In the United States, at major intersections there are often signs above the lanes giving the name of the street in large letters, larger than the lettering on the small street signs that stand on the corner. These signs are very helpful in letting people know they have arrived at a street they are looking for.
It’s different in Phnom Penh. The municipality has started placing some signs above the lanes of the street, but they don’t give the name of the intersecting street. Rather they give the name of the neighborhood or a nearby landmark.
That is because Cambodian people don’t navigate by street names but by landmarks. They don’t know the names of streets. I have talked to people who don’t know the name of the street they live on. Instead they say “Go to Central Market and turn when you see the big hotel.”
Here are some samples of the signs over Phnom Penh streets.