Northeast Corridor (North)
Penn Station (New York City) to Harold
Harold to New Rochelle
New Rochelle to Stamford
Stamford to Norwalk
Norwalk to Devon
Devon to New Haven
New Haven to New London/Groton
New London/Groton to Providence
Attleboro to Providence
Canton Junction to Attleboro
Readville to Canton Junction
Forest Hills to Readville
Back Bay to Forest Hills
South Junction to Back Bay
Boston South Station
New Haven to Springfield
New Haven to Hartford
Hartford to Springfield