Dhaka is one of the fastest-growing megacities in the world. A population of just 3 million in 1971 has ballooned to 18 million today. This unprecedented urban growth has resulted in a city more densely inhabited than Tokyo, Shanghai, Mumbai, or any other major city (Robert Gallagher).
The capital's growth partially represents the progress of the Bangladesh economy, which has grown atover 6 percent annually (7th Five Year Plan). The city's transport system, however, hasn't kept up, and Dhaka now has some of the worst traffic congestions in the world.