Dynamic part-time shoulder use (D-PTSU) practices are examined in Decision Support Framework and Parameters for Dynamic Part-Time Shoulder Us e, a report from the U.S. Federal Highway Administration. D-PTSU opens shoulders for travel beyond fixed time periods by matching supply-side strategies in accordance with prevailing conditions and travel demands.

The Wisconsin DOT issues both single- and multi-trip permits for Oversize–Overweight (OSOW) vehicles. As the number of OSOW vehicle permits issued in Wisconsin have increased in recent years, the management and analysis of OSOW permit data has become more labor-intensive and time-consuming. This "Research Pays Off" feature in  TR News edition 324 (November-December 2019), by Hani Titi, Nic...

The performance of ultra-thin pavement in winter maintenance operations is determined in Ultra-Thin Bonded Wearing Course (UTBWC) Winter Maintenanc e, a report from the Minnesota Department of Transportation. This report identifies the advantages and disadvantages of ultra-thin pavement during winter conditions.

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...

Temporary traffic management practices are outlined in Guide to Temporary Traffic Management: Set , a set of reports from Austroads. The report provides guidance to plan and implement safe and efficient temporary traffic-management designs. It is available for no fee after logging onto the site.

As of June 2019, transportation network companies (TNCs) such as Uber and Lyft operate in the ground transportation markets at all major domestic commercial airports. The rapid emergence has presented multiple challenges to airport operators, states, regional transit authorities, and city governments. The pre-publication draft of the TRB Airport Cooperative Research Program's ACRP Research Repo...

The needs of airports may vary depending on the types of operations typically conducted at the airport, as well as the type of weather common to the airport. The TRB Airport Cooperative Research Program's ACRP Syntheis 105: Airport Surface Weather Observation Options for General Aviation Airports aims to provide the operators of general aviation (GA) airports a comprehensive source of informati...

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...

As transit agencies, local governments, and citizens look for ways to improve existing, and start new, transit service, many of them are turning to the Quick-Build (Tactical Urbanism) methodology. This approach uses inexpensive, temporary materials and short-term tactics as a way of implementing projects in the short-term, while longer-term planning takes place. The TRB Transit Cooperative...

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...