STATION REPORT · SOMERVILLE
Union Square
Green Line
Across 30 service days, Union Square recorded a 86/100 reliability score, a 9.8-minute typical train gap, and 15.4% long gaps from 7,682 station observations in the official dataset.
Source: MBTA Performance Data · 2026-08-20 to 2026-09-18 · Rolling operational summary
86/100Steady
Station score86/100Steady
Typical gap9.8 minbetween observed trains
Long gaps15.4%over 1.5× schedule
Observations7,682station stop records
DIRECT JOURNEYS
Direct trips measured from Union Square
TransitMeter publishes 24 direct destination measurements from Union Square; waiting and transfer time are excluded.
Times below cover rides completed on one train.
To Lechmere3.8 min3,264 tripsTo Science Park/West End5.8 min3,219 tripsTo North Station9.2 min3,210 tripsTo Haymarket12 min3,195 tripsTo Government Center14 min3,179 tripsTo Arlington22 min3,176 tripsTo Boylston20 min3,172 tripsTo Copley24 min3,172 tripsTo Park Street17 min3,161 tripsTo Hynes Convention Center27 min3,142 tripsTo Brookline Village38 min3,140 tripsTo Kenmore30 min3,138 tripsTo Beaconsfield43 min3,136 tripsTo Reservoir46 min3,133 tripsTo Brookline Hills40 min3,131 tripsTo Longwood36 min3,129 tripsTo Fenway33 min3,125 tripsTo Newton Centre52 min3,113 tripsTo Woodland61 min3,111 tripsTo Chestnut Hill49 min3,108 tripsTo Newton Highlands54 min3,107 tripsTo Eliot56 min3,105 tripsTo Waban58 min3,101 tripsTo Riverside64 min3,096 trips
STATION SIGNAL
What the Union Square score means
Union Square scored 86/100 (Steady) from 7,682 observations, with a 9.8-minute median gap and 15.4% long gaps.
It is a rolling operational summary, not a real-time service alert.
See the formula and limits →