With the MBTA's announcement Monday, the Red Line joins the Orange and Blue lines in running free of slow zones.

For the first time in decades, the Red Line is entirely free of slow zones. According to the MBTA, it’s been at least 20 years since the busy subway line, running south from Alewife toward Braintree and back again,

The MBTA's Red Line doesn't have any speed restriction zones for the first time in more than 15 years. Why it matters: Getting the T's most popular line into shape has been a long-term goal of MBTA general manager Phillip Eng and the agency's focus on repairs,

The Massachusetts Bay Transportation Authority’s recent maintenance shutdown of a portion of the Red Line has cleared the route of slow orders for the first time in at least 20 years, the MBTA says. The work between the Harvard and Broadway stations Nov.

The Red Line is now operating with no slow zones from end to end, leaving the Green Line as the only subway line with slow zones in the entire MBTA system.

The MBTA Red Line is now free of slow zones for the first time in decades thanks to recent track improvements.

The MBTA announced last week that the last remaining slow zones along the Red Line would be eliminated by Monday, when the Harvard to Broadway section of the route comes back online following a weeklong shutdown for maintenance.