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Logical Data Model

Project:

Census Agglomeration
Appears In: Geography LDM Subject Area
An area formed by one or more adjacent municipalities centered on a population (known as the core). A Census Agglomeration (CA) must have a core population of at least 10,000, based on data from the previous Census of Population Program.<br/>
  • Attributes
  • Associations To
  • Constraints
Attribute Type
Census Agglomeration Code Codeable Concept
Notes: A coded concept that specifies a census agglomeration.<br/><br/>Value set: <br/><a href="https://www23.statcan.gc.ca/imdb/p3VD.pl?Function=getVD&TVD=1348193&CVD=1348194&CPV=B&CST=01012021&CLV=1&MLV=3"><font color="#0000ff"><u>https://www23.statcan.gc.ca/imdb/p3VD.pl?Function=getVD&TVD=1348193&CVD=1348194&CPV=B&CST=01012021&CLV=1&MLV=3</u></font></a> <br/>
Census Metropolitan Area - Agglomeration Type Code Codeable Concept
Notes: A coded concept that specifies the type of census metropolitan area or census agglomeration.<br/><br/>Value set: <br/><a href="https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/Definition-eng.cfm?ID=geo009"><font color="#0000ff"><u>https://www12.statcan.gc.ca/census-recensement/2021/ref/dict/az/Definition-eng.cfm?ID=geo009</u></font></a> <br/>
Geographic Boundary Polygon
Notes: The abstract lines or physical features that separate one place or area from another.<br/>
Geography Effective Date Date
Notes: The first date when the information specified is valid, which is generally the release date of a census.<br/>
Relationship Target Entity
for   Census Subdivision Agglomeration
has
A Census tract can belong to a Census Metropolitan Area (CMA) OR a Census Agglomeration (CA), depending on the size of the population.<br/><br/>
Census Tract
Constraint
Unique Key: Census Agglomeration Code, Geography Effective Date