Transport in Bhutan uses about 8,000 kilometers (5,000 mi) of roads and four airports, three of which are operational and interconnected. Paro Airport is the only airport which accommodates international flights. As part of Bhutan's infrastructure modernization programs, its road system has been under development since the 1960s. There are no railways and, since Bhutan is a landlocked country without major waterways, there are no ports.
Most freight is moved on eight-ton 300 hp (224 kW) Tata trucks, which are often overloaded. There is a network of passenger buses, and the most common vehicle in government and private use is the four-wheel-drive pickup truck.