I am trying to make a website that could use static GTFS data or data from an API, or database linked to a route planner such as OpenTripPlanner for upcoming change of transit services in my area. I want to use an unpublished GTFS and the trip planner to simulate what bus routes a user will need to take before the changes of services happen. That way the end user will be prepared and plan ahead for the day the services change.
I have some questions: is there any other people that have done this before and could give me some advise? any tutorials or documentation that would be helpful on making this project? is there a standard API format I have to follow if I need to create one? Thanks