National Road Network
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
Identification Information:
- Citation:
-
- Citation Information:
-
- Originator:
- Government of Canada, Natural Resources Canada, Earth Sciences Sector, Geomatics Canada, Centre for Topographic Information
- Publication Date:
- 2003-11-19
- Title:
- National Road Network
- Edition:
- 2.0
- Geospatial Data Presentation Form:
- Digital, Vector Digital Data
- Series Information:
-
- Series Name:
- National Road Network
- Issue Identification:
- 2.0
- Publication Information:
-
- Publication Place:
- Sherbrooke, Quebec, Canada
- Publisher:
- Government of Canada, Natural Resources Canada, Centre for Topographic Information
- Other Citation Details:
- English, GeoBase
- Online Linkage:
- http://www.geobase.ca/geobase/en/data/nrn/index.html
- Description:
-
- Abstract:
- The National Road Network (NRN) product contains quality geospatial data (current, accurate, consistent and maintained) of Canadian road phenomena. The NRN product is distributed in the form of thirteen provincial or territorial datasets and consists of two linear entities (Road Segment and Ferry Connection Segment) and three punctual entities (Junction, Blocked Passage, Toll Point) with which is associated a series of descriptive attributes such as, among others: First House Number, Last House Number, Street Name Body, Place Name, Functional Road Class, Pavement Status, Number Of Lanes, Structure Type, Route Number, Route Name, Exit Number.
The maintenance of the NRN data is done within the framework of intergovernmental partnership agreements (federal, provincial, territorial and municipal) by interested closest to source governmental bodies capable of offering adequate and current representations of the road phenomena. The frequency of maintenance aimed is of at least one update a year. Data produced form a homogeneous and standardized view of the entire Canadian territory.
The NRN conceptual model was elaborated in collaboration with interested data providers and is adopted by the Canadian Council on Geomatics (CCOG). The standard ISO 14825 — Intelligent transport systems — Geographic Data Files (GDF) — Overall data specification served as a guide for the elaboration of the NRN conceptual model and catalogue. The NRN vocabulary used (class names, attribute names and definitions) largely conforms to the ISO 14825.
- Purpose:
- The National Road Network (NRN) provides quality geospatial and attributive data (current, accurate, consistent), homogeneous and normalized of the entire Canadian road network. GeoBase 4
The NRN data serve as a foundation for several applications. This common geometric base is maintained on a regular basis by closest to the source organizations selected for their specific interests or for their ease in offering adequate, up-to-date representations of road phenomena, in accordance with the GeoBase initiative (www.geobase.ca). This common infrastructure facilitates data integration of NRN data with supplementary data.
- Time Period of Content:
-
- Time Period Information:
-
- Range of Dates/Times:
-
- Beginning Date:
- 1979-07
- Status:
-
- Progress:
- In Work
- Maintenance and Update Frequency:
- Yearly
- Spatial Domain:
-
- Bounding Coordinates:
-
- West Bounding Coordinate:
- -141
- East Bounding Coordinate:
- -52.6
- North Bounding Coordinate:
- 76.5
- South Bounding Coordinate:
- 41.7
- Keywords:
-
- Theme:
-
- Theme Keyword Thesaurus:
- GCMD
- Theme Keyword:
- Earth Science > Human Dimensions > Infrastructure > Transportation
- Theme:
-
- Theme Keyword Thesaurus:
- none
- Theme Keyword:
- location
- Place:
-
- Place Keyword Thesaurus:
- GCMD
- Place Keyword:
- Global Regions > Mid-latitude
- Place Keyword:
- Global Regions > North America
- Place Keyword:
- Global Regions > Northern Hemisphere
- Place Keyword:
- Global Regions > Western Hemisphere
- Place:
-
- Place Keyword Thesaurus:
- CEONET
- Place Keyword:
- Canada
- Place Keyword:
- Canada > Alberta
- Place Keyword:
- Canada > British Columbia
- Place Keyword:
- Canada > Manitoba
- Place Keyword:
- Canada > New Brunswick
- Place Keyword:
- Canada > Newfoundland And Labrador
- Place Keyword:
- Canada > Northwest Territories
- Place Keyword:
- Canada > Nova Scotia
- Place Keyword:
- Canada > Nunavut
- Place Keyword:
- Canada > Ontario
- Place Keyword:
- Canada > Prince Edward Island
- Place Keyword:
- Canada > Quebec
- Place Keyword:
- Canada > Saskatchewan
- Place Keyword:
- Canada > Yukon
- Access Constraints:
- Data are subject to the GeoBase Unrestricted Use Licence Agreement (http://www.geobase.ca - Data/Licence)
- Use Constraints:
- Data are subject to the GeoBase Unrestricted Use Licence Agreement (http://www.geobase.ca - Data/Licence)
- Point of Contact:
-
- Contact Information:
-
- Contact Person Primary:
-
- Contact Person:
- Geobase Technical Support
- Contact Organization:
- Government of Canada, Natural Resources Canada, Earth Sciences Sector, Geomatics Canada, Centre for Topographic Information
- Contact Address:
-
- Address Type:
- Mailing and physical address
- Address:
- 2144, King Street West, Suite 010
- City:
- Sherbrooke
- State or Province:
- Quebec
- Postal Code:
- J1J 2E8
- Country:
- Canada
- Contact Voice Telephone:
- +01-819-564-4857 / 1-800-661-2638 (Canada and USA)
- Contact Facsimile Telephone:
- +01-819-564-5698
- Contact Electronic Mail Address:
- supportGeobase@nrcan.gc.ca
Data Quality Information:
- Attribute Accuracy:
-
- Attribute Accuracy Report:
- The method used for evaluating the accuracy of the non quantitative attribute values with respect to reality is determined by each data provider.
