@openstreetmap/id-tagging-schema/data/fields/deflection.json

The OpenStreetMap tagging model used by the iD editor

{
    "key": "deflection",
    "type": "number",
    "label": "Angle",
    "increment": 5,
    "prerequisiteTag": {
        "key": "cycle_barrier",
        "value": "diagonal"
    }
}