U.S. Department of Transportation · Schema
WZDx Feed Information
Describes WZDx feed header information such as metadata, contact information, and data sources
TravelUnited StatesAviationAirlinesAirportsGovernmentRegulatorDistributionAviation Consumer ProtectionOpen DataTransportationSafetyStatisticsAutomotiveRail
Properties
| Name | Type | Description |
|---|---|---|
| publisher | string | The organization responsible for publishing the feed |
| contact_name | string | The name of the individual or group responsible for the data feed |
| contact_email | string | The email address of the individual or group responsible for the data feed |
| update_frequency | integer | The frequency in seconds at which the data feed is updated |
| update_date | string | The UTC date and time when the GeoJSON file (representing the instance of the feed) was generated |
| version | string | The WZDx specification version used to create the data feed, in 'major.minor' format |
| license | object | The URL of the license that applies to the data in the WZDx feed. This *must* be the string "https://creativecommons.org/publicdomain/zero/1.0/" |
| data_sources | array | A list of specific data sources for the road event data in the feed |
JSON Schema
{
"$id": "https://raw.githubusercontent.com/usdot-jpo-ode/wzdx/main/schemas/4.2/FeedInfo.json",
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "WZDx Feed Information",
"description": "Describes WZDx feed header information such as metadata, contact information, and data sources",
"type": "object",
"properties": {
"publisher": {
"description": "The organization responsible for publishing the feed",
"type": "string"
},
"contact_name": {
"description": "The name of the individual or group responsible for the data feed",
"type": "string"
},
"contact_email": {
"description": "The email address of the individual or group responsible for the data feed",
"type": "string",
"format": "email"
},
"update_frequency": {
"description": "The frequency in seconds at which the data feed is updated",
"type": "integer",
"minimum": 1
},
"update_date": {
"description": "The UTC date and time when the GeoJSON file (representing the instance of the feed) was generated",
"type": "string",
"format": "date-time"
},
"version": {
"description": "The WZDx specification version used to create the data feed, in 'major.minor' format",
"type": "string",
"pattern": "^(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)$"
},
"license": {
"description": "The URL of the license that applies to the data in the WZDx feed. This *must* be the string \"https://creativecommons.org/publicdomain/zero/1.0/\"",
"enum": [
"https://creativecommons.org/publicdomain/zero/1.0/"
]
},
"data_sources": {
"description": "A list of specific data sources for the road event data in the feed",
"type": "array",
"items": {
"$ref": "#/definitions/FeedDataSource"
},
"minItems": 1
}
},
"required": [
"update_date",
"version",
"publisher",
"data_sources"
],
"definitions": {
"FeedDataSource": {
"title": "WZDx Feed Data Source",
"description": "Describes information about a specific data source used to build the work zone data feed",
"type": "object",
"properties": {
"data_source_id": {
"description": "Unique identifier for the organization providing work zone data. It is recommended that this identifier is a Universally Unique IDentifier (UUID) as defined in [RFC 4122](https://datatracker.ietf.org/doc/html/rfc4122).",
"type": "string"
},
"organization_name": {
"description": "The name of the organization for the authoritative source of the work zone data",
"type": "string"
},
"contact_name": {
"description": "The name of the individual or group responsible for the data source",
"type": "string"
},
"contact_email": {
"description": "The email address of the individual or group responsible for the data source",
"type": "string",
"format": "email"
},
"update_frequency": {
"description": "The frequency in seconds at which the data source is updated",
"type": "integer",
"minimum": 1
},
"update_date": {
"description": "The UTC date and time when the data source was last updated",
"type": "string",
"format": "date-time"
},
"lrs_type": {
"description": "**DEPRECATED** Describes the type of linear referencing system used for the milepost measurements",
"type": "string"
},
"lrs_url": {
"description": "**DEPRECATED** A URL where additional information on the LRS information and transformation information is stored",
"type": "string",
"format": "uri"
},
"location_verify_method": {
"description": "***DEPRECATED***The method used to verify the accuracy of the location information",
"type": "string"
}
},
"required": [
"data_source_id",
"organization_name"
]
}
}
}