A Reliability-Based Framework to Assess the Impacts of Increasing Freeways’ Posted Speed Limits

Posted speed limits have a critical impact on highway safety and mobility. Increasing the posted speed limit may increase the risk of collisions and reduce the overall safety level. This study utilized a reliability-based framework to assess the safety impacts of increasing the speed limits on highways. Four highway segments were considered, including tangents, horizontal curves, and crest and sag vertical curves. For each segment, the suitable …