Nairobi to Pumwani Division in terms of boundaries. Nairobi is divided into seventeen constituencies and eighty five wards, mostly named after residential estates. Kibera Division, for example, includes Kibera (Kenya's largest slum) as well as affluent estates of Karen and Langata. Nairobi is home to the Nairobi Securities Exchange (NSE), one of Africa's largest. The NSE was officially recognised as an overseas stock exchange by the London Stock Exchange in 1953. The exchange is Africa's 4th largest in terms of trading volumes, and 5th largest in terms of Market Capitalization as a percentage of GDP. Nairobi is the regional headquarters of
Nairobi transferred from the metre-gauge trains to the CBD. Nairobi is served by highways that link Mombasa to Kampala in Uganda and Arusha in Tanzania. These are earmarked to ease the daily motor traffic within and surrounding the metro area. However, driving in Nairobi is chaotic. Most of the roads are tarmacked and there are signs showing directions to certain neighbourhoods. The city is connected to the Jomo Kenyatta International Airport by the Mombasa Highway, which passes through Industrial Area, South B, South C and Embakasi. Ongata Rongai, Langata and Karen are connected to the city centre by Langata Road, which