CTA 'L' · Sat Oct 10
Blue Line
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Not graded yet80.7% of trains ran · 2.3 min extra wait · 2.6% bunchedA system gets its first grade after 7 full days of data. 0 of 7 so far, so the first grade is expected Sun Oct 18. How the grade works284 trips scheduled this week · 103 runs seen · 14.6% flagged delayed · 1 service alert
Report card
When and where this line fell short this week, and what CTA said about it. Compare cities on the report card.
- Weakest time of day
- Late night74.1% of trains ran
- Worst station
- RacineBlue Line, 78.0% ran
- What the agency blamed
- No cause given1 of 1 alert
- Unexplained misses
- 75%of 608 missing station stops had no alert posted
| Time of day | Scheduled stops | Ran | Share |
|---|---|---|---|
| Evening rush | 262 | 216 | 82.4% |
| Evening | 2,035 | 1,693 | 83.2% |
| Late night | 848 | 628 | 74.1% |
Trains per hour
Scheduled trains against trains seen at Harlem (Blue - Forest Park Branch), the line's busiest station, both directions.
ScheduledSeen
Sat Oct 10 · at Harlem (Blue - Forest Park Branch)
Worst moments
The longest waits and closest bunches this week. Each one opens the record Train Tracker gave at the time.
Long waitUIC-Halsted toward O'HareSat Oct 10, 11:18 pm · scheduled every 9 min37 minLong waitRacine toward Forest ParkSat Oct 10, 11:17 pm · scheduled every 10 min38 minLong waitClinton (Blue) toward Forest ParkSat Oct 10, 11:21 pm · scheduled every 10 min38 minBunchedCumberland toward Forest ParkSat Oct 10, 12:17 am · scheduled every 10 minsame minuteBunchedClark/Lake toward O'HareSat Oct 10, 9:34 pm · scheduled every 9 minsame minute
Day by day
| Day | Grade | Score | Ran | Extra wait | Bunched | Flagged delayed | Alerts | Coverage |
|---|---|---|---|---|---|---|---|---|
| Sat Oct 10 | – | – | 80.7% | 2.3 min | 2.6% | 14.6% | 1 | 36.0% |
Service alerts
| Posted | Alert | Impact |
|---|---|---|
| Sat Oct 10, 11:02 pm | Blue Line Service Delayed at UIC Halsted | Major Delays |