What program does the Federal Highway Administration use to help determine appropriate speed limits?

The correct answer is USLIMITS. This program is utilized by the Federal Highway Administration to establish appropriate speed limits based on statistical analysis and real-world data. USLIMITS takes into account various factors such as road characteristics, crash history, and surrounding environments to recommend speed limits that enhance safety while accommodating the flow of traffic.

By using a data-driven approach, USLIMITS aims to promote safer driving conditions by setting speed limits that reflect safe operating speeds for vehicles. This method helps in minimizing accidents and ensuring that speed limits are not arbitrarily set, thereby supporting both driver compliance and overall traffic safety. The success of this program showcases the importance of research and analysis in traffic engineering and policy development.