OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Cedar GrovetoMattapan

Mattapan Line

A direct MBTA train from Cedar Grove to Mattapan took a median 7.8 minutes across 3,310 observed trips; 90% of measured rides finished within approximately 8.8 minutes.

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

Typical7.8 min50th percentile
Slower trip8.8 min90th percentile
Scheduled9.2 minmedian timetable
On pace100%within 2 min of schedule

THE SHORT ANSWER

How long does Cedar Grove to Mattapan take?

The median completed ride from Cedar Grove to Mattapan was 7.8 minutes; the published schedule’s median was 9.2 minutes.

Based on 3,310 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 7.8 minutes. That was within 1.5 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 8.8 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Cedar Grove to Mattapan times by daypart

Evening rush produced the fastest median for Cedar Grove to Mattapan; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

7.8 min 708 trips · 99% on pace

Midday

7.8 min 850 trips · 100% on pace

Evening rush

7.8 min 813 trips · 100% on pace

Off-peak

7.8 min 939 trips · 100% on pace

MEASUREMENT SAMPLE

How Cedar Grove to Mattapan was measured

The Cedar Grove to Mattapan estimate uses 3,310 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 →