OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

ArlingtontoBack of the Hill

Green Line

A direct MBTA train from Arlington to Back of the Hill took a median 22 minutes across 3,530 observed trips; 90% of measured rides finished within approximately 26 minutes.

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

Typical22 min50th percentile
Slower trip26 min90th percentile
Scheduled22 minmedian timetable
On pace82%within 2 min of schedule

THE SHORT ANSWER

How long does Arlington to Back of the Hill take?

The median completed ride from Arlington to Back of the Hill was 22 minutes; the published schedule’s median was 22 minutes.

Based on 3,530 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 22 minutes. That was within 0.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 26 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Arlington to Back of the Hill times by daypart

Morning rush produced the fastest median for Arlington to Back of the Hill; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

21 min 753 trips · 87% on pace

Midday

22 min 850 trips · 80% on pace

Evening rush

23 min 705 trips · 81% on pace

Off-peak

21 min 1,222 trips · 82% on pace

MEASUREMENT SAMPLE

How Arlington to Back of the Hill was measured

The Arlington to Back of the Hill estimate uses 3,530 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 →