Trackside
Train 8421 South Station to Greenbush
unofficial updated nightly logging since Aug 2026 How this is measured →
On time 75%
Scheduled arrival 10:17 PM
- Usually on time
- On time (within 2 min) 75% of weekdays
- Late 5+ min 16% of weekdays
- Late 10+ min 0% of weekdays
- About 1 day in 10, it's 5+ min late
- On time ≤2 min
- Close to schedule 2–5 min
- Late 5–10 min
- Very late 10+ min
Departs South Station
Departs 9:20 PM
Based on 5 recorded weekdays — early data.
Usually on time
Show all stops
Quincy Center
Scheduled arrival 9:35 PM
On time 100%
· usually on time
Weymouth Landing/East Braintree
Scheduled arrival 9:44 PM
On time 92%
· usually on time
East Weymouth
Scheduled arrival 9:49 PM
On time 58%
· usually on time
West Hingham
Scheduled arrival 9:52 PM
On time 75%
· usually on time
Nantasket Junction
Scheduled arrival 9:56 PM
On time 50%
· usually on time
Cohasset
Scheduled arrival 9:59 PM
On time 33%
· usually 2 min late
North Scituate
Scheduled arrival 10:06 PM
On time 0%
· usually 5 min late
Where delay builds
Typical delay along the route across weekdays.
Recent performance
How late it arrived on each recent day it ran.
See something wrong? Tell us.