NHDOT used a data-driven process to identify and implement Safe System countermeasures to improve safety on Route 101. The selected alternative—6-foot median buffer with rumble strips and wider pavement markings—addresses both head-on and run-off-road crashes at a much lower cost than median barriers, which extends the project limits from 1.2 miles to 4.7 miles.
Data for Proactive Road Safety: Continuous Pavement Friction Measurement
Kentucky
Pavement Friction Management (PFM) using Continuous Pavement Friction Measurement (CPFM) is a proactive approach for managing pavements for safety throughout the roadway lifecycle. Taking a lifecycle approach to designing, specifying, and maintaining friction performance saved Kentucky more than $1 billion annually and reduced fatal and severe crashes by up to 24%.
The Final Rule on maintaining pavement marking retroreflectivity goes into effect September 6, 2026. Agencies can use recommended methodologies to better prioritize budgets, maximize the life of pavement markings, and improve roadway safety.
