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...

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...

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 →

Hello Internet! In This Episode: Erin and Weer’d talk about a defensive gun use that stopped a potential mass shooting, then discuss the assorted nuttery happening in relationship to the COVID-19 quarantine; Loveball returns to the show to talk about what … 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 →

Hello Internet! In This Episode: Erin and Weer’d discuss the increasing desperation of anti-gunners as they react to mass firearm purchases by Americans of all walks of life; Weer’d fisks a stand-up routine by Steve Hofstetter; David tells us how … Continue reading →

Hello Internet! In This Episode: It’s a “Nothing But Weer’d Beard Segments” show, so Erin takes over in order to have some time on-air! Erin and Weer’d discuss certain states relaxing their quarantine, Dick’s Sporting Goods feeling the consequences of … Continue reading →

Hello Internet! In This Episode: Erin and Weer’d discuss the recent spree killing in Canada, and the conspicuous lack of information on it; David talks about gun parts that are great to have around; Weer’d interviews Logan Metesh of High … Continue reading →

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

The Marine Board of the National Academies of Sciences, Engineering, and Medicine (National Academies) is seeking nominations for new members to be appointed to three-year terms that would commence on November 1, 2020. There will be five (5) vacancies on the Board in 2020 and there is particular interest in candidates with expertise in the following areas: Naval Architecture and Naval Engineering Shipbuilding/Shipyard Operations Vessel Pilotage and Harbor Operations Seaport Administration, Planning, and ...

Across the United States, about 7 million children, or 14 percent of all public school students, receive special education services because of their disabilities. Closed schools mean children lose the aides and therapists who provide daily support, leaving parents and teachers to shoulder multiple challenges.

Gov. Mike DeWine included dental offices in the first round of businesses that could reopen on May 1. The Centers for Disease Control and Prevention, the American Dental Association, and the Centers for Medicare and Medicaid Services have all issued warnings that non-emergency dental procedures should wait for now.

This episode originally aired on April 30, 2020. Across the United States, about 7 million children, or 14 percent of all public school students, receive special education services because of their disabilities. Closed schools mean children lose the aides and therapists who provide daily support, leaving parents and teachers to shoulder multiple challenges.

Airports are using tools that help them identify risks within their environment. Most airports are providing a means to report risk. Smaller airports use low-cost options such as email, a 24/7 phone number, or a suggestion box. Larger airports have embraced safety management or enterprise risk management programs that include more expensive reporting and tracking systems. The TRB Airport Cooperative Research Program's ACRP Synthesis 106: Airport Risk Identification and Prioritization Practices provides i...