Learning more about how to use texture in blender.
Wanted to show you what I bashed together, along trying to show the process for the creation.
I have bashed together two images to create the normal (1),used only of of them to create a heightmap (2), which I used for the Roughness and also as the height in the normal ( see node editor for clarity )(3).
For the base color Photoshop did the heavy lifting: combined a Stone texture, a dirt/sand texture and an asphalt texture for the final look(4).
Then decided to have some fun placing a graffiti(5) for the final result :) (6)