Method and system for adaptive GNSS sampling rate to improve mileage reporting accuracy of a road usage charge (RUC) system

A system for determining a distance driven by a vehicle, comprising:

• at a mobile device in the vehicle, the mobile device is configured to:
• determine a speed of the vehicle;
• when the speed of the vehicle is above at or above a first speed threshold value, the mobile device samples the location of the vehicle at a first rate;
• when the speed of the vehicle is below the first speed threshold value, the mobile device samples the location of the vehicle at a second rate such that sampling at the second rate occurs more frequently than sampling at the first rate;
• record each location sample to produce a location record comprising a plurality of location samples;
• and
• determine distance driven by the vehicle by summing the distance offsets between successive location samples of all of the plurality of location samples.