Broken Axle Caused June Red Line Derailment

A 27-year-old axle on a Red Line car fractured and caused a June 11 derailment, MBTA officials announced Monday, offering a clearer picture of the problem that has led to months of delays and headaches on a train line that transports hundreds of thousands of commuters.

South Shore Shake-Up

State Street Corp.’s recent decision to sublease two of its four Quincy office buildings totaling nearly 390,000 square feet shakes up a suburban submarket that’s been the heart of the financial service provider’s back office presence in Massachusetts. Will new projects Dorchester draw away tenants?