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 Transportation Research Needs Related to COVID-19 details meetings with high-level participants who developed ...

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 pandemic has impacted their agencies and their planned investments in the transportation systems they manage...

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 impacts from extreme weather events. Transportation Research Circular E-C265: Transportation Resilience 2019: 2nd...

The Conference on Health and Active Transportation brought together leaders from the transportation and health disciplines to chart a course for the future of active transportation. TRB's Transportation Research Circular E-C264: Conference on Health and Active Transportation compiles comments of the plenary sessions and individual breakout sessions.

The current state of mobility on demand (MOD) is explored in Transportation Research Circular E-C244: Mobility on Demand: A Smart, Sustainable, and Equitable Future. The publication is the synopsis of a January 13, 2019, workshop that examined next steps for preparing for a transition to autonomy, and discussed ways to optimize sustainability and ensure equitability. The workshop emphasized the role of public transit, shared mobility, and automation in shaping the future of mobility. The market for perso...

TRANSED is the International Conference on Mobility and Transport for Older Adults and People with Disabilities. Transportation Research Circular E-C262: TRANSED 2018 is a sample of current research and practice in the field of accessible transportation for older adults and people with disabilities. The research was presented at TRANSED on November 12-15, 2018, in Taipei, Taiwan.

The use of performance measures and data is informing transportation decision making.  Transportation Research Circular E-C263: Conference on Performance and Data in Transportation Decision Making summarizes many presentations from the conference, which attracted more than 350 professional transportation planners, consultants, industry experts, and academic researchers, from 42 states and three countries, to Atlanta, Georgia.

Transportation Research Circular E-C259: International Transportation and Economic Development Conference 2018 presents the proceedings from the ITED 2018. The report follows the general conference agenda, with presentations by speakers in the four plenary and 12 general sessions summarized. A list of the posters presented in one session is provided in Appendix A and the final program is provided in Appendix B.

A clear funding and business case –neither of which have yet been clearly articulated – will be important for the success of AVs and shared mobility. Transportation Research Circular E-C261: TRB Forum on Preparing for Automated Vehicles and Shared Mobility: Mini-Workshop on the Economic Implications of Automated Vehicles and Shared Mobility details the roles of government and the public sector as these technologies are advanced and also lists research that is needed. The National Academies–TRB Forum on P...

Scaling loose rocks from slopes adjacent to highways is a simple and effective measure for temporarily reducing the risk of rockfall potential on naturally occurring bedrock outcrops and highway rock–soil cuts. However, the current practice in estimating scope of work and contracting rock scaling projects are inconsistent from agency to agency. Many owners and transportation agencies conduct scaling work on a reactionary basis because of continued or prolonged rockfall activity. Transportation Research C...