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status_changes.json
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status_changes.json
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{
"$id": "https://raw.githubusercontent.com/openmobilityfoundation/mobility-data-specification/main/provider/status_changes.json",
"$schema": "http://json-schema.org/draft-06/schema#",
"title": "Schema for MDS Provider status_changes payloads",
"type": "object",
"definitions": {
"string": {
"$id": "#/definitions/string",
"type": "string",
"description": "A length-limited string type",
"maxLength": 255,
"default": "",
"examples": [
"ABC123"
],
"pattern": "^(.*)$"
},
"timestamp": {
"$id": "#/definitions/timestamp",
"type": "number",
"description": "Integer milliseconds since Unix epoch",
"multipleOf": 1.0,
"minimum": 1514764800000
},
"uuid": {
"$id": "#/definitions/uuid",
"type": "string",
"description": "A UUID used to uniquely identifty an object",
"default": "",
"examples": [
"3c9604d6-b5ee-11e8-96f8-529269fb1459"
],
"pattern": "^([0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12})$"
},
"version": {
"$id": "#/definitions/version",
"type": "string",
"description": "The version of MDS this data represents",
"examples": [
"1.2.0"
],
"pattern": "^1\\.2\\.[0-9]+$"
},
"MDS_Feature_Point": {
"$id": "#/definitions/MDS_Feature_Point",
"title": "MDS GeoJSON Feature Point",
"type": "object",
"required": [
"type",
"properties",
"geometry"
],
"properties": {
"type": {
"type": "string",
"enum": [
"Feature"
]
},
"id": {
"oneOf": [
{
"type": "number"
},
{
"type": "string"
}
]
},
"properties": {
"type": "object",
"required": [
"timestamp"
],
"properties": {
"timestamp": {
"$ref": "#/definitions/timestamp"
},
"stop_id": {
"$ref": "#/definitions/uuid"
},
"altitude": {
"type": "number",
"description": "Altitude above mean sea level in meters"
},
"heading": {
"type": "number",
"description": "Degrees - clockwise starting at 0 degrees at true North"
},
"speed": {
"type": "number",
"description": "Estimated speed in meters / sec as reported by the GPS chipset"
},
"accuracy": {
"type": "number",
"description": "Horizontal accuracy, in meters"
},
"hdop": {
"type": "number",
"description": "Horizontal GPS or GNSS accuracy value"
},
"satellites": {
"type": "integer",
"description": "Number of GPS or GNSS satellites"
}
}
},
"geometry": {
"$ref": "#/definitions/Point"
},
"bbox": {
"type": "array",
"minItems": 4,
"items": {
"type": "number"
}
}
}
},
"Point": {
"$id": "#/definitions/Point",
"title": "GeoJSON Point",
"type": "object",
"required": [
"type",
"coordinates"
],
"properties": {
"type": {
"type": "string",
"enum": [
"Point"
]
},
"coordinates": {
"type": "array",
"minItems": 2,
"items": [
{
"type": "number",
"minimum": -180.0,
"maximum": 180.0
},
{
"type": "number",
"minimum": -90.0,
"maximum": 90.0
}
],
"maxItems": 2
},
"bbox": {
"type": "array",
"minItems": 4,
"items": {
"type": "number"
}
}
}
},
"propulsion_type": {
"$id": "#/definitions/propulsion_type",
"type": "string",
"description": "The type of propulsion",
"enum": [
"combustion",
"electric",
"electric_assist",
"human"
]
},
"propulsion_types": {
"$id": "#/definitions/propulsion_types",
"type": "array",
"description": "Array of propulsion types, allowing multiple values",
"items": {
"$id": "#/definitions/propulsion_types/items",
"$ref": "#/definitions/propulsion_type"
},
"uniqueItems": true
},
"vehicle_type": {
"$id": "#/definitions/vehicle_type",
"type": "string",
"description": "The type of vehicle",
"enum": [
"bicycle",
"cargo_bicycle",
"car",
"scooter",
"moped",
"other"
]
},
"vehicle_state": {
"$id": "#/definitions/vehicle_state",
"type": "string",
"description": "The state of a vehicle",
"enum": [
"available",
"elsewhere",
"non_operational",
"on_trip",
"removed",
"reserved",
"unknown"
]
},
"vehicle_event": {
"$id": "#/definitions/vehicle_event",
"type": "string",
"description": "An event that changes a vehicle's state",
"enum": [
"agency_drop_off",
"agency_pick_up",
"battery_charged",
"battery_low",
"comms_lost",
"comms_restored",
"compliance_pick_up",
"decommissioned",
"located",
"maintenance",
"maintenance_pick_up",
"missing",
"off_hours",
"on_hours",
"provider_drop_off",
"rebalance_pick_up",
"reservation_cancel",
"reservation_start",
"system_resume",
"system_suspend",
"trip_cancel",
"trip_end",
"trip_enter_jurisdiction",
"trip_leave_jurisdiction",
"trip_start",
"unspecified"
]
},
"vehicle_events": {
"$id": "#/definitions/vehicle_events",
"type": "array",
"description": "Array of events indicating a change to a vehicle's state",
"uniqueItems": true,
"minItems": 1,
"items": {
"$ref": "#/definitions/vehicle_event"
}
}
},
"required": [
"data",
"version"
],
"properties": {
"data": {
"$id": "#/properties/data",
"type": "object",
"description": "The data records in this payload",
"required": [
"status_changes"
],
"properties": {
"status_changes": {
"$id": "#/properties/data/properties/status_changes",
"type": "array",
"title": "The status_changes payload",
"items": {
"$id": "#/properties/data/properties/status_changes/items",
"type": "object",
"title": "The status_change item schema",
