Peartree is a library for converting GTFS to directed graphs.
Peartree is a library for converting GTFS feed schedules into a representative directed network graph. The tool uses Partridge to convert the target operator schedule data into Pandas dataframes and then NetworkX to hold the manipulated schedule data as a directed multigraph.
Above, an example of multiple Bay Area transit operators being incrementally loaded into Peartree.
pip install peartree
See a full notebook at this gist to see a simple, step-by-step iPython Notebook pulling in an AC Transit GTFS feed and converting it to a NetworkX graph.
import peartree as pt path = 'path/to/actransit_gtfs.zip' # Automatically identify the busiest day and # read that in as a Partidge feed feed = pt.get_representative_feed(path) # Set a target time period to # use to summarize impedance start = 7*60*60 # 7:00 AM end = 10*60*60 # 10:00 AM # Converts feed subset into a directed # network multigraph G = pt.load_feed_as_graph(feed, start, end)
I’ve yet to produce a full how-to guide for this library, but will begin to populate this section with any blog posts or notebooks that I or others produce, that include workflows using Peartree.