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

The OpenStreetMap tagging model used by the iD editor

{
    "icon": "temaki-railway_signals",
    "geometry": [
        "point",
        "vertex"
    ],
    "fields": [
        "railway/position",
        "railway/signal/direction",
        "railway/signal/position",
        "ref"
    ],
    "tags": {
        "railway": "signal"
    },
    "terms": [
        "lights",
        "signal"
    ],
    "name": "Railway Signal"
}