OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

AshmonttoPorter

Red Line

A direct MBTA train from Ashmont to Porter took a median 32 minutes across 3,070 observed trips; 90% of measured rides finished within approximately 38 minutes.

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

Typical32 min50th percentile
Slower trip38 min90th percentile
Scheduled32 minmedian timetable
On pace65%within 2 min of schedule

THE SHORT ANSWER

How long does Ashmont to Porter take?

The median completed ride from Ashmont to Porter was 32 minutes; the published schedule’s median was 32 minutes.

Based on 3,070 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 32 minutes. That was within 0 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 38 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Ashmont to Porter times by daypart

Off-peak produced the fastest median for Ashmont to Porter; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

33 min 709 trips · 65% on pace

Midday

33 min 667 trips · 62% on pace

Evening rush

33 min 679 trips · 67% on pace

Off-peak

31 min 1,015 trips · 66% on pace

MEASUREMENT SAMPLE

How Ashmont to Porter was measured

The Ashmont to Porter estimate uses 3,070 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 →