Wow, Dubai got pwned by that Rainstorm. You can really test the integrity of a City by how well it handles floods. New York cleared that shit within a day or 2. Adequate sewage system is beneficial but are costly to integrate into a city and actually requires engineering skills. Places with 3rd world medieval engineers like China and Dubai are glass cannons of a nation.

https://www.youtube.com/shorts/tL4kKquSsbU