{
  "$id": "https://schema.nfh.global/Interchange/v2.0",
  "x-iri": "https://schema.nfh.global/Interchange/v2.0",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Interchange",
  "type": "object",
  "description": "A planned transfer connection point where passengers switch between two or more transport services, with defined timing constraints.",
  "properties": {
    "minTransferTime": {
      "description": "Minimum required transfer time in seconds",
      "type": "number"
    },
    "transferType": {
      "description": "Type of interchange (e.g. TIMED, GUARANTEED, IN_SEAT)",
      "type": "string"
    },
    "fromStopId": {
      "description": "The stop passengers transfer from",
      "$ref": "https://schema.nfh.global/Stop/v2.0/schema.json"
    },
    "toStopId": {
      "description": "The stop passengers transfer to",
      "$ref": "https://schema.nfh.global/Stop/v2.0/schema.json"
    },
    "fromTripId": {
      "description": "The vehicle journey passengers transfer from",
      "$ref": "https://schema.nfh.global/VehicleJourney/v2.0/schema.json"
    },
    "toTripId": {
      "description": "The vehicle journey passengers transfer to",
      "$ref": "https://schema.nfh.global/VehicleJourney/v2.0/schema.json"
    },
    "stopId": {
      "description": "Unique identifier for the stop",
      "type": "string"
    },
    "stopCode": {
      "description": "Short public-facing code for the stop",
      "type": "string"
    },
    "stopName": {
      "description": "Human-readable name of the stop",
      "type": "string"
    },
    "locationType": {
      "description": "Classification of location (0=stop, 1=station, 2=entrance, 3=generic_node, 4=boarding_area)",
      "type": "string"
    },
    "parentStation": {
      "description": "Reference to the parent station if this is a platform",
      "$ref": "https://schema.nfh.global/Station/v2.0/schema.json"
    },
    "wheelchairBoarding": {
      "description": "Wheelchair accessibility (0=no info, 1=accessible, 2=not accessible)",
      "type": "string"
    }
  },
  "additionalProperties": false,
  "x-tags": [
    "mobility",
    "ride-hailing"
  ]
}