OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

South StreettoBoston College

Green Line

A direct MBTA train from South Street to Boston College took a median 2.8 minutes across 3,437 observed trips; 90% of measured rides finished within approximately 3.2 minutes.

Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only

Typical2.8 min50th percentile
Slower trip3.2 min90th percentile
Scheduled3.2 minmedian timetable
On pace99%within 2 min of schedule

THE SHORT ANSWER

How long does South Street to Boston College take?

The median completed ride from South Street to Boston College was 2.8 minutes; the published schedule’s median was 3.2 minutes.

Based on 3,437 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 2.8 minutes. That was within 0.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 3.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

South Street to Boston College times by daypart

Midday produced the fastest median for South Street to Boston College; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

2.8 min 568 trips · 99% on pace

Midday

2.2 min 882 trips · 99% on pace

Evening rush

2.8 min 671 trips · 100% on pace

Off-peak

2.8 min 1,316 trips · 98% on pace

MEASUREMENT SAMPLE

How South Street to Boston College was measured

The South Street to Boston College estimate uses 3,437 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 →