What works for us may not work for US.

This is from the article, Making rush hour costly, by Maria L. La Gang in ChicagoTribune.com.

America's second-most-congested city wants to become the first to institute congestion pricing. The goal: Reduce downtown traffic, improve the environment and raise money for further transit fixes.

A similar effort failed in 2008 in New York.

London, Stockholm and Singapore already have drawn lines around key districts and charge drivers for entering at peak times. London officials believe their original system cut traffic by 21 percent and increased public transit use by 36 percent.

Find Singapore here.