Feature: Realtime System Performance

[stephenyeargin]

Concept here is to have an "at a glance" look at how routes/trips are going compared to their static schedule.

Overall Summary

• Average Route Delta - Calculate stop sequence minutes +/- for all trips on a route, then average all routes
• Average Trip Delta - Calculate stop sequence minutes +/- for all trips and report as a whole

Route Performance

• Group current trips by route, show average overall +/- minutes for given route alongside individual trips below it

Visualization Ideas

Show a scale with 0 in the middle and 60 minutes (early/late) at the two extremes.

Tasks

• /realtime/trip_updates is the extent of data we will have available, supplemented by the corresponding static schedule.
• Look at creating new API endpoint to see if it would be more efficient to handle calculations server-side.
• If client-side, progressively build report to avoid long wait for data before showing top-line summary.

Out of Scope

This is meant to be a "moment in time" look. No historical data is preserved for now.