The Generalisation Necessity

On a map, the available space for all the cartographic representations of the objects and elements of a landscape model, is very small and decreases disproportionately from scale to scale.
Therefore a limitation on the essential map elements and objects is necessary with the reduction of an image area from scale to scale.

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Characteristics of generalisation are:

Visualise the Necessity of Generalisation

Modify the scale of the following map extract by clicking with your mouse on the + and – buttons. Show the differences between the maps to realize the necessity of generalisation in cartography; you can also try to find examples of the aforementioned characteristics of generalisation in these maps.

the necessity of generalisation (Schweizerische Gesellschaft für Kartographie 2002)