In the Great Northwest we rely on the ferry system quite often. the location to find times and price is pretty plain to put it nicely. Although there is tons of information on the public site, we envision a mobile friendly site with apple watch capabilities. A site that will remember the boats you ride and will show the next available sailing every time the user opens the app.
Some say the magic is in the details. And there is more secret details available to increase the chances of making this app a winner. All that is needed is a little funds to get this app created and you can start monetizing the app through ads on a free version and building a valuable user base.