U.S. Transportation Secretary Elaine L. Chao announced that the U.S. Department of Transportation’s Build America Bureau provided a $851.15 million loan under the Railroad Rehabilitation and Improvement Financing (RRIF) Program to the Massachusetts Bay Transportation Authority (MBTA) for the Train Control Implementation and Rehabilitation Project in New England.  MBTA, the largest transit provider in New England, is implementing train control technology and associated supporting infrastructure required to comply with the Positive Train Control (PTC) standards requirements for improved railroad safety across its entire commuter rail network.  The project includes completing the installation of PTC across the whole system and the installation of the complementary Automatic Train Control (ATC) system on the 170-mile North Side Computer Rail lines.  The project also includes the expansion of buried fiber optic cable network to cover the entire MBTA commuter rail signaling system to enhance commuter rail system resiliency.  PTC systems prevent trains from being routed through misaligned switches, protect against train-to-train collisions, derailments related to speeding, incursion into work zones without proper authority, and protect the movement of trains through failed or inoperative grade crossing systems.  MBTA’s commuter rail network is the fourth-busiest commuter rail in the country (based on average weekday travel), after only the New York-area, Chicago-area, and Washington, DC-area systems.  The MBTA lines go as far south as Providence, Rhode Island, as far north as Newburyport, Massachusetts, and as far west as Worcester and Fitchburg, Massachusetts.

-via Press Release