Morning rush
23 min 741 trips · 72% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Ball SquaretoPark Street
Green Line
A direct MBTA train from Ball Square to Park Street took a median 22 minutes across 3,529 observed trips; 90% of measured rides finished within approximately 27 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical22 min50th percentile
Slower trip27 min90th percentile
Scheduled22 minmedian timetable
On pace73%within 2 min of schedule
THE SHORT ANSWER
How long does Ball Square to Park Street take?
The median completed ride from Ball Square to Park Street was 22 minutes; the published schedule’s median was 22 minutes.
Based on 3,529 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 22 minutes. That was within 0 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 27 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Ball Square to Park Street times by daypart
Off-peak produced the fastest median for Ball Square to Park Street; Morning rush produced the slowest.
Differences can change as the rolling dataset updates.
Midday
22 min 883 trips · 75% on paceEvening rush
23 min 693 trips · 65% on paceOff-peak
21 min 1,212 trips · 75% on paceMEASUREMENT SAMPLE
How Ball Square to Park Street was measured
The Ball Square to Park Street estimate uses 3,529 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 →MORE FROM Ball Square
Trips related to Ball Square to Park Street
The Ball Square to Park Street record is accompanied by 6 other measured direct rides beginning at Ball Square, each with a published median duration.