NEMA TS-2 / TS-4 testing is required to ensure that traffic signal equipment meets Florida Department of Transportation (FDOT) specifications and National Electrical Manufacturers Association standards for safety, compatibility, and performance. This testing verifies electrical, functional, and environmental compliance, ensuring reliable operation within intelligent transportation systems and roadway infrastructure. By confirming compliance to TS-2 and TS-4 requirements, manufacturers and agencies reduce deployment risk, support regulatory approval, and ensure long-term reliability in critical traffic control applications.
Examples of testing include climate testing such as rain, wind, sand, and dust; electrical immunity and susceptibility; roadside vibration and shock; impact resistance; long-term cycling endurance, and environmental exposure, including solar and combined environmental conditions.