Work includes, but is not limited to replacement of the existing track with new track, ties, ballast, and sub ballast; construction of a new center boarding platform to include SMART standard amenities, shelters, lighting, CCTV security cameras, card vending machine(s), real-time passenger signs, etc.; several bridge replacements or refurbishments, including a significant bridge crossing the Russian River; all new and existing grade crossings to be reconstructed, construction of a non-motorized bicycle and pedestrian pathway from Windsor to Front Street in Healdsburg, extension of SMART’s existing Enhanced Automatic Train Control (EATC) train control system, extension of SMART’s communication system to support a closed SMART network communication system, etc.