New analysis of four iconic cities shows that commuters can save millions of hours of travel time by shifting to bus rapid transit (BRT) systems. The report from EMBARQ, the World Resources Institute program for sustainable urban transport and planning, draws primarily from case studies conducted in Bogotá, Mexico City, Johannesburg and Istanbul. Findings from Social, Environmental and Economic Impacts of Bus Rapid Transit System point to BRT’s capacity to improve quality of life by reducing travel time, improving local air quality, curbing greenhouse gas (GHG) emissions, and preventing road fatalities and crashes. BRT is a city-based high-speed bus transit system where new and efficient buses travel on dedicated routes. As of October 2013, over 29 million passengers ride BRT daily in 163 cities, with an additional 143 BRT systems currently being implemented or expanded. BRT is a growing transport solution around the world, both in developed and developing countries.