OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Griggs StreettoWashington Street

Green Line

A direct MBTA train from Griggs Street to Washington Street took a median 4.2 minutes across 3,437 observed trips; 90% of measured rides finished within approximately 5.2 minutes.

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

Typical4.2 min50th percentile
Slower trip5.2 min90th percentile
Scheduled5.2 minmedian timetable
On pace99%within 2 min of schedule

THE SHORT ANSWER

How long does Griggs Street to Washington Street take?

The median completed ride from Griggs Street to Washington Street was 4.2 minutes; the published schedule’s median was 5.2 minutes.

Based on 3,437 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 4.2 minutes. That was within 1 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 5.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Griggs Street to Washington Street times by daypart

Evening rush produced the fastest median for Griggs Street to Washington Street; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

4.2 min 603 trips · 98% on pace

Midday

4.2 min 895 trips · 99% on pace

Evening rush

4.2 min 666 trips · 99% on pace

Off-peak

4.8 min 1,273 trips · 99% on pace

MEASUREMENT SAMPLE

How Griggs Street to Washington Street was measured

The Griggs Street to Washington 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 →