← Compositions

Wednesday, August 12, 2026

peak-127rough-daylong-gap
Day health

46.9

100 = every line running clean

Arrivals recorded

33,170

233 distinct trains

Peak trains at once

127

8:15 AM

Worst gap

225 min

Red · Braintree · 2:17 PM

The Score

open SVG
String-line diagram of every MBTA subway train on Wednesday, August 12, 2026

Time runs left to right across the service day (4 AM → 3 AM). Each panel is one line, top to bottom along the route. Every diagonal is a single train: steep is fast, flat is stopped, a cluster is bunching, and blank space is the wait you remember.

Trains in service

Line by line

Redstrained

median 7m · p90 15m

6,358 arrivals · 26 trains

Orangehealthy

median 5m · p90 9m

8,180 arrivals · 22 trains

Bluestrained

median 5m · p90 11m

4,282 arrivals · 18 trains

Green-Brough

median 1m · p90 14m

4,975 arrivals · 18 trains

Green-Cstrained

median 7m · p90 19m

14 arrivals · 2 trains

Green-Dstrained

median 8m · p90 18m

4,978 arrivals · 47 trains

Green-Estrained

median 6m · p90 14m

2,904 arrivals · 31 trains

Mattapanrough

median 7m · p90 26m

1,479 arrivals · 5 trains

First light

The first recorded arrival on each line — the day starting without you.

  • 5:17:33 AMAlewife
  • 5:22:43 AMForest Hills
  • 5:02:10 AMBowdoin
  • 5:21:17 AMBoston College
  • 10:47:09 AMCleveland Circle
  • 5:23:37 AMRiverside
  • 5:27:59 AMNorth Station
  • 5:30:04 AMMilton

Last call

The last recorded arrival on each line. After this, the tunnels go quiet.

  • 1:20:54 AMAlewife
  • 1:35:37 AMMalden Center
  • 1:11:06 AMWonderland
  • 2:59:51 AMBoston College
  • 1:13:53 PMCleveland Circle
  • 2:02:20 AMRiverside
  • 1:41:36 AMMedford/Tufts
  • 1:37:19 AMMattapan

The wait you remember

225 minutes of nothing on the Red at Braintree, starting 2:17 PM.

Rendered 3:40:03 AM ET · 1-minute resolution · mbta.cold.fyi