Taunton, Fall River, and New Bedford, which were last served by commuter service in 1958. A full planning process was held from 1990 until its suspension in 2002. Planning restarted in 2007, with environmental documentation completed in August 2013. Plans were modified into two phases in 2017 due to an increase in costs. Phase I is under construction to run diesel service beginning in 2023 as an extension of the Middleborough/Lakeville Line via the Middleboro Secondary. Phase II, planned for 2030, would extend the Stoughton Branch of the Providence/Stoughton Line over a reactivated line with electric service. Other extensions Two extensions of existing lines have been studied in the 2020s: Extension of the Middleborough/Lakeville Line to Buzzards Bay or Sagamore (both in Bourne) to serve Cape Cod was studied in 1997, and extension to Buzzards Bay was again studied in 2007. The extension was again proposed after the 2013 introduction of the CapeFLYER. The town of Bourne voted in 2015 to join the MBTA district. MassDOT began planning a possible commuter rail trial service in October 2015. The proposed service, which was to have shuttle trains between Bourne and operated by Massachusetts Coastal Railroad, was rejected by the MBTA Fiscal Management and Control Board in April 2016. Middleborough station, which will replace Middleborough/Lakeville in 2023 when South Coast Rail service begins, was built with space for a potential future platform for shuttle trains. A 2021 study analyzed two alternatives for service to Buzzards Bay or Bourne station. Middleborough–Buzzards Bay shuttle service with 7 daily round trips was expected to have 1,710 total daily boardings, while Middleborough–Bourne service with 10 daily round trips (including two off-peak Boston–Bourne round trips) was expected to have 2,540 total daily boardings. Extension of the Lowell Line to Manchester and Nashua, New Hampshire has been proposed since the 1980–81 pilot service. The extension has been a politically contentious issue at the state level in New Hampshire, with Democratic politicians supporting the service and Republican politicians opposing it. A 2014 alternatives analysis recommended several possible services, including commuter rail to Nashua or Manchester or intercity rail to Concord, for further evaluation. Engineering and design work for commuter service to Manchester began in late 2020, but was terminated in late 2022 by the state Executive Council. Several other extensions of existing lines and restoration of service to disused lines have been studied in the past: Extension of the