Photo: Ben Eijbergen With a metropolitan population approaching 23 million, Lagos is the economic engine of Nigeria and one of the largest cities on the African continent. Rapid growth,…

Roger Gorham, Benedict L.J. Eijbergen, Ajay Kumar |

Follow the authors on Twitter: @chyiyunhuang and @shomik_raj   A recent trip to Addis Ababa really brought the imperatives of transit-oriented development as a complement to mass transit…

Chyi-Yun Huang, Shomik Mehndiratta |