VibeWire Magazine

Design speed is used to determine all pertinent highway features to obtain a balanced design. Over an extended length of highway, it is desirable to select a uniform design speed. The TRB National Cooperative Highway Research Program’s NCHRP Web-Only D…

In recent years, supplies of high-quality, freshly produced coal ash have declined due to increasing environmental controls and shutdowns of coal-fired powerplants in the United States and elsewhere. While supply has decreased, demand for coal ash for …

Per- and polyfluoroalkyl substances (PFAS) are a class of more than 6,000 contaminants of emerging concern that can harm both ecosystems and human health. These anthropogenic compounds contain carbon–fluorine bonds that make them stable and persistent …

Transportation networks are comprised of infrastructure, institutions, and individuals in diverse roles. When networks are disrupted, relationships between these roles can determine the cost, duration, and extent of impact for the entire system. Coordi…