The world’s largest and first building-type rail and bus depot is currently under construction near Changi Airport, in the south eastern part of Singapore. The T301 Project was awarded to Korean construction and engineering company, GS E&C in March 2016 at the price of USD 1.4 billion. It is the largest project ever placed by Singapore’s Land Transport Authority (LTA).

The T301 Project is attracting much attention because it is the world's largest rail and bus depot and the first building-type depot. The amounts of reinforcing rods and concrete used to build the large depot reached 300,000 tons and 1.8 million cubic meters, respectively. "The volume of the reinforcing rods is 42 times more than that used for the construction of the Eiffel Tower, and the amount of concrete is five times larger than that used for the construction of Burj Khalifa, the world's tallest edifice," shared a spokesperson from GS E&C.

The T301 Project consists of a two-story subway train depot with one basement floor and a four-story bus depot on a site of 320,000 square meters. The construction work will run for a total of 95 months. The Korean builder is aiming to complete the depot in February 2024.