Key:gtfs:shape_id
 gtfs:shape_id
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| Description |
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The exact value of the shape_id column in a GTFS feed. 
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| Group: public transport |
| Used on these elements |
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| Useful combination |
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One of: |
| See also |
Status: approved
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| Tools for this tag |
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The key gtfs:shape_id=* is used in public transportation tagging to add the shape_id from the GTFS shapes.txt file or trips.txt file to a PTv2 type=route relation.
gtfs:shape_id=* is the preferred GTFS id tag for a PTv2 route relation as it directly corresponds with the tagging system. If there is no shape file and no shape_id in the trips.txt file, gtfs:trip_id:sample=* or gtfs:trip_id=* are the alternative solutions.
The key is used to find the corresponding shape in a GTFS feed. For this the feed needs to be specified using a feed code suffix (see List of GTFS feeds). For a longer explanation on how to reference a GTFS feed, look at GTFS.
Example
Look at the route Bus 10: Ringlijn Nijmegen Centraal Station => Universiteit HAN. It is a 
route so we can find the corresponding trips in trips.txt
Below is an excerpt of that table.
| route_id | service_id | trip_id | trip_headsign | trip_short_name | trip_long_name | direction_id | shape_id | ... |
|---|---|---|---|---|---|---|---|---|
| 87987 | 457 | 177374763 | Heyendaal | 79 | 0 | 1127909 | ||
| 87987 | 457 | 177374758 | Heyendaal | 69 | 0 | 1127909 | ||
| 87987 | 457 | 177374753 | Heyendaal | 59 | 0 | 1127909 |
We can refer to the shape of these trips using gtfs:shape_id:NL-OVApi=1127909 since this particular feed has different trip id's between feed versions.
PTNA
PTNA represents gtfs:shape_id=* on its pages about GTFS trips and in the network analysis (overview) under the tags summary.
It is evaluated by PTNA to link from the analysis to the GTFS data if additionally gtfs:feed=*, operator:guid=* or network:guid=* (in this order) is present (example).
Adding the gtfs:route_id=* does not harm but is not needed as it is derivable from gtfs:shape_id=*