Because of this, the designers chose to limit our jumping and climbing abilities in order to minimize our chances of exploring dungeons backwards. But I don't want that every time. Sometimes I want to have to decide which way to go. Sometimes I want to have to stumble around for a minute, trying to figure out what to do next. That doesn't seem to happen in the Skyrim dungeons. I can't make the wrong decision. If I came in through one tunnel, then the way forward is simply the other tunnel. Nothing more to it than that.
We've all seen the doors that are barred from one side. They are fairly cool, and I think using that concept could make dungeons so much more interesting than they currently are. Dungeon design could be so much more chaotic, with winding and twisting passages, forks, intersections, and multiple levels to allow for a little exploration. Every now and then I like to make a choice about which way I'm going, I like to actually have the chance to head in the wrong direction now and then.
One way doors could easily be used to control this as well. Any passage or doorway that would lead to a shortcut prematurely could be locked from the backside. It's not an uncommon thing to do, and it's such a simple way to manage dungeon design.