In an exemplary method, mobile device attribute data is received from a plurality of mobile devices over a network. The mobile device attribute data includes location data representative of a plurality of geographic locations associated with the mobile devices. The method further includes selectively aggregating the mobile device attribute data and generating traffic condition data based at least in part on the mobile device attribute data. The traffic condition data is representative of at least one traffic condition. In certain embodiments, the mobile devices include mobile telephones and the network includes a mobile telephone network. In certain embodiments, the traffic condition data is real time data. In certain embodiments, at least a portion of the traffic condition data is provided for access over the network.