Earlier quoted context omitted.
Is that actually true from a transportation physics perspective? I can’t imagine that a curved tram/train/etc. would be able to accelerate and decelerate as efficiently as one on a straight path.
Yeah, but it wouldn't have as far to go, since the maximum distance between any two stations is half as far on a ring city of circumference d as on a linear city of length d , and you can get even shorter if you cut across the ring. To get the same area, you'd have to have slightly more center-line circumference on a ring city as linear distance on a line, but even so your transit distances are going to be shorter on…
I guess I don’t really understand the criticism, most of which seems to be “you should just build something that isn’t the thing you want to build.” There is plenty of aesthetic merit to the linear city idea on its own.
To use an example of a place that already exists: the city Łódź in Poland is situated along a single linear 4-5km street. Other neighborhoods branch off from it, but essentially the main road is the city’s layout. I really like it and think it’s a lot more interesting than it would be as a circle, even if the transit is theoretically not as optimal. There is something very aesthetically appealing about it.