title: How to convert GeoJSON to NetworkX graph
body: <p>I have a GeoJSON file that records a city's roads geocodes and their attributes. Sample looks like this</p>
  
  <pre><code>{"type":"FeatureCollection", "features": [
  {"type":"Feature","geometry":
  {"type":"LineString","coordinates":[[lat1, long1],[lat2, long2],[lat3, long3]]},
  "properties":{"ROUTE_TYPE":,"TOTAL_LANE":,"AADT":}}}}
  </code></pre>
  
  <p>In this case, how can I convert such JSON to a networkX graph? 
  Ideally a DiGraph (I do notice that direction information is not indicted in the JSON at all. I am fine with assuming all links are bidirectional.)</p>