API and libraries for generating travelsheds from OSM & GTFS data.
The 'buildgraph' command, along with the appropriate json config file, will create serialized graph files that represent a geotrellis.network.graph.TransitGraph object and related information:
./sbt "run buildgraph geotrellis-transit.json"where the configuration json looks like this:
{
"loader": {
"gtfs": [
{
"name": "bus",
"path": "/var/data/philly/gtfs/google_bus"
},
{
"name": "train",
"path": "/var/data/philly/gtfs/google_rail"
}
],
"osm": [
{
"name": "Philadelphia",
"path": "/var/data/philly/osm/philadelphia.osm"
}
]
},
"graph": {
"data": "/var/data/transit/graph/"
}
}The data can then be used with the 'server' command to start up a GeoTrellis server that exposes transit information API endpoints.
./sbt "run server geotrellis-transit.json"After running the server, you can go to http://localhost:9999/ for an example client application.