STATION REPORT · CAMBRIDGE
Porter
Red Line
Across 30 service days, Porter recorded a 83/100 reliability score, a 5.1-minute typical train gap, and 16.1% long gaps from 12,590 station observations in the official dataset.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Rolling operational summary
83/100Mostly steady
Station score83/100Mostly steady
Typical gap5.1 minbetween observed trains
Long gaps16.1%over 1.5× schedule
Observations12,590station stop records
DIRECT JOURNEYS
Direct trips measured from Porter
TransitMeter publishes 21 direct destination measurements from Porter; waiting and transfer time are excluded.
Times below cover rides completed on one train.
To Kendall/MIT8.2 min6,286 tripsTo Central5.8 min6,285 tripsTo Charles/MGH10 min6,283 tripsTo Park Street12 min6,283 tripsTo Broadway18 min6,280 tripsTo Andrew20 min6,280 tripsTo JFK/UMass23 min6,277 tripsTo Harvard2.2 min6,275 tripsTo South Station16 min6,272 tripsTo Alewife5.8 min6,266 tripsTo Downtown Crossing14 min6,254 tripsTo Davis1.8 min6,214 tripsTo Fields Corner28 min3,139 tripsTo Savin Hill25 min3,138 tripsTo Shawmut30 min3,137 tripsTo North Quincy29 min3,135 tripsTo Wollaston31 min3,135 tripsTo Quincy Center34 min3,135 tripsTo Quincy Adams37 min3,132 tripsTo Ashmont33 min3,131 tripsTo Braintree42 min3,128 trips
STATION SIGNAL
What the Porter score means
Porter scored 83/100 (Mostly steady) from 12,590 observations, with a 5.1-minute median gap and 16.1% long gaps.
It is a rolling operational summary, not a real-time service alert.
See the formula and limits →