Why do I not receive Real Time Traffic Information (RTTI) in my MINI for secondary roads with low traffic?

Real Time Traffic Information (RTTI) shows you the current traffic flow on main and secondary roads on the map of your MINI Navigation System through coloured indicators along these roads. For secondary roads with low traffic, sufficient data for reliable real time traffic information is not available from anonymised movement profiles from the mobile communications network, GPS data from vehicle fleets, police reports and data from transport infrastructure facilities.