A GPS navigation will give you an almost exact location of your car with respect to the street. The problem with phil streets is that most of them don't have street name signs or they are being blocked or could not be seen. Which is why it is sometimes hard to use the paper map plus the hassle of trying to read the map while driving which i don't recommend especially in our roads. A GPS navigation can direct you to your location althought it is not without errors. giving you freedom to drive safely.