The head of the T's Maintenance of Way department told the agency’s board of directors that the track replacement work between the JFK and Braintree stations is of a high enough quality increase the speed limit.

With massive patches of slow zones now mostly repaired, MBTA officials have set their sights on pushing some subway speeds to even higher levels as one of the next major goals.

MBTA officials say they want the red and orange line trains to go faster.MBTA General Manager Phillip Eng says parts of both<a class="excerpt-read-more" href=" More