Estimated: gaps and run times come from live predictions against the timetable, not from seeing each train.

衡量的内容

How the O-Train is running: how many trips were predicted or cancelled, how far apart trains are, and how long the run takes.

• 已测量We saw it happen.
• 预计Modelled, shown with a range.
• ExplainedHow it is worked out, in words.

数据来源

• 预计Live O-Train predictions
• Explained已发布的时刻表，注明日期
• ExplainedAnnounced slow orders

我们如何计算

1. We count the trips the live feed predicts and the ones it marks cancelled.
2. We compare the gap between predicted trains with the gap the timetable promises.
3. We compare the predicted run time with the timetable’s run time.
4. Announced slow orders are listed as the operator published them. We do not infer them.

Worked example

我们有多大把握

Counts of predicted and cancelled trips are what the feed says. Gaps and run times are estimates, because a prediction is not a sighting.

Limits, and what would change it

• A prediction can change before the train arrives.
• A train missing from the feed can make a gap look longer than it was.
• It says what is predicted now, not how the day will end.