GTFS Express Open GTFS Express

missing_pickup_or_drop_off_window: GTFS validation rule (stop_times.txt) Error

A Flex stop_times row referencing a location_id or location_group_id is missing start_pickup_drop_off_window or end_pickup_drop_off_window.

Updated on 23 October 2026

What the rule checks

A Flex stop_times row referencing a location_id or location_group_id is missing start_pickup_drop_off_window or end_pickup_drop_off_window.

Severity: error

An error marks data that breaks the GTFS specification. A journey planner or a rider app may refuse the file, or show a wrong version of it. Correct it before publishing the GTFS.

Where it applies

The rule applies to stop_times.txt. This file gives, for each trip, its stops in order with their times.

Finding and correcting it

Open the GTFS in GTFS Express. Reading is free, and the validation, by the MobilityData validator and the rules of GTFS Express itself, lists the occurrences of missing_pickup_or_drop_off_window with the file and rows involved. The correction is made in a draft, by hand or from a brief, with the licence: the corrected GTFS is validated again before it is delivered, and the change can be undone.

In the MobilityData validator

The MobilityData GTFS validator uses the same code, missing_pickup_or_drop_off_window. Its documentation describes each rule: MobilityData validator rules.

Rules of the same domain