Mayor Olivia Chow promises 75 more traffic agents to help ease city's congestion / Traffic has gotten way worse in these US cities, report finds / Traffic and chaos on thoroughfares / Sorry Simeon Brown, congestion charges are not the key to freeing up the roads - Simon Wilson / Cities know how to improve traffic. They keep making the same colossal mistake. / An effort to reduce congestion in the streets of Paris goes before voters on Sunday / Cities with the slowest traffic, mapped / How the city is hoping to ease Toronto’s traffic problems