"additionalProperties": false,
"required": [
"provider_name",
"provider_id",
"device_id",
"vehicle_id",
"vehicle_type",
"propulsion_types",
"vehicle_state",
"event_types",
"event_time",
"event_location"
],
"properties": {
"provider_name": {
"$id": "#/definitions/vehicle/properties/provider_name",
"$ref": "#/definitions/string",
"description": "The public-facing name of the Provider"
},
"provider_id": {
"$id": "#/definitions/vehicle/properties/provider_id",
"$ref": "#/definitions/uuid",
"description": "The UUID for the Provider, unique within MDS"
},
"device_id": {
"$id": "#/definitions/vehicle/properties/device_id",
"$ref": "#/definitions/uuid",
"description": "A unique device ID in UUID format"
},
"vehicle_id": {
"$id": "#/definitions/vehicle/properties/vehicle_id",
"$ref": "#/definitions/string",
"description": "The Vehicle Identification Number visible on the vehicle itself"
},
"vehicle_type": {
"$id": "#/definitions/vehicle/properties/vehicle_type",
"$ref": "#/definitions/vehicle_type",
"description": "The type of vehicle"
},
"propulsion_types": {
"$id": "#/definitions/vehicle/properties/propulsion_types",
"$ref": "#/definitions/propulsion_types",
"description": "The type of propulsion; allows multiple values",
"minItems": 1
},
"event_time": {
"$id": "#/properties/data/properties/status_changes/items/properties/event_time",
"$ref": "#/definitions/timestamp",
"description": "The time the event occurred, expressed as a Unix Timestamp"
},
"publication_time": {
"$id": "#/properties/data/properties/status_changes/items/properties/publication_time",
"$ref": "#/definitions/timestamp",
"description": "The time the event became available through the status changes endpoint, expressed as a Unix Timestamp"
},
"event_location": {
"$id": "#/properties/data/properties/status_changes/items/properties/event_location",
"$ref": "#/definitions/MDS_Feature_Point",
"description": "The GPS or GNSS coordinates of where the event occurred"
},
"vehicle_state": {
"$id": "#/properties/data/properties/status_changes/items/properties/vehicle_state",
"$ref": "#/definitions/vehicle_state",
"description": "The state of the vehicle"
},
"event_types": {
"$id": "#/properties/data/properties/status_changes/items/properties/event_types",
"$ref": "#/definitions/vehicle_events",
"description": "The event(s) that caused a change in the vehicle's state"
},
"battery_pct": {
"$id": "#/properties/data/properties/status_changes/items/properties/battery_pct",
"type": [
"number",
"null"
],
"description": "Percent charge of device battery, expressed between 0 and 1",
"examples": [
0.89
],
"minimum": 0,
"maximum": 1
},
"trip_id": {
"$id": "#/properties/data/properties/status_changes/items/properties/trip_id",
"$ref": "#/definitions/uuid",
"description": "Trip UUID (foreign key to Trips API), required if event_types contains trip_start, trip_end, trip_cancel, trip_enter_jurisdiction, or trip_leave_jurisdiction"
},
"associated_ticket": {
"$id": "#/properties/data/properties/status_changes/items/properties/associated_ticket",
"$ref": "#/definitions/string",
"description": "Identifier for an associated ticket inside an Agency-maintained 311 or CRM system."
}
},
"allOf": [
{
"description": "valid vehicle_state and vehicle_events combinations",
"oneOf": [
{
"properties": {
"vehicle_state": {
"const": "available"
},
"event_types": {
"contains": {
"enum": [
"agency_drop_off",
"battery_charged",
"comms_restored",
"located",
"maintenance",
"on_hours",
"provider_drop_off",
"reservation_cancel",
"system_resume",
"trip_cancel",
"trip_end",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "elsewhere"
},
"event_types": {
"contains": {
"enum": [
"comms_restored",
"located",
"trip_leave_jurisdiction",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "non_operational"
},
"event_types": {
"contains": {
"enum": [
"battery_low",
"comms_restored",
"located",
"maintenance",
"off_hours",
"system_suspend",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "on_trip"
},
"event_types": {
"contains": {
"enum": [
"comms_restored",
"located",
"trip_enter_jurisdiction",
"trip_start",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "removed"
},
"event_types": {
"contains": {
"enum": [
"agency_pick_up",
"comms_restored",
"compliance_pick_up",
"decommissioned",
"located",
"maintenance_pick_up",
"rebalance_pick_up",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "reserved"
},
"event_types": {
"contains": {
"enum": [
"comms_restored",
"located",
"reservation_start",
"unspecified"
]
}
}
}
},
{
"properties": {
"vehicle_state": {
"const": "unknown"
},
"event_types": {
"contains": {
"enum": [
"comms_lost",
"missing",
"unspecified"
]
}
}
}
}
]
},
{
"description": "Conditionally require a trip_id reference",
"anyOf": [
{
"not": {
"properties": {
"event_types": {
"contains": {
"enum": [
"trip_cancel",
"trip_end",
"trip_enter_jurisdiction",
"trip_leave_jurisdiction",
"trip_start"
]
}
}
}
}
},
{
"required": [
"trip_id"
]
}
]
}
]
}
}
},
"additionalProperties": false
},
"version": {
"$id": "#/properties/version",
"$ref": "#/definitions/version"
}
},
"additionalProperties": false
}