High-density, urban growing solution

This is a 12m version of a modular unit for urban or rooftop use, designed for high density communities in Asia.
There are 3 rolling benches which provide an area of 10m x 7.2m for growing with one walk way that can be accessed between or on the outside of the benches by rolling the tops which roll very easily with pressure from 1 hand.
The unique design provides room for 3000 plus lettuces and bok choy, as examples, and room under the benches for seedlings, tanks, pumps and irrigation lines.
Vining crops can be incorporated, based on the nutritional requirements of the community engaged.