What it looks like on the ground
The same mechanism, proved inside two real operations.
Most service still runs on a calendar. These pieces make the case, one at a time, that it should run on demand instead. Read them in order for the full case, or start wherever your problem starts.
If you read only two, read these. One says what the category is. The other says how large it is.

On-Demand Service replaces the schedule with the condition of the point itself.

The category travels with the behavior, not the business.

Every schedule is wrong twice. It over-serves and under-serves at the same time.

The schedule outlived the problem it was built to solve

A better route cannot fix a stop that never should have happened.

A schedule stops listening the moment it is written.

The labor didn’t get slow. The schedule was spending it wrong.

They aren’t buying software. They’re buying covered service with less crew.

They aren’t buying audit trails. They’re buying the event that never happens.

The most expensive trip is the one that bought nothing but its own cost.

The most expensive trip is the one that bought nothing but its own cost.

Restroom demand follows people, not dates. The calendar was always guessing.