The life cycle impacts of urban hardscapes are examined in A Combined Urban Metabolism and Life Cycle Assessment Approach to Improve the Sustainability of Urban Hardscapes , a report from the National Center for Sustainable Transportation at the University of California at Davis. Urban hardscapes can contribute significantly to a city’s resource consumption. The report is available for no fee a...

A taconite/mining by-product-based repair compound was developed in Optimized Taconite-Based Pavement Repair Compound and Deployment System , a report from the Minnesota Department of Transportation. The goal of this report is to identify pavement failures under various seasonal weather conditions.

A new prestressing system, named Adaptive Prestressing System, has been proven in this study to be an innovative technique that holds great promise as a transformative, more efficient, and safer prestressing method for concrete crossties in railway systems. The TRB IDEA (Innovations Deserving Exploratory Analysis) Program's Rail Safety IDEA Final Report 33: Adaptive Prestressing System for Conc...

High friction surface treatments are monitored in High Friction Surface Treatment Experimental Feature – Final Report and 3rd Year Monitoring Results , a report from the Alaska Department of Transportation and Public Facilities. These treatments can help to improve road conditions.

A procedure for determining heating of a polymer modified binder (PMB) is described in Mass Change or Loss on Heating of Polymer Modified Binders after Rolling Thin Film Oven (RTFO) Treatment , a report from Austroads. This procedure is applicable to PMBs in the construction and maintenance of pavements. The report is available for no fee after signing into the site.

A procedure for determining the flash point of a polymer modified binder (PMB) is described in Flash Point of Polymer Modified Binders , a report from Austroads. This report intends to indicate fire risk and the presence of volatile oils in PMBs. The report is available for no fee after signing into the site.

The TRB Centennial Book is available for purchase in ebook or print format. 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, she argues...

A collection of test methods and specifications is outlined in Austroads Test Methods and Specifications , a report from Austroads. This compendium includes test methods for aggregates, binders, bituminous mixes, and other materials and specifications. The report is available for no fee after logging onto the site.

The past few years have seen some significant advances in concrete technology. For example, newer concrete incorporating advances in admixtures and cementitious materials has emerged. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 544: Concrete Technology for Transportation Applications documents how state departments of transportation select and deploy concrete technol...

A pavement present serviceability index (PSI) on Wyoming roads is assessed in Developing an Optimization Model for Managing County Paved Roads , a report from the Upper Great Plains Institute at North Dakota State University. This report also develops exclusive PSI pavement prediction models to be more representative for county roads.