Local Delivery Unit Boundaries (LDU) Coordinate system: 4326 - "WGS 84" Abstract: The Local Deliver Unit (LDU) boundary file represents neighborhood areas associated with six digit postal code assignments. The LDU is derived from various CanMap topographic features and enhanced Canada Post data. The boundary file is generated from point addresses with six-digit postal codes attribute assignments. The LDU Boundaries allow for a many to many relationship. For example, one postal code may be represented by more than one LDU boundary and one LDU boundary may be associated with multiple postal codes. This boundary file has an accompanying Postal Code Lookup Table available which contains primary and other postal codes for buildings or discrete areas with multiple postal codes in the LDU file. Note: In 2012, there was a datum change from NAD83 to WGS84.

Additional Documentation

• Metadata Information

  Language: eng; CAN

  Last Update: 2015-07-06

  Metadata Contact:

  Scholars Portal, Ontario Council of University Libraries Toronto Ontario, Canada

  http://scholarsportal.info

  Contact Instructions:

  gis@scholarsportal.info

  Metadata Standard:

  North American Profile of ISO19115:2003 - Geographic Information

• Citation Information

  
  
  

  Series

  Name: CanMap Postal Code Suite

  
  

  DMTI Spatial Inc. Markham Ontario, Canada

  Canada Post Ottawa Ontario, Canada

  Themes or Categories of the Resource: boundaries

  Keywords:

  postal codes, local delivery unit, Canada Post

  Postal services, Service postal, Postal codes

  Place Keywords:

  Continent > North America > Canada > Ontario

  Purpose:

  To enable the creation of nation wide Postal Code mapping and other applications.

  Dataset Language: eng. CAN

  Status: completed

  Update Frequency: asNeeded

  Spatial Representation Type: vector

  Processing Environment:

  Microsoft Windows Vista Version 6.0 (Build 6002) Service Pack 2; ESRI ArcCatalog 9.3.0.1770

  Extent

  West Longitude: -141.001870

  East Longitude: -52.619358

  North Latitude: 83.135500

  South Latitude: 41.681414

  
  

  Supplemental Information:

  CanMap LDU Boundary was created based on Canada Post data and CanMap Streetfiles.

• Spatial Representation - Vector

  Geometric Objects:

  Object Type: complex

  Object Count: 1978783

• Reference System Information

  Reference System Identifier

  Value: 4326

  Code Space: http://www.epsg-registry.org/

• Data Quality Information

  Scope Level: dataset

  Each postal code is assigned a land parcel on the base of street blocks. DOM_PCA indicates the dominant postal code boundary with value 1. If there is only one PCA boundary corresponding to the postal code, the DOM_PCA has a value of 1. If one postal code has multiple PCA boundaries, the boundary, which includes the highest number of addresses, will be given a value of 1.

  
  

  Postal Code Local Delivery Unit (LDU) boundary is created from CPC postal code address dataset and CanMap® Streetfiles. Canada Post is the primary data source for the product.

• Distribution Information

  Distributor:

  DMTI Spatial Inc. Markham Ontario, Canada