- Logical Consistency Report:
- The physical implementation of the NRN product differs from the conceptual model in what concerned the management of object metadata and the addition of certain attributes to the entity Road Segment.
- Completeness Report:
- NRN road representation corresponds to centerline of all non restricted usage roads (5 meters wide or more, drivable and not blocked by an obstacle). Roads isolated from the main road network, alleyways, resource and recreational roads and addressing information may not be included in some NRN datasets.
- Positional Accuracy:
-
- Horizontal Positional Accuracy:
-
- Horizontal Positional Accuracy Report:
- The planimetric accuracy aimed for the product is 10 meters or better. Under the data maintenance phase, no systematic validation of geometric and attributive accuracies is performed on all NRN datasets.
Spatial Data Organization Information:
- Direct Spatial Reference Method:
- Vector
Spatial Reference Information:
- Horizontal Coordinate System Definition:
-
- Geographic:
-
- Latitude Resolution:
- 0.0000001
- Longitude Resolution:
- 0.0000001
- Geographic Coordinate Units:
- Decimal degrees
- Geodetic Model:
-
- Horizontal Datum Name:
- NAD83CSRS (North American Datum 1983 in Canadian Spatial Reference System)
- Ellipsoid Name:
- GRS80 (Geodetic Reference System 1980)
- Semi-major Axis:
- 6378137
- Denominator of Flattening Ratio:
- 298.25722101
Entity and Attribute Information:
- Overview Description:
-
- Entity and Attribute Overview:
- See Detail Citation.
- Entity and Attribute Detail Citation:
- National Road Network, edition 2.0 - Feature Catalogue
Distribution Information:
- Distributor:
-
- Contact Information:
-
- Contact Person Primary:
-
- Contact Person:
- Geobase Technical Support
- Contact Organization:
- Government of Canada, Natural Resources Canada, Earth Sciences Sector, Geomatics Canada, Centre for Topographic Information
- Contact Address:
-
- Address Type:
- Mailing and physical address
- Address:
- 2144, King Street West, Suite 010
- City:
- Sherbrooke
- State or Province:
- Quebec
- Postal Code:
- J1J 2E8
- Country:
- Canada
- Contact Voice Telephone:
- +01-819-564-4857 / 1-800-661-2638 (Canada and USA)
- Contact Facsimile Telephone:
- +01-819-564-5698
- Contact Electronic Mail Address:
- supportGeobase@nrcan.gc.ca
- Standard Order Process:
-
- Digital Form:
-
- Digital Transfer Information:
-
- Format Name:
- Geography Markup Language (GML), ESRI Shape files, Keyhole Markup Language (KML)
- Fees:
- Gratuit-Free
Metadata Reference Information:
- Metadata Date:
- 2003-01-16
- Metadata Review Date:
- 2007-10-30
- Metadata Future Review Date:
- 2008-04-27
- Metadata Contact:
-
- Contact Information:
-
- Contact Person Primary:
-
- Contact Person:
- Geobase Technical Support
- Contact Organization:
- Government of Canada, Natural Resources Canada, Earth Sciences Sector, Geomatics Canada, Centre for Topographic Information
- Contact Address:
-
- Address Type:
- Mailing and physical address
- Address:
- 2144, King Street West, Suite 010
- City:
- Sherbrooke
- State or Province:
- Quebec
- Postal Code:
- J1J 2E8
- Country:
- Canada
- Contact Voice Telephone:
- +01-819-564-4857 / 1-800-661-2638 (Canada and USA)
- Contact Facsimile Telephone:
- +01-819-564-5698
- Contact Electronic Mail Address:
- supportGeobase@nrcan.gc.ca
- Metadata Standard Name:
- FGDC Content Standard for Digital Geospatial Metadata
- Metadata Standard Version:
- FGDC-STD-001-1998
- Metadata Time Convention:
- Local Time