Pros and Cons of the GPS

As I said at the last talk, GPS has following advantages;
First, it provide the way to go the target place. We can go anywhere using GPS even though we don't know the roads and have the maps around them. Second, we can get the information about traffic conditions. We can bypass the traffic-jam and go fast. Third, it gives the information about the location of speed surveillance cameras. We can drive evading from monitoring of the police-office.

However, GPS has some disadvantages;
In the underground or very high places, it gets mis-information about the location. Additionally, most drivers depend on the same guidance of the navigations, and that aggravate thes traffic-jam. Some drivers misuse the information about the location of speed surveillance cameras and they tend to enjoy over-speed. That is, it can be the cause of the traffic accidents.