Thailand’s Office of Insurance Commission expanded its model road safety community initiative to Nakhon Nayok and Suphan Buri, using accident and compulsory motor insurance data alongside community input to identify recurring accident locations, high-risk groups and unsafe driving behavior. The assessments focused on Highway 3049 in Nakhon Nayok and Highway 321 and urban roads in Suphan Buri, with motorcyclists identified as the principal risk group in both provinces. Nakhon Nayok recorded 85 road deaths and 926 injuries in 2025, with motorcycles involved in 73.2% of accidents and 77.3% of motorcycle fatalities not wearing helmets. Suphan Buri recorded 222 deaths and 3,484 injuries, with motorcycles involved in 89.1% of accidents and 86.1% of motorcycle fatalities not wearing helmets. Agreed priorities include reducing speeds near intersections and communities, improving warning signs and road markings, reorganizing intersections and U-turn points, and promoting helmet use and safe following distances. The identified risk locations, community proposals and analysis will be combined with findings from Prachin Buri and Nakhon Sawan. The resulting database will support work with local authorities to improve hazardous locations, implement road safety measures and monitor outcomes in each area.