I'm trying to find out if there's a good way to test best travel routes in Alaska that involves land, sea, and air options. I've worked with Network Analyst so I know how to make and analyze a road network dataset, but I'm wondering if there's a way to include air routes and ferry routes as well??
Thinking I could fudge it a little by determining the distance and average speed of the plane and ferry options and draw that as "roads" in the network dataset. Then I'd classify them as different types of transportation.
Any other more elegant ideas?