Southeastern Massachusetts Metropolitan Planning Organization and Southeastern Regional Planning and Economic Development District (2012). "Commuter Rail"(PDF). 2012 Regional Transportation Plan. Archived from the original(PDF) on November 12, 2011.
"Notice of Project Change"(PDF). Massachusetts Department of Transportation. March 15, 2017. Archived from the original(PDF) on April 18, 2017. Retrieved August 13, 2017.
Southeastern Massachusetts Metropolitan Planning Organization and Southeastern Regional Planning and Economic Development District (2012). "Commuter Rail"(PDF). 2012 Regional Transportation Plan. Archived from the original(PDF) on November 12, 2011.
"Notice of Project Change"(PDF). Massachusetts Department of Transportation. March 15, 2017. Archived from the original(PDF) on April 18, 2017. Retrieved August 13, 2017.