Follow the authors on Twitter: @shomik_raj and @cataochoa   Smartphone apps are bringing massive changes to the taxi industry in ways that urban transport has not seen in a long while. From the US…

Shomik Mehndiratta, María Catalina Ochoa |

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 |

The other day, my colleague Roger Gorham, a transport economist working in Africa, shared with me an interesting story. He was in Lagos, meeting with stakeholders about setting up public-private…

Holly Krambeck |