This is accomplished using a python script

sudo apt-get update
sudo apt-get -y install python3-pip

sudo pip3 install rdflib

• Table of Datasets
• Most conversions are performed using the Sparqlintegrate tool, which means that the conversion scripts are sequences of SPARQL queries that make use of function extensions for dealing with heterogeneous data. The extensions are documented in this SPARQL extensions reference guide.
• The folder Datasets has example Data and a sparql query for every dataset.

• General Transit Feed Specification - Wikipedia
• TransitFeeds - Public transit feeds from around the world
• OpenTransport/linked-gtfs: Separate repository for the Linked GTFS vocabulary Can be converted and synced to OSM with: gtfs-osm-sync

Conversion to RDF:

• kasei/gtfs-rdf: Tools for converting GTFS data to RDF
• OpenTransport/gtfs-csv2rdf: Mapping script which transforms GTFS CSV into GTFS RDF (turtle, jsonld or ntriples)

• SmartDataAnalytics/SparqlIntegrate: SPARQL-based tool for the integration of heterogeneous data (JSON, CSV, XML)