cities in focus: istanbul
istanbul has the only intercontinental bus rapid-transit system in the world. with 64 million vehicles crossing it in 2005, the bosphorus bridge had become a major bottleneck for istanbul commuters traveling between europe and asia. in march 2009, the historic mega-city unveiled the world’s first inter-continental bus rapid transit line, metrobüs – easing congestion, reducing travel times and cutting greenhouse gas emissions.