this post was submitted on 19 Aug 2023
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How is supposed to be interpreted? For example Helsinki is right on the coast and sure as shit hasn't as many roads going south in to the drink compared to other directions
Every road going south is also a road going north. Note all of them have rotational symmetry
It'd be interesting to know how one way streets are counted
Just read the study? They modelled street networks as undirected graphs, one-way streets are treated like all other streets, as their directionality isn't considered.
Even if they were counted accurately, usually there is another one way road nearby and which is going the other direction. So I doubt it would have a meaningful impact in the visualization.
One way streets exist!
It's about the orientation of the roads, does the road align cleanly with the compass points or does it skew diagonal? So a clean N/S orientation results in a clean N/S line. When you look closely you'll see the results are mirrored across the axis as a result.
chicago has a great lake to the east so. i dunno.
Yeah, but the measurement is over total length of the roads, not the center of downtown. Every road runs the same distance in each direction, whether or not it's a one way road.
It's histograms, according to the paper:
(A histogram shows how much there is of each kind, so here it's how much road there is per direction.)