OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Government CentertoBall Square

Green Line

A direct MBTA train from Government Center to Ball Square took a median 18 minutes across 3,558 observed trips; 90% of measured rides finished within approximately 21 minutes.

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

Typical18 min50th percentile
Slower trip21 min90th percentile
Scheduled20 minmedian timetable
On pace94%within 2 min of schedule

THE SHORT ANSWER

How long does Government Center to Ball Square take?

The median completed ride from Government Center to Ball Square was 18 minutes; the published schedule’s median was 20 minutes.

Based on 3,558 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 18 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 21 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Government Center to Ball Square times by daypart

Off-peak produced the fastest median for Government Center to Ball Square; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

18 min 619 trips · 95% on pace

Midday

18 min 889 trips · 95% on pace

Evening rush

19 min 665 trips · 91% on pace

Off-peak

18 min 1,385 trips · 95% on pace

MEASUREMENT SAMPLE

How Government Center to Ball Square was measured

The Government Center to Ball Square estimate uses 3,558 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 →