Reconfiguring Vertical Urbanism: The Example of Tall Buildings and Transit-Oriented Development (TB-TOD) in Hong Kong

Abstract

As the world moves toward becoming 70% urbanized by 2050, urban density becomes imperative in decisions on the urban environment and living quality. This paper builds on the polycentric and “rail village” development model that applies a “concentrated” density in strategic locations to create hyper-connected, socially vibrant hubs. Notably, it proposes the Tall Buildings and Transit-Oriented Development (TB-TOD) model, a type of development that refers to vertical mixed-use developments centered on mass transit nodes, as a sustainable option for large cities going forward. The key factors that promote the TB-TOD model are the efficient use of costly land, increased population density, boosted ridership, better regional connectivity, more sensible suburban growth, and improved placemaking. The paper examines the relationship between high-rise buildings and TOD in Hong Kong. The paper identifies and compares four types of TOD model, including “plug-in” TOD in the old city; city-edge TOD; “one building” TOD; and suburban TOD in the new area. Overall, this study documents urban design prototypes applicable to cities facing the challenges of high urban density and an excessive population.