BANGKOK/HANOI -- Congestion pricing is gaining traction in big Asian cities, with the capitals of India, Thailand and Vietnam moving forward with plans to charge fees for cars driven in central districts.
Initiatives in metropolitan areas seek to ease traffic and curb pollution

Daily traffic in central Bangkok reaches 700,000 vehicles a day. (Photo by Ken Kobayashi)
BANGKOK/HANOI -- Congestion pricing is gaining traction in big Asian cities, with the capitals of India, Thailand and Vietnam moving forward with plans to charge fees for cars driven in central districts.