My apologies as the title is probably a bit confusing. I wasn't able to find anything similar to this in the SE posts or Apples HI Guidelines. I have a scenario in which I have a page that lists different events based upon which roadway is picked.
When the app page first loads it show the the default view (1) which shows the 1st roadway from the list (2) and event/s for it. The list from 2 is only populated with roadways with events so no roadways are listed without events.
To change to a different roadway, the button is clicked and it then shows the list of roadways (2), a different roadway is clicked and it then sends the necessary details to 1 to load the events related to it. Now the events on 1 can be pressed to get complete details on it and where it is on a map.
This is the current process. I got feedback from my boss, not users, that he thinks it should be just the opposite. You should see the list of roadways (2) first and then see 1 after picking a roadway. 2 does have the general back button on it if the user decides not to pick to a roadway.
Any suggestions on which approach would be best and why?