Technical report/Institute of Traffic Engineers ; 1
Purpose -- General -- Housing, doors, etc. -- Color definitions for traffic signal lenses -- Certified duplicate limit glasses -- Materials and performance of traffic signal lenses -- Arrow lenses -- Reflectors -- Candle power distribution -- Spurious indications -- Lamps -- Electrical components.
The purpose of this standard is to provide a guide for the preparation of minimum purchase specifications for adjustable face vehicle traffic control signal heads. This standard represents the minimum requirements for the equipment described.