{
  "definitions": {
    "TripUpdate.StopTimeEvent": {
      "title": "StopTimeEvent",
      "type": "object",
      "properties": {
        "delay": {
          "type": "integer",
          "minimum": -2147483648,
          "maximum": 2147483647
        },
        "time": {
          "type": "integer",
          "minimum": -9007199254740991,
          "maximum": 9007199254740991
        },
        "uncertainty": {
          "type": "integer",
          "minimum": -2147483648,
          "maximum": 2147483647
        }
      }
    },
    "TripDescriptor": {
      "title": "TripDescriptor",
      "type": "object",
      "properties": {
        "trip_id": {
          "type": "string"
        },
        "route_id": {
          "type": "string"
        },
        "direction_id": {
          "type": "integer",
          "minimum": 0,
          "maximum": 4294967295
        },
        "start_time": {
          "type": "string"
        },
        "start_date": {
          "type": "string"
        },
        "schedule_relationship": {
          "title": "ScheduleRelationship",
          "type": "string",
          "enum": [
            "SCHEDULED",
            "ADDED",
            "UNSCHEDULED",
            "CANCELED"
          ]
        }
      }
    },
    "VehicleDescriptor": {
      "title": "VehicleDescriptor",
      "type": "object",
      "properties": {
        "id": {
          "type": "string"
        },
        "label": {
          "type": "string"
        },
        "license_plate": {
          "type": "string"
        }
      }
    },
    "TranslatedString": {
      "title": "TranslatedString",
      "type": "object",
      "properties": {
        "translation": {
          "type": "array",
          "items": {
            "title": "Translation",
            "type": "object",
            "properties": {
              "text": {
                "type": "string"
              },
              "language": {
                "type": "string"
              }
            },
            "required": [
              "text"
            ]
          }
        }
      }
    },
    "FeedMessage": {
      "title": "FeedMessage",
      "type": "object",
      "properties": {
        "header": {
          "$ref": "#/definitions/FeedHeader"
        },
        "entity": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/FeedEntity"
          }
        }
      },
      "required": [
        "header"
      ]
    },
    "FeedHeader": {
      "title": "FeedHeader",
      "type": "object",
      "properties": {
        "gtfs_realtime_version": {
          "type": "string"
        },
        "incrementality": {
          "title": "Incrementality",
          "type": "string",
          "enum": [
            "FULL_DATASET",
            "DIFFERENTIAL"
          ]
        },
        "timestamp": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        }
      },
      "required": [
        "gtfs_realtime_version"
      ]
    },
    "FeedEntity": {
      "title": "FeedEntity",
      "type": "object",
      "properties": {
        "id": {
          "type": "string"
        },
        "is_deleted": {
          "type": "boolean"
        },
        "trip_update": {
          "$ref": "#/definitions/TripUpdate"
        },
        "vehicle": {
          "$ref": "#/definitions/VehiclePosition"
        },
        "alert": {
          "$ref": "#/definitions/Alert"
        }
      },
      "required": [
        "id"
      ]
    },
    "TripUpdate": {
      "title": "TripUpdate",
      "type": "object",
      "properties": {
        "trip": {
          "$ref": "#/definitions/TripDescriptor"
        },
        "vehicle": {
          "$ref": "#/definitions/VehicleDescriptor"
        },
        "stop_time_update": {
          "type": "array",
          "items": {
            "title": "StopTimeUpdate",
            "type": "object",
            "properties": {
              "stop_sequence": {
                "type": "integer",
                "minimum": 0,
                "maximum": 4294967295
              },
              "stop_id": {
                "type": "string"
              },
              "arrival": {
                "$ref": "#/definitions/TripUpdate.StopTimeEvent"
              },
              "departure": {
                "$ref": "#/definitions/TripUpdate.StopTimeEvent"
              },
              "schedule_relationship": {
                "title": "ScheduleRelationship",
                "type": "string",
                "enum": [
                  "SCHEDULED",
                  "SKIPPED",
