Group accident data by OSM intersection

[ramyaragupathy]

Per chat w/ @emmagras, grouping accident data by OSM intersection would help us get good insights on the data.

Steps

• Extract all OSM intersections
• Find the number of accidents happening around each of these intersection
  • Turf might help?
  • For those happening along a stretch, associate it to the nearest intersection
• Generate an output with accident data grouped by OSM intersection

cc @arunasank @maning

[emgrasmeder]

For those happening along a stretch, associate it to the nearest intersection

I think you could also use something like probematch to match accidents to an OSM way if it is sufficiently far from an intersection.

[geohacker]

I've a pretty basic tile-reduce script that matches to OSM ways using OSM QA Tiles here https://gist.github.com/geohacker/f4d29deaaebd1c7949bb3baddf05bad5