Nairobi traffic jam. Photo/ nation.co.keNairobi’s traffic congestion has been ranked the second-worst city in the world.This is according to Serbian website numbeo.com, the 2017 Traffic Index which listed Kolkata in India as the most congested city globally.Mumbai ranked third, followed by Jakarta (Indonesia) and Manila (Philippines).The traffic Index is a composite index of time consumed in traffic due to commuting to work, estimation of time consumption dissatisfaction, carbon dioxide consumption estimation in traffic and overall inefficiencies in the traffic system.On average, Nairobians spend 62.44 minutes in traffic while Kolkatans spend an average of 68.86, Mumbai 60.11, Jakarta 56.98 and Manila 56.77 minutes.Nairobi leads in the top five cities in Africa with the worst traffic, followed by Cairo in Egypt (51.56 minutes) and South African cites Pretoria (49.00), Johannesburg (45.15), Cape Town (44.15) and Durban(53.12).

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