| Stop ID | Short Name | Long Name |
|---|
| 70065 | Porter | Porter - Red Line - Ashmont/Braintree |
| 70066 | Porter | Porter - Red Line - Alewife |
| FR-0034 | Porter | Porter - Commuter Rail |
| FR-0034-01 | Porter | Porter - Commuter Rail - Track 1 (Outbound) |
| FR-0034-02 | Porter | Porter - Commuter Rail - Track 2 (Boston) |
| door-portr-cracross | Porter - Massachusetts Ave (West), Buses | Porter - Massachusetts Ave (West), Buses |
| door-portr-crtransfer | Porter - Massachusetts Ave (East), Buses | Porter - Massachusetts Ave (East), Buses |
| door-portr-elevator982 | Porter - Somerville Ave, Massachusetts Ave (Elevator) | Porter - Somerville Ave, Massachusetts Ave (Elevator) |
| door-portr-elevator985 | Porter - Somerville Ave (Elevator) | Porter - Somerville Ave (Elevator) |
| door-portr-escal | Porter - Somerville Ave, Massachusetts Ave | Porter - Somerville Ave, Massachusetts Ave |
| node-504-lobby | Porter | Porter - Bottom of escalator from Somerville Ave to lobby |
| node-504-street | Porter | Porter - Top of escalator from Somerville Ave to lobby |
| node-505-lobby | Porter | Porter - Bottom of escalator to Somerville Ave from lobby |
| node-505-street | Porter | Porter - Top of escalator to Somerville Ave from lobby |
| node-506-nbplatform | Porter | Porter - Bottom of escalator from Alewife platform to Ashmont/Braintree platform |
| node-506-sbplatform | Porter | Porter - Top of escalator from Alewife platform to Ashmont/Braintree platform |
| node-507-nbplatform | Porter | Porter - Bottom of escalator from Alewife platform to Ashmont/Braintree platform |
| node-507-sbplatform | Porter | Porter - Top of escalator from Alewife platform to Ashmont/Braintree platform |
| node-509-lobby | Porter | Porter - Top of escalator from lobby to Red Line platforms |
| node-509-sbplatform | Porter | Porter - Bottom of escalator to Red Line platforms from lobby |
| node-510-lobby | Porter | Porter - Top of escalator to lobby from Red Line platforms |
| node-510-sbplatform | Porter | Porter - Bottom of escalator from Red Line platforms to lobby |
| node-511-lobby | Porter | Porter - Top of escalator to lobby from Red Line platforms |
| node-511-sbplatform | Porter | Porter - Bottom of escalator from Red Line platforms to lobby |
| node-982-lobby | Porter | Porter - Lobby level of Elevator 982 between street and lobby |
| node-983-lobby | Porter | Porter - Lobby level of elevator to Red Line platforms |
| node-983-nbplatform | Porter | Porter - Alewife platform level of Red Line, lobby elevator |
| node-983-sbplatform | Porter | Porter - Ashmont/Braintree platform level of Red Line, lobby elevator |
| node-985-lobby | Porter | Porter - Lobby level of Elevator 985 between street and lobby |
| node-986-crplatform | Porter | Porter - Commuter Rail level of elevator between lobby and Commuter Rail |
| node-986-lobby | Porter | Porter - Lobby level of elevator between lobby and Commuter Rail |
| node-987-lobby | Porter | Porter - Lobby level of elevator to Red Line platforms |
| node-987-nbplatform | Porter | Porter - Alewife platform level of Red Line, lobby elevator |
| node-987-sbplatform | Porter | Porter - Ashmont/Braintree platform level of Red Line, lobby elevator |
| node-portr-506stairs-nbplatform | Porter | Porter - Bottom of stairs between Alewife platform and Ashmont/Braintree platform |
| node-portr-506stairs-sbplatform | Porter | Porter - Top of stairs between Alewife platform and Ashmont/Braintree platform |
| node-portr-507stairs-nbplatform | Porter | Porter - Bottom of stairs between Alewife platform and Ashmont/Braintree platform |
| node-portr-507stairs-sbplatform | Porter | Porter - Top of stairs between Alewife platform and Ashmont/Braintree platform |
| node-portr-crramp-elevator | Porter | Porter - Bottom of Commuter Rail platform ramp |
| node-portr-crramp-minihigh | Porter | Porter - Top of Commuter Rail platform ramp |
| node-portr-crstairs-crplatform | Porter | Porter - Top of stairs between Commuter Rail and lobby |
| node-portr-crstairs-lobby | Porter | Porter - Bottom of stairs between Commuter Rail and lobby |
| node-portr-eaststairs-crplatform | Porter | Porter - Bottom of stairs between Commuter Rail platform and east side of Mass Ave |
| node-portr-farepaid | Porter | Porter - Paid side of fare gates |
| node-portr-fareunpaid | Porter | Porter - Unpaid side of fare gates |
| node-portr-lobbyrlstairs-lobby | Porter | Porter - Top of stairs between Red Line platforms and lobby |
| node-portr-lobbyrlstairs-sbplatform | Porter | Porter - Bottom of stairs between Red Line platforms and lobby |
| node-portr-massavestairs-crplatform | Porter | Porter - Top of stairs between Massachusetts Ave and lobby |
| node-portr-massavestairs-lobby | Porter | Porter - Bottom of stairs between Massachusetts Ave and lobby |
| node-portr-somervilleavestairs-lobby | Porter | Porter - Bottom of stairs between Somerville Ave and lobby |
| node-portr-somervilleavestairs-street | Porter | Porter - Top of stairs between Somerville Ave and lobby |
| node-portr-weststairs-crplatform | Porter | Porter - Bottom of stairs between Commuter Rail platform and west side of Mass Ave |
| node-portr-weststairs-street | Porter | Porter - Top of stairs between Commuter Rail platform and west side of Mass Ave |