6 rapid transit lines
- 76 total stations (18 transfer stations)
- red line: 19 stops
- yellow line: 18 stops
- blue line: 17 stops
- purple line: 16 stops
- orange line: 14 stops
- green line: 14 stops
5 commuter rail lines
- Worcester-Providence T.F. Green Airport
- Worcester-Boston — South Station
- Fitchburg-Webster
- Worcester-North Amherst
- Worcester-Springfield
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