服務日期起始時間從 01:16 出發於 2026年9月13日預定出發顯示 50公車行程至預定預期時間171Logan Airport via Andrew04:17—171Logan Airport via Andrew04:47—SL1South Station05:45—SL1South Station06:00—SL1South Station06:15—SL1South Station06:26—SL1South Station06:36—SL1South Station06:46—SL1South Station06:56—SL1South Station07:07—SL1South Station07:17—SL1South Station07:27—SL1South Station07:37—SL1South Station07:48—SL1South Station07:58—SL1South Station08:08—SL1South Station08:18—SL1South Station08:29—SL1South Station08:39—SL1South Station08:49—SL1South Station08:59—SL1South Station09:10—SL1South Station09:21—SL1South Station09:33—SL1South Station09:44—SL1South Station09:55—SL1South Station10:06—SL1South Station10:17—SL1South Station10:28—SL1South Station10:39—SL1South Station10:50—SL1South Station11:01—SL1South Station11:12—SL1South Station11:23—SL1South Station11:34—SL1South Station11:45—SL1South Station11:57—SL1South Station12:09—SL1South Station12:21—SL1South Station12:31—SL1South Station12:42—SL1South Station12:54—SL1South Station13:06—SL1South Station13:16—SL1South Station13:28—SL1South Station13:40—SL1South Station13:52—SL1South Station14:00—SL1South Station14:06—SL1South Station14:19—51–100 →計劃、預期與觀察值仍然分開。空白觀察從不顯示為準時。