lists about 830km of paths in Tel Aviv (
Here's how the paths' orientations are distributed:
There are 72 bins, so each bin corresponds to a five degree angle.
Here's how I did it:
hosts dumps of pbf files arranged by country or region.
gives the relation ID of a city.
gets the city's boundaries.
slices the pbf file according to the city boundaries and filters just w/highway.
converts from lon/lat to x/y. I used this projection because it is angle preserving.
gives the animation. To get a video I slowed it down and used a Python script that fires
to capture the screen every second or so. Feel free to look at the source code
Here are some other cities. Click for full size.