OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

Chestnut HilltoRiverside

Green Line

A direct MBTA train from Chestnut Hill to Riverside took a median 13 minutes across 3,363 observed trips; 90% of measured rides finished within approximately 16 minutes.

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

Typical13 min50th percentile
Slower trip16 min90th percentile
Scheduled15 minmedian timetable
On pace91%within 2 min of schedule

THE SHORT ANSWER

How long does Chestnut Hill to Riverside take?

The median completed ride from Chestnut Hill to Riverside was 13 minutes; the published schedule’s median was 15 minutes.

Based on 3,363 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 13 minutes. That was within 2 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 16 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Chestnut Hill to Riverside times by daypart

Midday produced the fastest median for Chestnut Hill to Riverside; Off-peak produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

13 min 511 trips · 94% on pace

Midday

13 min 846 trips · 91% on pace

Evening rush

14 min 742 trips · 92% on pace

Off-peak

14 min 1,264 trips · 89% on pace

MEASUREMENT SAMPLE

How Chestnut Hill to Riverside was measured

The Chestnut Hill to Riverside estimate uses 3,363 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 →