OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

AlewifetoAshmont

Red Line

A direct MBTA train from Alewife to Ashmont took a median 37 minutes across 3,120 observed trips; 90% of measured rides finished within approximately 42 minutes.

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

Typical37 min50th percentile
Slower trip42 min90th percentile
Scheduled37 minmedian timetable
On pace68%within 2 min of schedule

THE SHORT ANSWER

How long does Alewife to Ashmont take?

The median completed ride from Alewife to Ashmont was 37 minutes; the published schedule’s median was 37 minutes.

Based on 3,120 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 37 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 42 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Alewife to Ashmont times by daypart

Off-peak produced the fastest median for Alewife to Ashmont; Midday produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

37 min 639 trips · 69% on pace

Midday

38 min 847 trips · 64% on pace

Evening rush

38 min 669 trips · 70% on pace

Off-peak

36 min 965 trips · 70% on pace

MEASUREMENT SAMPLE

How Alewife to Ashmont was measured

The Alewife to Ashmont estimate uses 3,120 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 →