Remove points from the shapes of a GTFS file in order to reduce its size. It uses Douglas-Peucker algorithm internally.
simplify_shapes(gtfs_data, tol = 0)A list of data.tables read using gtfs2gps::read_gtfs().
Numerical tolerance value to be used by the Douglas-Peucker algorithm. The default value is 0, which means that no data will be lost.
A GTFS data whose shapes is a subset of the input data.