Muni’s Next Train Fleet: Breda Disqualified From Another Contract
For some history, see this AU thread from 2003.As Muni seeks its next-generation fleet of light-rail vehicles to serve the metro system, the manufacturer of its current, notoriously unreliable train cars has been barred from competing for a new contract. Italy-based AnsaldoBreda, which produced the LRVs that Muni riders use today, was the only one of four prospective manufacturers which didn’t meet the new criteria set by the SF Municipal Transportation Agency....
The dispute comes at a time when the SFMTA is looking to replace its aging rail fleet of 151 train cars, the “useful life” of which is expected to end in 2021, with an even larger fleet of up to 260 cars that will be needed to serve the Central Subway when it opens in 2019. Since the Breda trains went into operation in 1996, they’ve continued to plague Muni with a host of mechanical issues and design flaws....
The list of problems with the Breda LRVs include frequent malfunctions with its doors and mechanically-raised steps, as well as intake vents placed on the bottom of the trains, where they frequently get clogged by debris and cause costly disruptions to the vehicles’ propulsion systems. Those vents are normally placed on the top or sides of vehicles, according to Muni’s director of transit, John Haley.
The on-time performance of Muni’s metro system is about 50 percent. Haley said 70 percent of the delays are attributable to mechanical failures, and 67 percent of those are due to the peculiar shortcomings of Breda LRVs described above. Only 114 of the system’s 151 cars are in use on an average day, with most others in need of repair.
Breda trains are also unusually wide, which Haley said puts stress on cables when trains make tight turns, while the excessive weight of the vehicles puts extra stress on rails and causes notorious levels of noise and vibration when running on city streets.
The Breda train cars also don’t de-couple very well, Haley said, which hinders Muni managers’ ability to add or subtract car capacity where needed and to run three-car trains....