MAX 2013
The winter path is made using seamless displacement material.

The material is applied to any plane (road) with a width of about 2.5 meters and the corresponding UV with a tile size of 2.5 * 12.5 meters.
Diffuse NormalMap – 8192 * 2048px;
Displacement (32-bit EXR) Ambient Occlusion-4096 * 1024px;

Vray 3.0 and above VrayDisplacementMod and VrayNormalMap (switch them for
near / far frames) VrayBlend + VrayFlakes.
Corona 1.6 and above CoronaNormal.

FBX files do not contain DisplacementMod (extruding 12 centimeters) NormalMap InputGamma should be set to 1.0 after importing FBX.

2k preview: https://www.youtube.com/watch?v=08pv63pnAfE