The work under this contract consists of furnishing all necessary labor, materials, tools, and equipment to complete traffic signal improvements as described under the Andover Street / North Street Traffic Signal Improvements Project, Contract PW-25-03. The work includes but is not limited to the replacement of the existing malfunction management units (mmu), installation of a controller in the existing controller cabinet, updates to signal timing, installation of new 3-section signal heads and 4-section signal heads on existing mast arms, new pedestrian signal heads and a pushbutton on a new post, installation of new signage on the existing mast arm, a 360 video detection camera mounted with extension bracket, and the installation of ramps at the crosswalk with detectable warning panels that are in accordance with MassDOT construction specifications, and all else necessary for the successful completion of the work. No guarantees are made for the amount of work to be done. Final quantities will be determined by the Engineer based on bid pricing received. The Owner does not guarantee a specific quantity to be purchased, or items to be used.