What do you think of a linear city?"The Line will be 170km long, 200m wide, 500m high and accommodate 9 million residents with no roads, cars or emissions.
Instead, high-speed trains will travel the length of the smart city in just 20 mins and people will be able to reach almost everything they need within a 5 min walk from their dwellings."
https://superinnovators.com/2022/10/saudi-arabia-begins-construction-of-futuristic-170km-linear-city-in-desert/