20260911 Items List Signals Only Union Sq Somerville.xlsx

This is an equipment items list for the Transit Signal Priority Project (IFB 123-26) in Massachusetts, specifically detailing signal-only equipment required for intersections in Somerville. The document itemizes quantities needed across four intersection segments: Somerville/Warren, Somerville/Washington/Webster, Somerville/Prospect, and Prospect/Webster. Equipment categories include Transportation System Personnel (TSP) components such as camera processors and IP cameras, managed Ethernet switches, and cabling; signal equipment including 12-inch and 4-inch LED signal indications, APS push buttons, and signal lenses; infrastructure items such as traffic signal posts and concrete foundations; traffic signal controllers and ATC-type cabinets with concrete foundations; and conduit systems. Most line items show zero quantities, indicating selective equipment deployment based on specific intersection requirements.

The project assumes existing conduits maintain sufficient capacity to accommodate new equipment wiring, with new 3-inch PVC conduit installation required only across Washington Street westbound to serve new Accessible Pedestrian Signal (APS) equipment. The list includes placeholder rows for mobilization/demobilization percentages and contingency allowances, though these percentages are not populated in the current document. The note indicates this items list is not applicable for all intersections in the project scope, suggesting a modular approach to equipment procurement based on individual intersection needs and existing infrastructure conditions.