Urban India, particularly metros, is a major hotspot of air pollution with a PM2.5 concentration level ranging above the permissible limits defined by the WHO for most of the year. Unsurprisingly, special efforts have been made by the Government of India in recent years to improve air quality....

In February 2003, the London Congestion Charging Scheme was introduced and in 2006 a similar policy was introduced in Stockholm. In both cases automobile traffic entering the cordon declined by about 20 percent. This book evaluates these and other similar programs exploring their implications...