In Cairo, they built a ton of elevated roadways throughout the city over the past 5-6 years to relieve traffic congestion, which was (and still is) among the worst in the world.

And they often put shops under those bridges. Cafes, fast food joints, etc. I think in most countries this would not be allowed due to safety codes, but I dunno. I just don’t really see it elsewhere.

This one is a little carnival under a bridge. Rides for kids.
https://m.primal.net/KImo.jpg