{
    "$schema": "http://json-schema.org/schema#",
    "$schemaVersion": "0.0.2",
    "modelTags": "",
    "$id": "https://smart-data-models.github.io/dataModel.Transportation/CrowdFlowObserved/schema.json",
    "title": " - SynchroniCity - Transportation / CrowdFlowObserved",
    "description": "CrowdFlowObserved",
    "type": "object",
    "allOf": [
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
        },
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
        },
        {
            "properties": {
                "type": {
                    "type": "string",
                    "enum": [
                        "CrowdFlowObserved"
                    ],
                    "description": "Property. NGSI Entity type. It has to be CrowdFlowObserved"
                },
                "refRoadSegment": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "description": "Property. Identifier format of any NGSI entity"
                        },
                        {
                            "type": "string",
                            "format": "uri",
                            "description": "Property. Identifier format of any NGSI entity"
                        }
                    ],
                    "description": "Relationship. Concerned road segment on which the observation has been made. Model:'https://schema.org/URL'."
                },
                "dateObserved": {
                    "type": "string",
                    "description": "Property. The date and time of this observation in ISO8601 UTC format. It can be represented by an specific time instant or by an ISO8601 interval. As a workaround for the lack of support of Orion Context Broker for datetime intervals, it can be used two separate attributes: `dateObservedFrom`, `dateObservedTo`. Model:'https://schema.org/URL'."
                },
                "dateObservedFrom": {
                    "type": "string",
                    "format": "date-time",
                    "description": "Property. Model:'https://schema.org/DateTime'. Observation period start date and time. See `dateObserved`."
                },
                "dateObservedTo": {
                    "type": "string",
                    "format": "date-time",
                    "description": "Property. Observation period end date and time. See `dateObserved`.. Model:'https://schema.org/DateTime'."
                },
                "peopleCount": {
                    "type": "integer",
                    "minimum": 0,
                    "description": "Property. Total number of people detected during this observation."
                },
                "occupancy": {
                    "type": "number",
                    "minimum": 0,
                    "maximum": 1,
                    "description": "Property. Fraction of the observation time where a person has been occupying the observed walkway. Model:'https://schema.org/Number)'"
                },
                "averageCrowdSpeed": {
                    "type": "number",
                    "minimum": 0,
                    "description": "Property. Average speed of the crowd transiting during the observation period. Model:'https://schema.org/Number'. Units:'Kilometer per hour (Km/h).'"
                },
                "congested": {
                    "type": "boolean",
                    "description": "Property. Flags whether there was a crowd congestion during the observation period in the referred walkway. The absence of this attribute means no crowd congestion. Model:'https://schema.org/Boolean'."
                },
                "averageHeadwayTime": {
                    "type": "number",
                    "minimum": 0,
                    "description": "Property. Average headway time. Headway time is the time\n    elapsed between two consecutive persons. Model:'https://schema.org/Number'. Units:'second (s)'"
                },
                "direction": {
                    "type": "string",
                    "enum": [
                        "inbound",
                        "outbound"
                    ],
                    "description": "Property. Usual direction of travel in the walkway referred by this observation with respect to the city center. Model:'https://schema.org/Text'. Enum:'inbound, outbound'"
                }
            }
        }
    ],
    "required": [
        "id",
        "type",
        "dateObserved"
    ]
}