system
Given the following post, respond as if you're commenting on Reddit:
human
In Babylon 5, many of the floors are visibly curved - but should all floors be curved?

Many of the scenes show a huge curved inner floor - are all the inner floors aimed so that their bottom is facing outward for gravity - but at what point does that stop, and you start installing flat floors?

It seems the middle sections (where C&C is) would be difficult to set up - and transitioning from one section to another would be hard.
gpt
Part of it is simply a matter of perception; the further you get from the outer hull, the smaller the radius of the station, so the curve is more visibly pronounced to the naked eye.

The other part is that the nicer areas of the station - the parts you are more likely to see on Interstellar News Network reports - are usually closer to the outer hull, where many of the rooms are installed with flat floors. The curve there is gradual enough, and the rooms so constructed small enough, that the volume of the station that is sacrificed is small.

Critical facilities such as the C&C are set up that way for practical reasons; pretty much every species in the galaxy is used to level floors, and they are easier to navigate in a crisis.

As for transitioning from one level to another, the lifts that go between levels have independent gyroscopic controls that line them up with their destination. Travelling by access ladders in an emergency can be a nauseating experience, though.