A method for transmitting data to a traffic information server includes obtaining, at a mobile vehicle, data including at least one of a vehicle speed and a vehicle location at a then-current time, and determining whether the data is redundant. Determining whether the data is redundant may be accomplished by at least one of comparing the data with other data previously transmitted to the traffic information server from an other mobile vehicle or determining whether the data falls within an expected range for a predetermined time interval. The method further includes transmitting the data, via a wireless communication system, to the traffic information server from the mobile vehicle if the data is determined to be non-redundant. Also disclosed herein is a system to perform the method.