Morning rush
19 min 654 trips · 52% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
South StreettoBabcock Street
Green Line
A direct MBTA train from South Street to Babcock Street took a median 19 minutes across 3,295 observed trips; 90% of measured rides finished within approximately 22 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical19 min50th percentile
Slower trip22 min90th percentile
Scheduled17 minmedian timetable
On pace61%within 2 min of schedule
THE SHORT ANSWER
How long does South Street to Babcock Street take?
The median completed ride from South Street to Babcock Street was 19 minutes; the published schedule’s median was 17 minutes.
Based on 3,295 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 19 minutes. That was 1.5 minutes longer than the published schedule.
Nine out of ten measured trips finished within approximately 22 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
South Street to Babcock Street times by daypart
Off-peak produced the fastest median for South Street to Babcock Street; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
19 min 909 trips · 57% on paceEvening rush
19 min 635 trips · 80% on paceOff-peak
18 min 1,097 trips · 59% on paceMEASUREMENT SAMPLE
How South Street to Babcock Street was measured
The South Street to Babcock Street estimate uses 3,295 completed direct-trip stop-timestamp pairs matched to the schedule active for each observed train.
We publish the median because one dramatic delay should not define an everyday journey, and the 90th percentile because riders still need to understand the bad end of normal.
We do not infer why a trip ran slowly. Construction, incidents, crowding and weather require separate evidence.
Read the complete method →MORE FROM South Street
Trips related to South Street to Babcock Street
The South Street to Babcock Street record is accompanied by 6 other measured direct rides beginning at South Street, each with a published median duration.