While curbs are useful for many functions, highway design policies typically discourage the use of 6-inch- to 8-inch-tall curbs on high-speed roadways due to their potential to cause drivers to lose control in a crash. NCHRP Research Report 1089: Development of Installation Guidelines for Midwest Guardrail System in Combination with Roadside Curbs for MASH TL-3 Applications , from TRB’s National Cooperative Highway Research Program, develops guidelines for the use and placement of 31-inch-tall Midwest Gu…