Here is a refined modular set of roads: https://www.printables.com/cs/model/671023-modular-city-roads-set-cesty
A simple straight road. The white stripes can be printed by changing the filament for the last two layers.
Suitable for small cars like this one: https://www.printables.com/cs/model/10649-surprise-egg-3-tiny-wheel-loader
The author marked this model as their own original creation.