Founded in 1982, Traffic & Lighting Systems is a specialty electrical contractor made up of 100 employees in three divisional ... offices. DIVISIONS Oklahoma City, OK Tulsa, OK Springdale, AR SERVICES We specialize in sales, installation and maintenance of: Traffic Signal Systems Roadway Illumination Systems Intelligent Transportation Systems (ITS) We are pre-qualified and licensed in Oklahoma, Arkansas, Kansas, Missouri and Texas. For more information, visit www.tlsokc.com. read more