Wednesday, September 2, 2026

peak-156rough-daylong-gap

Day health

100 = every line running clean

Arrivals recorded

47,244

326 distinct trains

Peak trains at once

156

5:35 PM

Worst gap

237 min

Green-D · Riverside · 11:30 AM

The Score

open SVG

String-line diagram of every MBTA subway train on Wednesday, September 2, 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 6m · p90 14m

6,760 arrivals · 25 trains

Orangehealthy

median 5m · p90 9m

7,938 arrivals · 24 trains

Bluehealthy

median 6m · p90 11m

4,329 arrivals · 18 trains

Green-Bstrained

median 7m · p90 15m

7,901 arrivals · 32 trains

Green-Chealthy

median 9m · p90 17m

4,521 arrivals · 43 trains

Green-Dstrained

median 8m · p90 16m

6,916 arrivals · 83 trains

Green-Estrained

median 7m · p90 15m

7,306 arrivals · 46 trains

Mattapanrough

median 7m · p90 26m

1,573 arrivals · 5 trains

First light

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

4:50:27 AMAshmont
5:04:51 AMOak Grove
4:57:17 AMOrient Heights
4:00:01 AMBoston College
4:37:16 AMCleveland Circle
4:46:21 AMWoodland
4:47:35 AMEast Somerville
5:02:11 AMValley Road

Last call

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

1:14:12 AMAlewife
1:04:38 AMForest Hills
1:11:45 AMWonderland
2:59:55 AMBoston College
1:17:44 AMCleveland Circle
1:52:08 AMRiverside
1:28:51 AMEast Somerville
1:38:06 AMMattapan

The wait you remember

237 minutes of nothing on the Green-D at Riverside, starting 11:30 AM.

Rendered 3:40:11 AM ET · 1-minute resolution · mbta.cold.fyi