traffic reports,traffic alerts,traffic report,real time traffic conditions,live traffic report,houston real time traffic,california road conditions

http://www.traffic.com/

A continually updated, comprehensive guide to the current traffic and travel situation across the UK, compiled by the BBC Travel Unit

http://www.bbc.co.uk/travelnews/

Highways Agency - Traffic Information

http://www.highways.gov.uk/traffic/traffic.aspx