Microsoft Corp plans on Thursday to unveil a Web-based service for driving directions that uses sophisticated software to help its users avoid traffic jams, a report said.

The software technology system, called Clearflow, will provide drivers with alternative information for routes that takes into account prevailing traffic patterns, according to the New York Times.

The Clearflow system will be available as part of Microsoft's Live.com site for 72 US cities, the report said.

Microsoft was not immediately available for comment. - Reuters