Filename extension .sdep or .xml Uniform Type Identifier (UTI) public.xml | Internet media type text/xml Developed by ELGIN | |
Initial release 7 April 2006 (2006-04-07) Latest release 5
(May 2010; 6 years ago (2010-05)) | ||
The SDEP (Street events Data Exchange Protocol) comprises an XML data schema and web service WSDL for exchanging information about streetworks, roadworks, and street events between systems.
Contents
- RoadEventList
- RoadEvent
- LastModified
- Description
- Cause
- ResponsibleAuthority
- OrganisationName
- OrganisationID
- Originator
- OrganisationSectionID
- OrganisationSectionName
- OriginatorEventReference
- Location
- LocationDescription
- StartDatim
- EndDatim
- CarriagewayRestriction
- FootwayClosure
- ParkingSuspensions
- gmlPolygon
- gmlLineString
- gmlPoint
- USRN
- OutOfHours
- Diversion
- Impact
- PlannedStatus
- References
ELGIN was funded by the UK NeSDS Government e-Standards Programme to conduct a consultation and convene meetings to define the requirements of a common data exchange protocol for streetworks registers and other systems handling street events data. SDEP was developed to allow the open exchange of such data between back office systems used by local authorities to manage their highway networks in order to enable e-Government and streetworks co-ordination.
The SDEP consultation group comprised ELGIN (Chair), Mayrise Ltd., Symology Ltd., Pitney Bowes Inc., Exor Corporation (Bentley Systems), Office of the Deputy Prime Minister and Transport for London, with the National Traffic Control Centre in an observing capacity.
RoadEventList
The data comes in a long list of RoadEvents and sits in a RoadEventList.
RoadEvent
Each event is described as a RoadEvent in the Xml.
LastModified
Date and time the event was last modified/updated with Elgin
Description
Description of the event/works
Cause
The cause of the roadevent.
This is currently restricted to the following values
Unknown may include diversions, temporary traffic orders etc. which would not fall intio any of the other categories.
ResponsibleAuthority
The authority responsible for sending the information to Elgin
OrganisationName
The name of the organisation or authority
OrganisationID
The code for the authority or organisation
Originator
The works promoter (organisation or authority) responsible for the event/works
OrganisationName
The name of the works promoter
OrganisationID
The code for the works promoter
OrganisationSectionID
The code for the section/area of the promoter. Not a mandatory field.
OrganisationSectionName
Name of the section/area of the promoter. Not a mandatory field.
OriginatorEventReference
Unique reference for the event/works.
Location
The following fields define the location of the event/works. This includes when and where the event/works take place. There can be multiple sites(where) or phases(when) for an event/works.
LocationDescription
A description of the site/phase for the event/phase
StartDatim
Start date and time for this site/phase. This also includes an Estimated description of whether the date is an estimate (true) or actual (false).
EndDatim
End date and time for this site/phase. This also includes an Estimated description of whether the date is an estimate (true) or actual (false).
CarriagewayRestriction
The restriction on the carriageway due to traffic management.
Values include
FootwayClosure
Indicates whether the footway is closed(true) or not(false)
ParkingSuspensions
Indicates whether parking suspensions are in force (true) or not(false).
gml:Polygon
Describes the geometry of the site/phase if polygon information is available.
gml:LineString
Describes the geometry of the site/phase if polyline information is available.
gml:Point
Point information for the site/phase.
USRN
The Unique Street Reference Number
OutOfHours
Describes if the work is to be done out of hours(true) if no information is available or the work is to take place in normal working hours this will be set to false.
Diversion
Indicates whether the event is a diversion(true) or not(false).
Impact
The impact of a roadwork is derived in Elgin and is categorised into Severe, Moderate, Slight or Minimal according to the following criteria:
Severe impact - severe delays likely
Applies to major works on motorways where the anticipated delay is greater than 30 minutes.
Moderate impact - delays likely
Applies in the following cases:
Slight impact - delays possible
Minimal impact - delays unlikely
Applies to works on motorways and trunk routes where there is no anticipated delay, and to works on footways (pavements). All roadworks that have not been assigned an impact due to insufficient information are assigned to this category.
PlannedStatus
The status of the works includes the following