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 / Ames Pond Drive Traffic Signal Improvements Project, contract PW-25-04. 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, updates to signal phasing, installation of new 3-section signal heads and 4-section signal heads on existing mast arms, new pedestrian signal heads and pushbuttons on a new post, 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.