also in 1937, south coast service was rerouted via mansfield; shuttle ran from canton junction to north easton and whittendon, with a small amount of through service to boston. during the 1940s, service between whittendon and north easton was cut for several years, leaving just the north easton shuttles. these too were cut in 1950, but new bedford service was rerouted via stoughton to maintain minimal service on the branch. south coast service alternated between the stoughton and mansfield routes until 1955, when a grade separation project in mansfield forced all service to the stoughton route.