This “distorted” map can be evaluated by the methods of Tissot
The road system introduces distance distortions, as is obvious,
but there are also areal and angular distortions and these can be measured.
In other words, cartographic theory can be used to evaluate several impacts of a road.
M. A. Tissot, 1881, Mémoire sur la représentation des surfaces…, Paris, Gauthier Villars