OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Blandford StreettoGriggs Street

Green Line

A direct MBTA train from Blandford Street to Griggs Street took a median 14 minutes across 3,412 observed trips; 90% of measured rides finished within approximately 17 minutes.

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

Typical14 min50th percentile
Slower trip17 min90th percentile
Scheduled16 minmedian timetable
On pace92%within 2 min of schedule

THE SHORT ANSWER

How long does Blandford Street to Griggs Street take?

The median completed ride from Blandford Street to Griggs Street was 14 minutes; the published schedule’s median was 16 minutes.

Based on 3,412 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 14 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 17 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Blandford Street to Griggs Street times by daypart

Morning rush produced the fastest median for Blandford Street to Griggs Street; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

13 min 630 trips · 97% on pace

Midday

15 min 924 trips · 92% on pace

Evening rush

15 min 619 trips · 87% on pace

Off-peak

14 min 1,239 trips · 93% on pace

MEASUREMENT SAMPLE

How Blandford Street to Griggs Street was measured

The Blandford Street to Griggs Street estimate uses 3,412 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 →