This appears to be a charming micro-scale system of wildlife overpasses[1]. The macro-scale versions (overpasses above large freeways) are often less popular, a

This appears to be a charming micro-scale system of wildlife overpasses[1]. The macro-scale versions (overpasses above large freeways) are often less popular, at least in North America, due to cost and political concerns about encouraging dangerous or destructive species: wolves piss ranchers off and apex predators scare people--despite the the fact that the material risk/damage caused by such predators is statistically and financially miniscule. In light of that, it's great to see conservation efforts starting small (cheap) and benign (hedgehogs) as a way to get people involved and caring about local wildlife! While the impact of the system designed in the article seems to be less-than-rigorously understood, the effort and empathy investment by the community in the "highway" is, I think, a very real and good thing for environmental work. 1. https://en.m.wikipedia.org/wiki/Wildlife_crossing https://en.m.wikipedia.org/wiki/Wildlife_crossing