> And then there's the transportation issues caused by it being a line instead of a circle Actually because of the line concept it makes it easier to reach any

> And then there's the transportation issues caused by it being a line instead of a circle Actually because of the line concept it makes it easier to reach any part of it using a single high-frequency and high-density transportation line. With a circle design you need a lot more transport lines to reach all areas, and not all of them can be high-frequency and/or high density.