The MTA has been under pressure since it was revealed that New York City has the most expensive subway construction costs in the world. For example, the price tag for the East Side Access tunnel, which will connect the Long Island Rail Road to Grand Central Station in Manhattan, is currently at $3.5 billion per mile. San Francisco is also home to some of the world’s highest infrastructure costs, with one of its major projects, a tunnel between the Salesforce Transit Center and a Caltrain station, expected to cost $3 billion per mile.
