Morning rush
5.8 min 745 trips · 99% on paceOBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS
Oak GrovetoAssembly
Orange Line
A direct MBTA train from Oak Grove to Assembly took a median 5.8 minutes across 3,428 observed trips; 90% of measured rides finished within approximately 6.8 minutes.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Completed direct trips only
Typical5.8 min50th percentile
Slower trip6.8 min90th percentile
Scheduled6.2 minmedian timetable
On pace97%within 2 min of schedule
THE SHORT ANSWER
How long does Oak Grove to Assembly take?
The median completed ride from Oak Grove to Assembly was 5.8 minutes; the published schedule’s median was 6.2 minutes.
Based on 3,428 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 5.8 minutes. That was within 0.5 minutes of the published schedule.
Nine out of ten measured trips finished within approximately 6.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.
WHEN YOU TRAVEL
Oak Grove to Assembly times by daypart
Evening rush produced the fastest median for Oak Grove to Assembly; Off-peak produced the slowest.
Differences can change as the rolling dataset updates.
Midday
5.8 min 589 trips · 97% on paceEvening rush
5.8 min 648 trips · 96% on paceOff-peak
5.8 min 1,446 trips · 96% on paceMEASUREMENT SAMPLE
How Oak Grove to Assembly was measured
The Oak Grove to Assembly estimate uses 3,428 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 Oak Grove
Trips related to Oak Grove to Assembly
The Oak Grove to Assembly record is accompanied by 6 other measured direct rides beginning at Oak Grove, each with a published median duration.