OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

PortertoDavis

Red Line

A direct MBTA train from Porter to Davis took a median 1.8 minutes across 6,214 observed trips; 90% of measured rides finished within approximately 2.2 minutes.

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

Typical1.8 min50th percentile
Slower trip2.2 min90th percentile
Scheduled2.2 minmedian timetable
On pace98%within 2 min of schedule

THE SHORT ANSWER

How long does Porter to Davis take?

The median completed ride from Porter to Davis was 1.8 minutes; the published schedule’s median was 2.2 minutes.

Based on 6,214 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 1.8 minutes. That was within 0.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 2.2 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Porter to Davis times by daypart

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

Differences can change as the rolling dataset updates.

Morning rush

1.8 min 1,420 trips · 99% on pace

Midday

1.8 min 1,311 trips · 98% on pace

Evening rush

1.8 min 1,310 trips · 98% on pace

Off-peak

1.8 min 2,173 trips · 98% on pace

MEASUREMENT SAMPLE

How Porter to Davis was measured

The Porter to Davis estimate uses 6,214 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 →