@openstreetmap/id-tagging-schema/data/presets/railway/milestone.json

The OpenStreetMap tagging model used by the iD editor

{
    "icon": "temaki-milestone",
    "geometry": [
        "point",
        "vertex"
    ],
    "fields": [
        "railway/position",
        "direction_vertex"
    ],
    "moreFields": [
        "ref"
    ],
    "tags": {
        "railway": "milestone"
    },
    "terms": [
        "milestone",
        "marker"
    ],
    "name": "Railway Milestone"
}