37 Construction services, namely construction and installation of telecommunications infrastructures including cable, conduit, telephone line and CATV installation, installation of manholes and vaults for telecommunications; concrete and asphalt construction, construction of coordinated traffic signal and telemetry systems, towers for wireless communication, infrastructures for wireless, DSL and other high-speed Internet providers, installation of structured cablings systems for voice, data and security; electrical installations for new construction and remodeling of commercial, industrial and governmental buildings; construction, installation and maintenance of street lighting, construction, installation and maintenance of traffic signals; electrical repair and service work for commercial, industrial and governmental facilities; work area protection services, namely, installing and removing barricades, signs, arrow boards