Bay Area 511 AC Transit Schedule#
GTFS Stop Time Updates Bay Area 511 AC Transit Schedule Summary#
Generally, we want better transit user experience. Specifically, the performance metrics we can derive from GTFS RT Trip Updates distills into the following objectives:
Increase prediction reliability and accuracy
Increase the availability and completeness of GTFS RT
Decrease the inconsistency and fluctuations of predictions
| Bay Area 511 AC Transit Schedule | ||||||||||
| service_date | # Stop Time Update Messages | % Minutes with 2+ Stop Time Update Message | % Minutes with Accurate Predictions | Prediction Spread / Wobble (minutes) | Avg Stop Time Updates per Minute | % Scheduled Trips with Trip Updates | Bus Catch Likelihood (early + ontime predictions) | Prediction Padding (minutes added to avoid missing bus) | Prediction Error IQR (75th - 25th percentile) (minutes) | Prediction Error 50th percentile (minutes) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-06-01 | 51,466,536 | 98.8% | 80.7% | 0.2 | 3.0 | 100.0% | 65.0% | 4.4 | 2.0 | 0.5 |
| 2025-06-02 | 64,167,732 | 98.8% | 78.6% | 0.2 | 3.0 | 100.0% | 70.0% | 4.9 | 2.1 | 0.7 |
| 2025-06-03 | 64,823,394 | 98.8% | 76.6% | 0.2 | 3.0 | 100.0% | 73.0% | 5.3 | 2.2 | 0.8 |
| 2025-06-04 | 65,006,802 | 98.8% | 77.3% | 0.2 | 3.0 | 100.0% | 73.0% | 5.2 | 2.2 | 0.8 |
| 2025-06-05 | 65,142,174 | 98.8% | 76.9% | 0.2 | 3.0 | 100.0% | 73.0% | 5.2 | 2.2 | 0.8 |
| 2025-06-06 | 65,069,220 | 98.8% | 76.5% | 0.2 | 3.0 | 99.0% | 72.0% | 5.2 | 2.3 | 0.8 |
| 2025-06-07 | 52,105,011 | 98.8% | 78.5% | 0.2 | 3.0 | 99.0% | 62.0% | 4.6 | 2.2 | 0.4 |
| 2025-06-08 | 51,666,369 | 98.8% | 81.2% | 0.1 | 3.0 | 99.0% | 63.0% | 4.3 | 2.0 | 0.4 |
| 2025-06-09 | 63,698,526 | 98.8% | 80.0% | 0.1 | 3.0 | 98.0% | 71.0% | 4.7 | 2.0 | 0.7 |
| 2025-06-10 | 65,411,448 | 98.8% | 79.3% | 0.1 | 3.0 | 100.0% | 72.0% | 4.9 | 2.1 | 0.8 |
| 2025-06-11 | 65,210,868 | 98.8% | 78.9% | 0.1 | 3.0 | 100.0% | 72.0% | 4.9 | 2.1 | 0.8 |
| 2025-06-12 | 62,047,764 | 98.2% | 77.8% | 0.2 | 2.9 | 99.0% | 72.0% | 5.0 | 2.2 | 0.8 |
| 2025-06-15 | 29,646,714 | 98.7% | 78.5% | 0.1 | 3.0 | 95.0% | 68.0% | 4.9 | 2.2 | 0.6 |