OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Heath StreettoLongwood Medical Area

Green Line

A direct MBTA train from Heath Street to Longwood Medical Area took a median 9.2 minutes across 3,374 observed trips; 90% of measured rides finished within approximately 12 minutes.

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

Typical9.2 min50th percentile
Slower trip12 min90th percentile
Scheduled9.2 minmedian timetable
On pace78%within 2 min of schedule

THE SHORT ANSWER

How long does Heath Street to Longwood Medical Area take?

The median completed ride from Heath Street to Longwood Medical Area was 9.2 minutes; the published schedule’s median was 9.2 minutes.

Based on 3,374 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 9.2 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 12 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Heath Street to Longwood Medical Area times by daypart

Off-peak produced the fastest median for Heath Street to Longwood Medical Area; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

9.8 min 640 trips · 79% on pace

Midday

9.8 min 820 trips · 81% on pace

Evening rush

10 min 649 trips · 67% on pace

Off-peak

8.2 min 1,265 trips · 82% on pace

MEASUREMENT SAMPLE

How Heath Street to Longwood Medical Area was measured

The Heath Street to Longwood Medical Area estimate uses 3,374 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 →