OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Back of the HilltoLechmere

Green Line

A direct MBTA train from Back of the Hill to Lechmere took a median 38 minutes across 3,444 observed trips; 90% of measured rides finished within approximately 45 minutes.

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

Typical38 min50th percentile
Slower trip45 min90th percentile
Scheduled40 minmedian timetable
On pace77%within 2 min of schedule

THE SHORT ANSWER

How long does Back of the Hill to Lechmere take?

The median completed ride from Back of the Hill to Lechmere was 38 minutes; the published schedule’s median was 40 minutes.

Based on 3,444 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 38 minutes. That was within 2.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 45 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 Lechmere times by daypart

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

Differences can change as the rolling dataset updates.

Morning rush

37 min 633 trips · 88% on pace

Midday

39 min 860 trips · 76% on pace

Evening rush

42 min 658 trips · 58% on pace

Off-peak

35 min 1,293 trips · 83% on pace

MEASUREMENT SAMPLE

How Back of the Hill to Lechmere was measured

The Back of the Hill to Lechmere estimate uses 3,444 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 →