In order to provide offline/local trip planner feature, the will need to have the streets/roads/paths from OSM. - https://docs.opentripplanner.org/en/latest/Preparing-OSM/ - https://wiki.openstreetmap.org/wiki/PBF_Format - https://app.interline.io/osm_extracts/interactive_view
In order to provide offline/local trip planner feature, the will need to have the streets/roads/paths from OSM.