City navigation lights / City navigation lights

When they arrive in a strange city, the urban environment are not familiar with, language communication
inconvenience, as in a maze, perhaps near the street is the destination, but I don't know the location. City
navigation lamp is using each street lamp fixed position location and street lamps light source, the ground
projection map image and anchor point, multiple navigation lights of a public navigation system, lost to know their position and surrounding road information quickly to arrive at the destination.