                  "NO_DATA"
                ]
              }
            }
          }
        },
        "timestamp": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "delay": {
          "type": "integer",
          "minimum": -2147483648,
          "maximum": 2147483647
        }
      },
      "required": [
        "trip"
      ]
    },
    "VehiclePosition": {
      "title": "VehiclePosition",
      "type": "object",
      "properties": {
        "trip": {
          "$ref": "#/definitions/TripDescriptor"
        },
        "vehicle": {
          "$ref": "#/definitions/VehicleDescriptor"
        },
        "position": {
          "$ref": "#/definitions/Position"
        },
        "current_stop_sequence": {
          "type": "integer",
          "minimum": 0,
          "maximum": 4294967295
        },
        "stop_id": {
          "type": "string"
        },
        "current_status": {
          "title": "VehicleStopStatus",
          "type": "string",
          "enum": [
            "INCOMING_AT",
            "STOPPED_AT",
            "IN_TRANSIT_TO"
          ]
        },
        "timestamp": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "congestion_level": {
          "title": "CongestionLevel",
          "type": "string",
          "enum": [
            "UNKNOWN_CONGESTION_LEVEL",
            "RUNNING_SMOOTHLY",
            "STOP_AND_GO",
            "CONGESTION",
            "SEVERE_CONGESTION"
          ]
        },
        "occupancy_status": {
          "title": "OccupancyStatus",
          "type": "string",
          "enum": [
            "EMPTY",
            "MANY_SEATS_AVAILABLE",
            "FEW_SEATS_AVAILABLE",
            "STANDING_ROOM_ONLY",
            "CRUSHED_STANDING_ROOM_ONLY",
            "FULL",
            "NOT_ACCEPTING_PASSENGERS"
          ]
        }
      }
    },
    "Alert": {
      "title": "Alert",
      "type": "object",
      "properties": {
        "active_period": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/TimeRange"
          }
        },
        "informed_entity": {
          "type": "array",
          "items": {
            "$ref": "#/definitions/EntitySelector"
          }
        },
        "cause": {
          "title": "Cause",
          "type": "string",
          "enum": [
            "UNKNOWN_CAUSE",
            "OTHER_CAUSE",
            "TECHNICAL_PROBLEM",
            "STRIKE",
            "DEMONSTRATION",
            "ACCIDENT",
            "HOLIDAY",
            "WEATHER",
            "MAINTENANCE",
            "CONSTRUCTION",
            "POLICE_ACTIVITY",
            "MEDICAL_EMERGENCY"
          ]
        },
        "effect": {
          "title": "Effect",
          "type": "string",
          "enum": [
            "NO_SERVICE",
            "REDUCED_SERVICE",
            "SIGNIFICANT_DELAYS",
            "DETOUR",
            "ADDITIONAL_SERVICE",
            "MODIFIED_SERVICE",
            "OTHER_EFFECT",
            "UNKNOWN_EFFECT",
            "STOP_MOVED"
          ]
        },
        "url": {
          "$ref": "#/definitions/TranslatedString"
        },
        "header_text": {
          "$ref": "#/definitions/TranslatedString"
        },
        "description_text": {
          "$ref": "#/definitions/TranslatedString"
        }
      }
    },
    "TimeRange": {
      "title": "TimeRange",
      "type": "object",
      "properties": {
        "start": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        },
        "end": {
          "type": "integer",
          "minimum": 0,
          "maximum": 9007199254740991
        }
      }
    },
    "Position": {
      "title": "Position",
      "type": "object",
      "properties": {
        "latitude": {
          "type": "number"
        },
        "longitude": {
          "type": "number"
        },
        "bearing": {
          "type": "number"
        },
        "odometer": {
          "type": "number"
        },
        "speed": {
          "type": "number"
        }
      },
      "required": [
        "latitude",
        "longitude"
      ]
    },
    "EntitySelector": {
      "title": "EntitySelector",
      "type": "object",
      "properties": {
        "agency_id": {
          "type": "string"
        },
        "route_id": {
          "type": "string"
        },
        "route_type": {
          "type": "integer",
          "minimum": -2147483648,
          "maximum": 2147483647
        },
        "trip": {
          "$ref": "#/definitions/TripDescriptor"
        },
        "stop_id": {
          "type": "string"
        }
      }
    }
  }
}