Photo: Evan Blaser/Flickr The concentration of population in cities and their exposure to seismic hazards constitute one of the greatest disaster risks facing Peru and Ecuador. In 2007, a…

Sofía Guerrero Gámez, Georges Darido, Ignacio Sánchez D’Ocon, Naho Shibuya |

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 |