OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Quincy AdamstoAlewife

Red Line

A direct MBTA train from Quincy Adams to Alewife took a median 44 minutes across 3,112 observed trips; 90% of measured rides finished within approximately 51 minutes.

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

Typical44 min50th percentile
Slower trip51 min90th percentile
Scheduled44 minmedian timetable
On pace63%within 2 min of schedule

THE SHORT ANSWER

How long does Quincy Adams to Alewife take?

The median completed ride from Quincy Adams to Alewife was 44 minutes; the published schedule’s median was 44 minutes.

Based on 3,112 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 44 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 51 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Quincy Adams to Alewife times by daypart

Off-peak produced the fastest median for Quincy Adams to Alewife; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

45 min 716 trips · 70% on pace

Midday

45 min 618 trips · 60% on pace

Evening rush

46 min 679 trips · 58% on pace

Off-peak

43 min 1,099 trips · 62% on pace

MEASUREMENT SAMPLE

How Quincy Adams to Alewife was measured

The Quincy Adams to Alewife estimate uses 3,112 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 →