This project visualizes every track in Iowa which has been mapped in OpenStreetMap. The vast majority of the tracks were identified and mapped by me using a combination of Overpass queries and the Strava Heatmap. View the data at https://karsonkevin2.github.io/Iowa-Tracks/

How to load custom data

1. Add data to OpenStreetMap
2. Fork this project
3. Use Overpass Turbo to search for data. For this example,

[out:json][timeout:25];
{{geocodeArea:iowa}}->.searchArea;
(
  relation["leisure"="track"]["sport"="athletics"]["athletics"!~".*"](area.searchArea);
  relation["leisure"="track"]["sport"="running"]["athletics"!~".*"](area.searchArea);
);

out body;
>;
out skel qt;

3. Select export and then download the GeoJSON file
4. Use Mapshaper to convert the GeoJSON file into a TopoJSON file
5. Rename both of the files to pools and overwrite the files in your forked directory
6. Set up a page for the project, utilizing the GitHub tutorial
7. Visit https://YOURNAMEHERE.github.io/REPOSITORYNAME/

Data assumptions

• Not all objects have a surface=* tag. The rendering will be based on
  • No surface=* = tan
  • surface=concrete or surface=asphalt = grey
  • surface=tartan = ?color?
• Rubberized tracks will be tagged surface=tartan and have a colour=*
  • colour=* will neatly map onto an html colour
  • If colour=navy color is remapped to blue
  • If colour=* is not specified, it will default to black
• All tracks will be mapped as inner/outer relations. Tracks mapped as ways and more complicated relations will cause errors.