Stops are converted to POINT sf data frames. Shapes are converted to a
LINESTRING data frame. Note that this function replaces stops and shapes
tables in gtfs_obj.
Arguments
- gtfs_obj
- gtfs feed (tidygtfs object, created by - read_gtfs())
- skip_shapes
- if TRUE, shapes are not converted. Default FALSE. 
- crs
- optional coordinate reference system (used by - sf::st_transform()) to transform lon/lat coordinates of stops and shapes
- quiet
- boolean whether to print status messages