Isodemographic Map of Canada.
by University of British Columbia, Canada Department of Fisheries and Forestry, Canada Policy Research and Coordination Branch. Published in 1971.
Shows census division boundaries, census metropolitan areas, selected census major urban areas, selected incorporated cities, and provincial and international boundaries
Based on Dominion Bureau of Statistics 1966 census of Canada.
Areal scale: one square inch represents 60,000 people.
Legend in English and French
Indexed for census divisions
The extreme spatial contrasts in population density in Canada, partly due to the advanced stage of urbanization, make a conventional map an unsuitable base to use in the presentation and analysis of many population characteristics. A map of Canada has therefore been devised in which the areas occupied by census units are proportional to their population. In addition, separate maps of the twelve largest urban centres have been devised which show census tracts in the same manner but at a larger scale.
The necessary transformation of the area and shape of census units was achieved mechanically by means of physical models of Canada and the individual cities in which the populations of the units were represented by appropriate numbers of 1/8” diameter steel ball bearings. The final output, termed an isodemographic map, is a graphical refinement of the physical models to which boundary detail and some topographic features have been added to aid the user.
An Isodemographic map is a type of cartogram in which the size of each area (e.g., country, province, city) is proportional to its population. (Synonym: density-equalizing map)
A cartogram is a map in which the geometry of regions is distorted in order to convey the information of an alternate variable. The region area will be inflated or deflated according to its numeric value.
Legend for the Isodemographic Map of Canada.
First Edition. Printed 1971.
Based on Dominion Bureau of Statistics 1966 Census of Canada.
Areal Scale: One Inch Represents 60,000 people
Shows Census Division Boundary, Census Metropolitan Area, Selected Census Major Urban Areas, Selected Incorporated City, International Boundary, Provincial Boundary
Cover of
Isodemographic map of Canada
Authors: L. Skoda, J. C. Robertson
Print Book, English, [1972, ©1967]
Publisher: Dept. of the Environment, Lands Directorate, Ottawa, [1972, ©1967]
Physical Description:
viii, 34 pages illustrations, maps (2 folded color in pocket) 28 cm.
Page 6 from the Isodemographic map of Canada by L. Skoda, J. C. Robertson. Dept. of the Environment, Lands Directorate, Ottawa, [1972, ©1967]
Page notes: the process of Orthomorphic transformation including Figure 5. Shape deformation principal: a hypothetical situation in which map grid lines designate segments of territory with different populations,
#cartogram classic
#Isodemographic #Map of Canada
archive.org/details/WCWd...
Evident in the pin holes & damaged edges this map was in heavy use through the years.
More info. in the Isodemographic map of Canada #Geographical Paper No. 50 by L. Skoda, & J. C. Robertson
archive.org/details/3176...