Part of the Medford Industrial track should probably be listed as railway=disused because it appears to be very decayed on Google Street View.

https://www.google.com/maps/@42.4131787,-71.0792446,3a,60y,90.02h,55.99t/data=!3m6!1e1!3m4!1sxDF9hd-eCzsbsy9B1BerOQ!2e0!7i16384!8i8192?entry=ttu