The Virginia Department of Transportation (VDOT) intends to enter into a contract with a qualified firm to provide corrective maintenance services and technology upgrades on an on call as needed basis. The upgrades or changes (e.g. corrective maintenance) to existing signalized intersections may include the following: 1. Replacement, modification, upgrade, removal or additions at existing signalized intersections; 2. Replacement, modifications, upgrade, removal or additions of communications between signalized intersections; and, 3. Replacement, modification, upgrade, removal or additions at existing roadway, highway, parkn-ride, and sign lighting. The purpose of this request is to acquire services for Traffic Engineering Maintenance work. Services requested are to include, but are not limited to, the following: Maintenance of Traffic Signals; Installation and Removal of Conductor Cable; Installation, Removal, and Relocation of Junction Boxes; Erosion & Sediment Control Measures; Work in Controller Cabinet; Reconstructing Test Hole areas; Sign Installation; Foundation Installation; Flashing Beacon Installation and Reinstallation; Flasher Installation; Electrical Service Connection; Installation of Traffic Signal Heads, temp wooden poles, Hanger Assemblies, Conductor Cable, etc.; Installation of Pedestrian Accommodations; Installation of Trenched and Bored Conduit; Test Bores; etc...