Drivers should be using all three available methods of location on their phones to get the best location. Take a look at the attached screenshot from an android phone. You will see the option on the top says ‘high accuracy’ and it use the three method described above. Make sure that drivers have select ‘high accuracy’ for android under Settings/Location. On iPhone, there is only Location ‘On’ and the setting ‘Always’ in Privacy settings. Also ask your drivers to put their phones on the dashboard or somewhere that has a good line of sight with the sky to make tracking easier.