This is not an issue most players will run into but while many parts of the city are scaled representations of a larger theoretical space, there is some weirdness regarding altitude because outdoor rooms are only ~3m high. This works okay (if a bit short) to represent building storeys but starts to break down really quickly when its extrapolated to the in-game verticality, and unlike the horizontal dimensions of the city that have a large handwaved outer area that players cannot visit, every vertical slice of the city is visitable and measurable including the roof.
In practice this doesn't matter much as long as pilots don't think about the ramifications of their altitude readings, and it can be dealt with a 'don't think about it too hard' resolution, however I think this could really easily be rectified by simply adding a 4X Multiplier to altitude read-outs on the UI for flying vehicles and robots. Nothing mechanical ends up being changed, no gameplay is effected, and in a stroke the city becomes measurably large enough to match its canonical size.
LEGEND