Aggregate plane routes from realtime ads-b data generated by dump1090.
git clone git@github.com:morganherlocker/plane-feed.git
cd plane-feed
npm install
dump1090 | node index.js
This will create hourly geojson files with aggregated route data in ./out. Each LineString has properties containing arrays of altitudes (feet) and times (HH:MM:SS) corresponding to each coordinate.