travel <initial direction>

In the outworld, a lot of roads twist and turn but don't require you to make
any choices. It would be nice if there were a command, travel, that you could
say 'travel east' and it would start you heading east, assuming the road could
lead east. Then, whichever way the road turned, you would follow the road,
until you had to make a choice on where to go. Naturally you would quit
walking if you run out of ep. The direction you provide as an argument only
specifies the first direction to move in. So, using 'travel east' as an
example, starting at SC, it would take you one east and then check the exits.
If there is only one valid exit that takes you to either a road or a crossing,
it would move you there. From SC you would go straight east to the first
crossing and then start heading north until you reached the old tree site and
then stop there, since now there are multiple exits and you would have to make
a choice as to which to follow.

<snip> <snip>

Wouldn't that be kind of stupid? move 1 east, then check exits for crossroads
-> head back to SC

Seriously though, this sounds a lot like a modification to walk (N, W, E, S
etc) and I kind of like the idea of following the road. But it'd have to be a
separate command, like 'travel' as you said.

Well, I had assumed the algorithm would exclude the direction you came from.