OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Back of the HilltoGilman Square

Green Line

A direct MBTA train from Back of the Hill to Gilman Square took a median 44 minutes across 3,389 observed trips; 90% of measured rides finished within approximately 51 minutes.

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

Typical44 min50th percentile
Slower trip51 min90th percentile
Scheduled46 minmedian timetable
On pace77%within 2 min of schedule

THE SHORT ANSWER

How long does Back of the Hill to Gilman Square take?

The median completed ride from Back of the Hill to Gilman Square was 44 minutes; the published schedule’s median was 46 minutes.

Based on 3,389 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 44 minutes. That was within 2.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 51 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Back of the Hill to Gilman Square times by daypart

Off-peak produced the fastest median for Back of the Hill to Gilman Square; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

43 min 619 trips · 87% on pace

Midday

45 min 844 trips · 76% on pace

Evening rush

48 min 653 trips · 56% on pace

Off-peak

41 min 1,273 trips · 82% on pace

MEASUREMENT SAMPLE

How Back of the Hill to Gilman Square was measured

The Back of the Hill to Gilman Square estimate uses 3,389 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 →