Specifications include, but are not limited to: The purpose of this request for proposal is to enter into an on-call style contract with qualified firms to maintain & repair elements of the UDOT Advanced Traffic Management System (ATMS) throughout the State of Utah. The ATMS network in Utah is diverse in equipment, location and technologies used. While the majority of the system exists in the heavily urbanized Wasatch Front, the overall system reaches to the farthest corners of Utah (Blanding, St. George, Snowville, Logan, Vernal, Delta). Devices include ramp meters, detector stations, cameras, dynamic signs, weather sensor stations, variable message signs, and the communications & power infrastructure supporting all of this.