Lusaka is the capital and largest city of Zambia. It is one of the fastest-developing cities in southern Africa. Lusaka is in the southern part of the central plateau at an elevation of about 1,279 metres (4,196 ft). As of 2019, the city's population was about 3.3 million, while the urban population is estimated at 2.5 million in 2018. Lusaka is the centre of both commerce and government in Zambia and connects to the country's four main highways heading north, south, east, and west. English is the official language of the city administration, while Bemba, Tonga, Lenje, Soli, Lozi, and Nyanja are the commonly spoken street languages.

The Great East Road is a major road in Zambia and the main route linking its Eastern Province with the rest of the country. It is also the major link between Zambia and Malawi and between Zambia and northern Mozambique. However, the route does not carry as much traffic as many of the other regional arterial roads and between the main cities it serves, Lusaka and Chipata, it passes through rural and wilderness areas. In Lusaka the road forms the main arterial road for the eastern suburbs. The entire route from Lusaka to Chipata and the border with Malawi is designated the T4 road on Zambia's road network.