This contract is to provide the material, equipment and labor for the maintenance and alteration of signalized intersections, signal coordination systems, pedestrian signals and other traffic components or devices statewide. The work includes both on-call emergencies and maintenance repairs. This work consists of providing a straight boom lift, up to 80 foot, with 360° platform rotation for easy boom positioning and self-leveling platform. Booms can be raised, lowered, and extended horizontally while the work platform remains stable and straight. The lift shall maneuver and steer in any direction, even while the platform is extended. A 4WD model is required for all Department tasks and site conditions. Hydrostatic drive, positive traction, oscillation axles and proportional controls shall be provided. Use lifts equipped with 6 foot articulating jib extensions or rotating jib models. The Department may require Night Work to minimize traffic conflicts on some work sites.