Traffic Control Devices, LLC. (TCD) is an Asplundh company established in 1978. Over the last 3 decades, TCD has earned a rep ... utation of quality in the electrical contracting and transportation engineering industry. We specialize in the design, construction, implementation, and maintenance of Intelligent Transportation System (ITS) projects and their associated communications, control, and display hardware and structures. TCD installs, integrates, tests, and maintains copper, fiber optic, wireless, and hybrid communications systems. Maintaining strong professional relationships throughout the Intelligent Transportation System industry allows TCD to continue to provide the highest quality services, maintenance, enhanced system performance, and value for our clients. Corporate office located at 242 N. Westmonte Drive, Altamonte Springs, Fl 32714. Phone number : 407-869-5300 read more