video preview: https://youtu.be/dx3VZUyC2A8 
8k asphalt material under a layer of snow with footprints. The actual size is ~4×4 meters. The material was created using scanning by photogrammetry.
You can diversify your scene and add realism to snow scenes due to the high detail of the material.

In the scene the sample plane is 12×12 meters. Displacement height ~2cm. Used Vray HardWax SSS (Corona absorption) Vray(Corona)NormalMap
Highly detailed seamless textures:
Diffuse: 8192x8192px Normals Refraction Displacement (EXR 32-bit) AO (not connected): 4096x4096px

*When importing FBX set input gamma = 1 to NormalMap.
*Vray 4 and later Corona 7 and later
*To save RAM it is possible to reduce detail by reducing the size of images by 2 times in the photo editor.