How can I extract certain data from GTFS data?

30 September 2020 0 1K Report

I am doing a research project and I need

- average travel times between stops of a bus network

- Max and Min headway

Is it possible to extract these from GTFS data? If yes, how? I can open the data in Excel but I do not know how to extract what I need.

I would appreciate it if someone could help me. Thanks

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