IFB 123-26 Transit Signal Priority Project

The Massachusetts Bay Transportation Authority (MBTA) has issued Invitation for Bid (IFB) 123-26, solicitation number BD-27-1206-40000-40000-133492, for the Transit Signal Priority (TSP) Project in Union Square, Somerville, Massachusetts. The project involves the installation and maintenance of traffic signals and TSP equipment, including video detection and the replacement of ATC Traffic Controller hardware and software. The scope of work is governed by specific signal and TSP plans for Union Square and Warren Street, as well as Special Provisions 02890. Notably, Addendum 1 clarified that pavement markings and signage are excluded from the scope as they have already been completed. The contract is an open-market solicitation where the award will be granted to the lowest priced responsive and responsible bidder. Evaluation factors for responsibility include the bidder's integrity, financial and technical resources, past performance, and compliance with public policy, such as EEO records and DBE goals. Bidders must provide pricing for TSP detection, signals, signs, markings, and mobilization, with a mandatory 15 percent contingency calculated based on the value of the primary TSP and signal line item. Technical requirements include compliance with MassDOT, MBTA, and NEMA standards, with a specific requirement that all new traffic signal posts feature a square base. The successful contractor must provide five sets of updated cabinet wiring diagrams and conduct training prior to final acceptance testing. Minimum insurance requirements include one million dollars in coverage for Commercial General Liability, Automobile Liability, and Workers Compensation. Bids must be submitted electronically via the COMMBUYS portal by the deadline of September 28, 2026.