🍨Creating a city style biome🍨

I have this idea of creating a biome that instead of a forest or a desert, is a city with a lot of features like buildings and roads so instead of spawning trees you spawn custom buildings of the architecture style you want, the problem is the road system, is there is a way of creating some sort of random road network like a dungeon but instead of rooms it would be simply roads were building won't spawn? And fixing the number of mobs that the biome can spawn, something dumb like that.