I may be over simplifying the subject, but it seems to me to be matter of how much skill and training does the dreamer have.

I remember a few LDs from back in the day, say 1990ish, where I had every sort of prroblem traveling as mentioned in the OP.

Sageous again may be forgetting what it was like years before his current skills were in place. I know Sageous does not want mis-information spread, and that is why he wanted to clear things up.

In the thread it should have stated that each obstical can be handled if you stick to LDing for years.

I do not need any form of map. In a dream a couple months back I was telleporting easily to locations around the world.
If I choose to use a vehical, I would not ever focus on the gages. Vehicles respond exactly as I want them to. If I decide to drive a jet ski up onto land the dream lets me do it.
I find walking any distance and keeping the roads correct is a challenge, so walks across town takes me rearranging streets and buildings. However, if I am walking or flying, it is because I enjoy it and want to interact with the dream.