The REAL fundamentals: part of fantasy setting design that I never even thought about

[tshiggins]

Originally Posted by David Johnston2

Unless the turnoffs were quite close, It would be difficult to visit the same instant of time. You would have to wait for the previous turnoff to catch up with the same time frame and time it carefully unless you were immortal.

Yeah, the exact time the "exit" dumps someone out into the real world is never quite the same. The exits "drift" a bit.

The main thing I worried about was meeting one's self while on the road. The exit drift made it a lot easier to manage things, in the various worlds, themselves. I figured the exits only took travelers to significant places at significant times, in that world's history.

So, an exit would take a traveler into Rome in 44 AD, but if you wanted to visit Britannia, you'd have to make your way there, "cross country," since the road had no exit to that place, at that time.