TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 392: Transportation’s Role in Emergency Evacuation and Reentry explores information on transportation’s role in emergency evacuation and reentry by summarizing aspects of its planning, control, and research as well as highlighting effective and innovative practices.  View Report read more →

The report is designed to provide transportation tunnel owners and operators with guidelines for protecting their tunnels by minimizing the damage potential from extreme events such that, if damaged, they may be returned to full functionality in relatively short periods. The report examines safety and security guidelines for owners and operators of transportation tunnels to.. read more →