This technical appendix from the TRB Airport Cooperative Research Program, ACRP Web-Only Document 38: Technical Appendix to Air Demand in a Dynamic Competitive Context with the Automobile , supplements ACRP Research Report 204: Air Demand in a Dynamic Competitive Context with the Automobile with more detailed documentation of the research effort, including greater technical detail on the analytical models created for the research and their application.

Construction of load-carrying geosynthetic-reinforced bridge abutments are surging worldwide. The design directly supports the load of bridge girders without the need of deep foundation. TRB is hosting a webinar on Tuesday, May 26, 2020 from 2:00 to 4:00 PM Eastern that will provide an overview, comparison, and discussion of methodologies used in the design of such bridge abutments. They have the potential of alleviating the “bump at the bridge,” expediting construction, and requiring comparatively smal...

TRB released a straight-to-recording series in April that presents highlights and findings of the NCHRP Domestic Scan 16-02 on Landscape Design Practices for Roadside Water Management . This scan investigated how transportation agencies are applying principles and practices of green infrastructure (GI) for roadside water management to mitigate adverse impacts of flooding, drought, and temperature extremes affecting their infrastructure. The videos are available on-demand at no charge. Presenters: Garrett...

The Renewable Fuel Standard (RFS): Waiver Authority and Modification of Volumes , released by the U.S. Congressional Research Service

Is your organization aiming to increase the participation of minority-and women-owned businesses in state and local transportation projects? TRB will conduct a webinar on Wednesday, May 27, 2020, from 2:00 PM to 3:30 PM Eastern to discuss how to meet the goals set by the U.S. Department of Transportation Disadvantaged Business Enterprise (USDOT DBE). State and local transportation projects that receive federal funding are mandated to go through the triennial DBE goal-setting process. Make your next goals...

Deborah Flint, the current President and CEO of Greater Toronto Airports Authority, is a featured volunteer in Issue 324 (November-December 2019) of TRB's magazine TR News . "Be flexible... Be a sponge, open to everything," she says. At TRB, Ms. Flint served on an Airport Cooperative Research Program panel and was previously a member of the ACRP Oversight Committee. In her role in Toronto, she oversees all airport operations, including the security and safety of employees and travelers. Previously, she s...

The charismatic and familiar monarch butterfly serves as a flagship species for pollinator conservation, and gives rights-of-way entities opportunities to engage a diverse array of stakeholders who are invested in not only restoring monarch numbers to sustainable levels, but also mitigating many other environmental and economic issues. This pre-publication draft of the TRB National Cooperative Highway Research Program's NCHRP Research Report 942 Pre-Pub: Evaluating the Suitability of Roadway Corridors fo...

"I fell into transportation domain by chance, pursuing my interests in software and data. And although I kept working in these fields, TRB taught me about transportation and how my software and data expertise could help solve transportation problems," says Nikola Ivanov, Director of Operations at the University of Maryland’s Center for Advanced Transportation Technology (CATT) Laboratory. "Through TRB, I’ve met hundreds of brilliant experts, all of whom help me make a difference in people’s everyday live...

Now available to order from the TRB Bookstore, the Highway Capacity Manual, Sixth Edition: A Guide for Multimodal Mobility Analysis (HCM) provides methods for quantifying highway capacity. In its current form, it serves as a fundamental reference on concepts, performance measures, and analysis techniques for evaluating the multimodal operation of streets, highways, freeways, and off-street pathways. The Sixth Edition incorporates the latest research on highway capacity, quality of service, Active Traffic...

The Federal Highway Administration's “Buy America Act” requires federally funded highway projects to use only steel, iron, and manufactured products produced in the United States. The TRB National Cooperative Highway Research Program's NCHRP LRD 80: Buy America Requirements for Federal Highway Projects summarizes the intent and application of the provision. It also summarizes the procedure that FHWA has implemented for granting waivers and the impact that court interpretation of such waivers has had on t...

Many airports undertake stormwater projects to accommodate facility expansion, address obsolescence, and respond to evolving regulatory requirements. Often, stormwater infrastructure is installed or upgraded on a project-by-project and piecemeal basis, resulting in mismatches of sizes, material types, ages, and conditions. When airports are considering expanding or improving their stormwater facilities, the immediate need for stormwater infrastructure modification may not be clear, and a benefit–cost ana...

Hello Internet! In This Episode: Erin and Weer’d talk (briefly!) about the COVID-19 cancellations, but more extensively about Florida Gubernatorial candidate Andrew Gillum and his, shall we say, interesting night in a South Beach Hotel; the Other Staffers are dealing … Continue reading →

Hello Internet! In This Episode: Erin and Weer’d talk about the ammo and gun shortage in reaction to COVID-19, as well as an innovative strategy for keeping people working and happy; David tells us how to swage your own bullets; … Continue reading →

This comment thread really encapsulated the mentality of the “I’m a gun owner but…” Anti-Gunners.     You can find some info on Mike “The Guy Guy” here and here. But the dialoge between Mike and a Second Amendment Supporter is here: … Continue reading →

Hello Internet! In This Episode: Erin and Weer’d talk about some of the latest restrictions due to the COVID-19 lockdown, and then discuss how it’s affected the latest Magic: the Gathering expansion; David talks about some of the challenges you … Continue reading →

The National Cooperative Highway Research Program's NCHRP Web-Only Document 272: Existing and Emerging Highway Infrastructure Preservation, Maintenance, and Renewal Definitions, Practices, and Scenarios provides appendices to NCHRP Report 750, Volume 7: Preservation, Maintenance, andRenewal of Highway Infrastructure .

Reporting from Wichita is MSE junior Rachel who tells us about her summer internship working with Cessna Aircraft . I am doing a materials internship this summer in Wichita, Kansas at Cessna Aircraft (now part of Textron Aviation), in the metals group of the Materials and Processes Engineering division.  My internship requires me to inspect returned parts […]

Are you looking for specific phrases in transportation research? When submitting keywords or keyword phrases as part of any search in TRID , those words are now highlighted in yellow in both the results list and in individual records. You can turn this feature off in the Advanced Search Filters with the toggle just below the Keywords field.

Greenhouse Gas Reduction Opportunities for Local Governments: A Quantification and Prioritization Framework , released by the National Center for Sustainable Transportation at University of California, Davis