yes Lt,you're no longer the only irish person in cyber startrek space,tell Riker ive arrived will ya

P.S. i dont know anything about noodles but i know a good song......

turbolifts?, or maybe just stairs

According to tech manuals they're not turbolifts.
Turbolifts don't travel diagonally.

They may be Jeffries tubes though?

Still feel as though that wouldnt be right, you could bump your head a lot when you get to the top of the shaft!

thers a hole at the top for your head

Can Jeffries Tubes run diagonally?

how should I know

They could very well be turbolifts. They could also be energy transfer conduits, some sort of ducting, internal crawl passages (But they're kind fo big for that), etc. But they're most likely turbolifts. Tech manuals have been known to have flaws. I'd go with the turbolift or transfer conduit theories.

Trek manuals are made by fans, not Paramount

Well most of mine are made by the Okudas and Rick Sternbach. I believe they know more about Star Trek than anybody. (Alive)
Paramount is a TV studio that pays for the shows to be made. They know f**k all about Star Trek!