The M&T Central Lab does assist the Traffic Services Group from time to time. The Lab has equipment for testing LED traffic signals for Luminescence / Brightness. Contact the Structural Materials Lab Supervisor in the Structural Services Unit for this service or questions.
Further information for signals may be found in Section 1098 of the Standard Specifications under "Signals and Intelligent Transportation Systems".The Minimum Sampling Guide has information on signals and what material certifications are required.
