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Introduction {#intSec}
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The spatial distribution of the population in a country is typically far from homogeneous, but rather exhibits fractal patterns. Specifically, this has been investigated for Great Britain and the United States [@aby1; @aby2] and for Finland [@koski]. It is pointed out in [@aby1; @koski] that fractality has important implications for the design of wired telecommunication networks in the sense that the number and extent of various levels of hierarchy should be adapted to the fractal geometry. A trade-off is involved in determining the optimal number of levels. Using few levels has the advantage that most access points can be connected by a small number of hops. However, this comes at the cost of having to install a cable network of large total length. Indeed, a high-level node has to be connected to a large number of low-level nodes in order to guarantee connectivity. Vice versa, using a large number of hierarchies, one may be able to reduce the length of cables substantially, but this comes at the cost of increasing the number of hops it takes a low-level node to reach the topmost layer of hierarchy. A related cost analysis for hierarchical spatial networks is provided 