1 Statistical area boundary file (CARTLIB) Principal investigator: Statistics Canada Codebook by University of Toronto Data Library Service 27/09/1995 based on: CARTLIB : a library of census statistical area boundaries for computer mapping : technical details./ by Russell S. Page Ottawa, Ont.: Statistics Canada, Census Division, August 31, 1972. 11. Introduction CARTLIB is a library of the boundary locations of census divisions and census tracts in a format usable by computer mapping programmes. The locations of the boundaries are approximate only, because they are intended solely for graphic display and the shapes have been generalized into polygons of from 3 to 98 sides. Each boundary is defined by the X-Y co-ordinates of each vertex in a clockwise sequence, with the first vertex (the most northern one usually) being repeated at the end. The co-ordinates of the vertices of the census divisions are determined by an arbitrary rectangular grid. Southern Ontario and Quebec are part of an inset of the main map of Canada, at a larger scale. The co-ordinates of the census tract polygons conform to the Universal Transverse Mercator Grid (6 degree zones) as printed on the National Topographical Series of maps. It should be noted, however, that because Calgary and Saint John, N.B. CMAs are located in two UTM zones, the co-ordinates have been converted to the grid of one zone. It is recommended that users first use the base maps at the following scales to get an idea of the best scale for their requirements: .006 for census divisions and .0016 for census tracts (this is the ratio of units on the output map to units in the file). 12. Land area file : record layout Field Size Columns Type Description 1 2 1 - 2 A Type of statistical area: where: CD - census division CT - census tract 2 6 3 - 8 I Statistical area code The Census geographic code of the area concerned. Census division code - 4 digits Census tract code: digits 1-3 - CMA/CA code digits 4-6 - CT code See the Official Lists for codes and areas. Chicoutimi-Jonquiere are one unofficial tract, and are not included. 3 1 9 A * if area is unofficial An asterisk for unofficial census tracts. 4 11 10 - 20 A Blank 5 10 21 - 30 F Land area in square miles The land area in square miles. For convenience, every area has two decimal places, but the census divisions were measured to the nearest square mile. These unofficial land areas were measured from topographic maps with a planimeter. 13. Boundary file : record layout Field Size Columns Type Description 1 6 1 - 6 A Statistical area code The Census geographic code of the area concerned. Census division code - 4 digits Census tract code: digits 1-3 - CMA/CA code digits 4-6 - CT code See the Official Lists for codes and areas. Chicoutimi-Jonquiere are one unofficial tract, and are not included. 2 2 7 - 8 I Sequence of polygons in statistical area An integer indicating the sequence of polygons needed to delineate a statistical area, for the second and subsequent polygons if required (this rarely occurs). 3 1 9 A * if area is unofficial An asterisk here indicates an unofficial census tract. 4 1 10 A 'A' for first record of each boundary An 'A' here indicates the first vertex of a polygon. 5 2 11 - 12 I Sequence number of records in boundary An integer indicating the sequence of vertices in each polygon. 6 8 13 - 20 F X co-ordinate of boundary vertex The X co-ordinate is a decimal number. 7 10 21 - 30 F Y co-ordinate of boundary vertex The Y co-ordinate is a decimal number. 1 Appendix 1: Census metropolitan area (CMA) and Census agglomerate (CA) codes CMA name Code Frequency Calgary 1 77 Edmonton 3 88 Halifax 4 48 Hamilton 5 109 Kitchener 6 45 London 7 59 Montreal 8 579 Ottawa-Hull 10 120 Quebec 11 100 Regina 12 29 St. Catharines-Niagara 13 53 St. John's 14 29 Saint John 15 43 Saskatoon 16 22 Sudbury 19 30 Thunder Bay 20 25 Toronto 21 452 Vancouver 23 182 Victoria 24 43 Windsor 25 56 Winnipeg 26 106 CA name Code Frequency Brantford 32 16 Guelph 37 14 Kingston 38 18 Oshawa 41 22 Peterborough 42 16 Sarnia 43 18 Sault Ste. Marie 44 19 Sherbrooke 46 20 Trois-Rivieres 48 21