transportation Research Board, No. 2662 consists of 19 papers that explore bicycle transportation, including: Comparing Crowdsourced Near-Miss and Collision Cycling Data and Official Bike Safety Reporting Where Do Bikeshare Bikes Actually Go? Analysis of Capital Bikeshare Trips with GPS Data Bicycle Backlash: Qualitative Examination of Aggres...