Can navigation systems help us control driving speed?
A)Only when driving at speeds higher than 100 km/h.
B)No, navigation systems do not help control speed.
C)Yes, although the main source of information must always be the speedometer.Correct
Modern navigation systems can display information about the speed limits on the road we are driving on, which helps us maintain safe and legal driving. However, the vehicle's speedometer remains the main and most reliable instrument to control our driving speed. Navigation systems are a useful complementary tool, but they should never replace the direct reading of the speedometer.