The MBTA will be shutting down the Orange Line for 30 days beginning August 19 to accelerate needed major track and maintenance work. The shutdown will begin approximately 9 pm on August 19 through September 18 with service resuming on September 19. The MBTA said the 30 day shutdown will provide an opportunity to finish several projects five years faster than originally planned. That work includes track repair, tie replacement, concrete work, and more along the Southwest Corridor, which will improve reliability. Other projects include track replacement, upgrading signal systems, and station improvements.