The document discusses developing a smart urban transit system using artificial intelligence. It first covers the importance of urban transportation and its impact on city livability. Safety, efficiency, affordability, availability, convenience and sustainability are key factors for an optimal transit system. The document then reviews literature on optimal city expansion, population densities, and housing types. It also discusses the need for more sustainable transportation to improve public health and reduce pollution. Finally, it proposes designs for urban layout and transit systems, including a grid plan with metro stations spaced 1.4 km apart, to create a walkable, sustainable city.