Stanford torus (Star Trek: Refuge)

A Stanford torus is a doughnut shaped space station. It was one of many starfleet designed space habitats. This station can house 140'000.

Layout

 * Outer donut: Residential Use
 * Inner donut: Wildlife habition use

Purposes
The stanford toruses are there for two reasons.
 * 1: To help protect endagered species
 * 2: To house civilians of Different Species.