Code used for producing public transport data collection v.1.2

Code used for producing:
"A collection of public transport network data sets for 25 cities" (v.1.2), https://doi.org/10.5281/zenodo.1186215

Code used for producing public transport data collection v.1.0

Code used for producing:
"A collection of public transport network data sets for 27 cities" (v.1.0), https://doi.org/10.5281/zenodo.1133858