OBSERVED MBTA TRAVEL TIME · 30 SERVICE DAYS

BoylstontoChiswick Road

Green Line

A direct MBTA train from Boylston to Chiswick Road took a median 35 minutes across 3,343 observed trips; 90% of measured rides finished within approximately 40 minutes.

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

Typical35 min50th percentile
Slower trip40 min90th percentile
Scheduled36 minmedian timetable
On pace78%within 2 min of schedule

THE SHORT ANSWER

How long does Boylston to Chiswick Road take?

The median completed ride from Boylston to Chiswick Road was 35 minutes; the published schedule’s median was 36 minutes.

Based on 3,343 direct trips between 2026-08-20 and 2026-09-18, the median observed ride was 35 minutes. That was within 1 minutes of the published schedule.

Nine out of ten measured trips finished within approximately 40 minutes. These figures describe completed direct trips; they do not include the time spent waiting for the train.

WHEN YOU TRAVEL

Boylston to Chiswick Road times by daypart

Morning rush produced the fastest median for Boylston to Chiswick Road; Evening rush produced the slowest.

Differences can change as the rolling dataset updates.

Morning rush

33 min 643 trips · 88% on pace

Midday

36 min 889 trips · 74% on pace

Evening rush

37 min 627 trips · 75% on pace

Off-peak

35 min 1,184 trips · 78% on pace

MEASUREMENT SAMPLE

How Boylston to Chiswick Road was measured

The Boylston to Chiswick Road estimate uses 3,343 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 →