Re: Engineering's curved hallways
And you'd still have to contend with the Hangar Deck that is oriented the same direction as the primary hull. While it might solve the curved hallway problem, it would introduce a lot of other totally unnecessary logistical problems for the crew and Starfleet enginners in general.
USS Galileo Galilei, NCC-8888
Starbase 31, Daran V
Prima Inter Pares