Practices for Controlling Tunnel Leaks

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…

Designing extended sections of highway based on the road design speed is relatively straightforward. However, when applied to interchange ramps where high-speed facilities meet low-speed facilities and drivers are expected to accelerate or decelerate o…

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 …