Thursday, August 27, 2026

peak-149rough-daylong-gap

Day health

70.6

100 = every line running clean

Arrivals recorded

41,071

365 distinct trains

Peak trains at once

149

5:00 PM

Worst gap

231 min

Green-B · Park Street · 5:55 PM

The Score

open SVG

String-line diagram of every MBTA subway train on Thursday, August 27, 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

6,955 arrivals · 29 trains

Orangehealthy

median 5m · p90 10m

3,085 arrivals · 7 trains

Bluestrained

median 5m · p90 11m

4,475 arrivals · 18 trains

Green-Bhealthy

median 9m · p90 17m

6,672 arrivals · 67 trains

Green-Chealthy

median 9m · p90 18m

4,584 arrivals · 38 trains

Green-Dhealthy

median 9m · p90 17m

6,412 arrivals · 103 trains

Green-Estrained

median 7m · p90 15m

7,337 arrivals · 43 trains

Mattapanrough

median 8m · p90 26m

1,551 arrivals · 5 trains

First light

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

4:37:04 AMAshmont
5:16:22 AMGreen Street
4:29:21 AMOrient Heights
5:03:33 AMBoston College
5:00:08 AMEnglewood Avenue
4:30:32 AMRiverside
4:45:28 AMMagoun Square
5:01:16 AMCapen Street

Last call

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

1:29:13 AMAlewife
1:39:42 AMForest Hills
1:14:53 AMWonderland
2:59:53 AMBoston College
1:22:39 AMDean Road
1:53:20 AMRiverside
1:41:05 AMBall Square
1:39:51 AMMattapan

The wait you remember

231 minutes of nothing on the Green-B at Park Street, starting 5:55 PM.

Rendered 3:40:10 AM ET · 1-minute resolution · mbta.cold.fyi