BOSTON (WHDH) - The MBTA is advising riders to plan for additional travel time and longer headways on the Red, Orange, Blue, Green, and Mattapan Lines this week as MBTA engineers continue to perform repair validations and speed verifications following a Department of Public Utilities site visit last week.

Riders are encouraged to use the T’s Trip Planner tool at for a list of travel options, including bus routes that run parallel to subway service.

On Friday, the T replaced the global speed restrictions on the Red, Blue, and Orange Lines with targeted block speed restrictions between 10-25 mph in areas that still needed to be inspected or where track conditions do not permit normal speeds.

The Green and Mattapan Lines remain under a global speed restriction of 10-25 mph while inspections continue.

“We understand that riders are frustrated, and we thank them for their patience as we work hard to deliver the reliable system they expect and deserve,” said MBTA Interim General Manager Jeffrey Gonneville in a statement. “The decision to implement these speed restrictions was taken because the safety of our riders and employees is a top priority. We will continue to keep riders updated as we develop a timeline for the completion of this work and a return to a more normal schedule.”

Block speed restrictions of 10-25 mph remain in place on the heavy rail subway lines.

As of Monday morning, there are 19 block speed restrictions on the orange line, 39 on the red line, and six on the blue line.

(Copyright (c) 2022 Sunbeam Television. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Join our Newsletter for the latest news right to your inbox