Media Post has a news brief about Yahoo Local! making real-time traffic reports available for about 70 U.S. metropolitan areas.
The real-time data comes from a variety of sources. Yahoo! also makes traffic speed info available for about 20 cities.
In addition to finding traffic links on this page, Yahoo! also offers a shortcut. Enter traffic [city name] into the Yahoo! Search box. For example: traffic San Francisco. A direct link to the traffic info appears at the top of the results list.
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