Horizontally, the structure would be partitioned into a number of different zones ranging from agricultural areas to markets to housing. The outskirts of the city would be reserved for farming and the sections closer to the core would comprise residential areas, public spaces and parks.
Vertically, Tube City would be stacked to make the most of the space (which makes sense being that Dehli is one of the most overpopulated cities in the world). The top level would be dedicated to farms and open green spaces, while the lower levels, once again, would be more focused on homes, schools and green spaces.
In order to sell the agricultural products grown in the higher and further sections of the city, a strip of space called the commercial complex would be established near the core. The area would traverse the entire cross-section of the “tube” and contain markets where vendors can buy and sell goods. Farmers and buyers would be able to transport their goods from their land to the commercial complex sans auto via a metro station located on the lower level of the city, greatly reducing the dire pollution levels that currently plague Dehli.