Belgrade is the capital of Serbia, having around 1,6 million residents. In the field of traffic and transport, it is a city of the highest importance as a road and railway center, as a port for river and air traffic, and as a telecommunication center. It spreads over 3.6% of the territory of Serbia, and 15.8% of Serbian population lives in this city.
Also, 31.2% of all employed workers in Serbia work in Belgrade.