OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Griggs StreettoBabcock Street

Green Line

A direct MBTA train from Griggs Street to Babcock Street took a median 6.2 minutes across 3,437 observed trips; 90% of measured rides finished within approximately 8.2 minutes.

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

Typical6.2 min50th percentile
Slower trip8.2 min90th percentile
Scheduled6.2 minmedian timetable
On pace91%within 2 min of schedule

THE SHORT ANSWER

How long does Griggs Street to Babcock Street take?

The median completed ride from Griggs Street to Babcock Street was 6.2 minutes; the published schedule’s median was 6.2 minutes.

Based on 3,437 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 6.2 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 8.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Griggs Street to Babcock Street times by daypart

Morning rush produced the fastest median for Griggs Street to Babcock Street; Midday produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

5.8 min 685 trips · 92% on pace

Midday

6.2 min 885 trips · 89% on pace

Evening rush

6.2 min 673 trips · 94% on pace

Off-peak

5.8 min 1,194 trips · 90% on pace

MEASUREMENT SAMPLE

How Griggs Street to Babcock Street was measured

The Griggs Street to Babcock Street 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 →