For many who have heard of Medellín, Colombia, the name brings to mind the drug-related violence of the 1980s and 1990s, when it was often described as the most dangerous city in the world.

Over the last decade, Medellín has worked hard to change its image. The local government is investing in education and social programs, and the city recognizes the importance of providing an integrated public transportation system as the backbone of these projects.

Medellín is becoming famous for innovative sustainable transport. Recent efforts to modernize public transit, create better public spaces and improve safety are helping transform the city. These projects include the development of bus rapid transit (called MetroPlús) and the creation of a bike-share program -- new transportation elements that are integrated with existing metro and cable car systems. In addition, the city is building 1.6 million square meters of new public space.

Medellín was awarded the 2012 Sustainable Transport Award. Streetfilms partnered with the Institute for Transportation and Development Policy to document some of the changes taking place in Medellín.