Fix trip_with_shape_dist_traveled_but_no_shape_distances in GTFS

Diagnosis

What this notice means

A trip supplies shape_dist_traveled in stop_times.txt, but its shape lacks distances on some or all points.

Operational effect

Apps cannot reliably locate those stop distances on the route geometry.

Scope

Report field	Type	Meaning
`shapeId`	string	The shape_id referenced by the trip.
`stopTimeCsvRowNumber`	integer	The row number of the first stop_times.txt record for this trip that contains a shape_dist_traveled value. Provided as a representative location; other stop times for the same trip may also carry distance values.
`tripCsvRowNumber`	integer	The row number of the faulty record in trips.txt.
`tripId`	string	The trip_id of the faulty trip.

Repair

1
Find the trip's shape_id and inspect every point in shapes.txt; the report may identify only a representative stop-time row.
2
Populate consistent cumulative distances for all shape points using the same units and origin as the stop times. Recalculate both sides when needed.
3
Check the result
After a repair, rebuild the archive and validate it again. Confirm that the affected records are correct and that no new related notices appeared. A reviewed warning or informational notice may remain when it describes intentional, supported data.

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Sources