Roads and vehicles in a city builder where roads and vehicles don’t matter.

Hi! So I am working on this idea for a city builder and it’s about the residents of the city! You build the town and watch the residents do their stuff in your town. It’s about where they go, what service they use and stuff like this. But to make it feel like a city I added roads. Otherwise it looks strange. Empty roads are spooky so I kinda need vehicles. But.. thy don’t matter in my game. I don’t need them. They would just be decorative. And they would even be the opposite of useful because it is important to see what areas of the city are crowded and with fake vehicles driving around the town would just feel alive everywhere all the time.

Any ideas how to fix this kind of problem?