20.3.5.1
The Gazetteer contains an ASD Metadata Record (DTF8.1 type 69 Record), which is the Record for ASD data corresponding to the type 29 Metadata Record for the DCA Street Updates. This separate Record is required because some contributors only submit ASD Updates and cannot submit an LSG Metadata (type 29) Record.
20.3.5.2 Record structure
The following table shows the Record structure:
RECORD_IDENTIFIER
Identifies this Record as ASD metadata. “69”
Man
29
TER_OF_USE
Geographic domain of the gazetteer.
Man
“Cornwall”
LINKED DATA
List of application dataset used to update the ASD.
Opt
NGAZ_FREQ
Frequency with which LSG is maintained and sent to the NSG Custodian. “M”
Man
“M”
CUSTODIAN_NAME
Organisation or department/function responsible for the compilation and maintenance of the data that is a DCA Participating Authority or a National/Regional Highway Authority.
Man
“Highways”
CUSTODIAN_UPRN
UPRN of Authority Street Custodian location.
Man
100041031005
AUTH_CODE
Issued by NSG Custodian
Man
840
CO_ORD_SYSTEM
Co-ordinate reference system used in the gazetteer to describe position that is the “British National Grid”.
Man
“British National Grid”
CO_ORD_UNIT
Measure of coordinates used within the gazetteer. “Metres”
Man
“Metres”
META_DATE
Date metadata was last updated.
Man
2013-01-02
CLASS_SCHEME
Classification scheme used for all multiple value specified Fields for example DTF8.1.
Man
“DTF8.1”
GAZ_DATE
Date at which the gazetteer can be considered to be current.
Man
2017-01-02
LANGUAGE
Language(s) used for descriptors within the ASD.
Man
“ENG”
CHARACTER_SET
Textual description of character set used for the data present in the DCA Street Updates transfer file.
Man
“English”
MD_PROTECTED_STREET
Percentage of Protected Streets that are present in GeoPlace.
Man
100
MD_TRAFFIC_SENSITIVE
Percentage Traffic Sensitive Streets that are present in GeoPlace.
Man
100
MD_SED
Percentage of Special Engineering Difficulties (SEDs) that are present in GeoPlace.
Man
100
MD_PROPOSED_SED
Percentage of proposed Special Engineering Difficulties that are present in GeoPlace.
Man
100
MD_LEVEL_CROSSING
Percentage of Level Crossing Safety Zone that are present in GeoPlace.
Opt
50
MD_ENV_SENSITVE_AREA
Percentage of Environmentally Sensitive Areas that are present in GeoPlace.
Man
80
MD_STRUCTURES_NOT_SED
Percentage of Structures that are not designated SEDs that are present in GeoPlace.
Man
80
MD_PIPELINES_AND_CABLES
Percentage of Pipelines and Specialist Cables that are present in GeoPlace.
Opt
10
MD_PRIORITY_LANES
Percentage of Priority Lanes that are present in GeoPlace.
Man
20
MD_LANE_RENTAL
Percentage of Lane Rental data that is present in GeoPlace.
Man
0
MD_EARLY_NOTIFICATION
Percentage of Street subject to early notification of immediate activities that are present in GeoPlace.
Opt
100
MD_SPECIAL_EVENTS
Percentage of Special Events that are present in GeoPlace.
Man
100
MD_PARKING
Percentage of this Parking Bays and restrictions that are present in GeoPlace.
Man
0
MD_PED_CROSS_AND_SIGNALS
Percentage of Pedestrian Crossings, Traffic Signals and Traffic Sensors that are present in GeoPlace.
Man
0
MD_SPEED_LIMIT
Percentage of Speed Limits that are present in GeoPlace.
Man
0
MD_TRANS_AUTH_APP
Percentage of Transport Authority Critical Apparatus that are present in GeoPlace.
Opt
100
MD_STRATEGIC_ROUTE
Percentage of Strategic Routes that are present in GeoPlace.
Man
60
MD_STREET_LIGHT
Percentage of Street Lighting that is present in GeoPlace.
Opt
0
MD_DRAINAGE_AND_FLOOD
Percentage of Drainage and Flood Risk areas that are present in GeoPlace.
Opt
1000
MD_UNUSUAL_LAYOUT
Percentage of Streets that have an Unusual Traffic Layout that are present in GeoPlace.
Opt
0
MD_LOCAL_CONSIDER
Percentage of Streets with Local Considerations that are present in GeoPlace.
Opt
0
MD_WINTER_MAIN_ROUTE
Percentage of Streets with Winter Maintenance Routes that are present in GeoPlace.
Man
0
MD_HGV_ROUTE
Percentage of HGV Approved Routes that are present in GeoPlace.
Man
0
HD_EMERGENCY_ROUTE
Percentage of Emergency Services Routes that are present in GeoPlace.
Man
80
Table 33 – Record structure for the ASD Metadata record (Type 69)
Notes
The language code of BIL must be used in the LSG Metadata Record only to show that both English and Welsh are fully represented on equal terms in the gazetteer.
The character set must always be UTF-8.
Where a Record requests a percentage of completeness, and no Records are present in the authority area – for example there are no level crossings – then a completeness of 100% should be recorded for there being no Records.