revised rings

in this version,
instead of having 1 lift, 4 lifts fit into the core.
the ring is 40m wide instead of 32m
red is the shared space, yellow is the void, green is the private, magenta is public programme.also the alignments are fixed, 6m x 6m is the core, shared and void spaces are 8m x 8m and the corridore is wider than the older version: 2m.

If the corridores had ceilings that are transparent/translucent more light would go into the space around the core.
