MeasuredDataPublication
Current traffic data is delivered in the MeasuredDataPublication (MDP). This publication consists of all measurement sites recorded in the MeasurementSiteTablePublication. For each measurement site, an element siteMeasurements
is populated with the unique identification of the measurementSite, the measured information, and the timestamp of the measurement.
If available, additional information such as the number of observations used to obtain the value and the standard deviation of the current value is also included. The MDP is a specialization of PayloadPublication. This specialization is indicated by setting the xsi:type attribute of the payload
element to "MeasuredDataPublication".
The top-level structure is as follows:
Elements
Element | Mandatory | Source |
---|---|---|
publicationTime | Yes | PayloadPublication |
publicationCreator | Yes | PayloadPublication |
measurementSiteTableReference | Yes | MeasuredDataPublication |
headerInformation | Yes | MeasuredDataPublication |
siteMeasurements | 1 or more | MeasuredDataPublication |
Sub-element measurementSiteTableReference
In the MeasuredDataPublication (MDP), the measurementSiteTable used is specified. To do this, the measurementSiteTableReference
element is populated. This element consists of three mandatory attributes: id, version, and targetClass.
Attribute | Type | Mandatory | Domain | Description |
---|---|---|---|---|
id | String | Yes | Valid id | Identification of the measurementSiteTable that applies |
version | String | Yes | >=1 | Version of the measurementSiteTable that applies (current or next version) |
targetClass | String | Yes | MeasurementSiteTable | Fixed value naming the class being referenced |
XML Example
<con:payload xmlns:com="http://datex2.eu/schema/3/common" xmlns:d2="http://datex2.eu/schema/3/d2Payload" xmlns:roa="http://datex2.eu/schema/3/roadTrafficData" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:loc="http://datex2.eu/schema/3/locationReferencing" xsi:type="roa:MeasuredDataPublication" lang="en-us" modelBaseVersion="3" xsi:schemaLocation="http://datex2.eu/schema/3/d2Payload DATEXII_3_D2Payload.xsd">
<com:publicationTime>2001-12-17T09:30:47Z</com:publicationTime>
<com:publicationCreator>
<com:country>nl</com:country>
<com:nationalIdentifier>NLNDW</com:nationalIdentifier>
</com:publicationCreator>
<roa:measurementSiteTableReference id="NDW_MST" version="last" targetClass="MeasurementSiteTable"/>
<roa:headerInformation>
<com:confidentiality>noRestriction</com:confidentiality>
<com:informationStatus>real</com:informationStatus>
</roa:headerInformation>
<roa:siteMeasurements>
...
</roa:siteMeasurements>
</con:payload>