The scene uses Blender Internal - this is the most Export friendly shader, and plugs into UNITY with no issues.

This skate park is a set of objects that are highly modular and can be arranged in any number of different ways as you see fit. Build X-games style street areas for BMX riders or arrange them more loosely to create a very informal skate board orientated environment.

Here is some info pertaining to the file:

Models: Real world scale

Pivots: Located on the main edge of each object making snapping and positioning easy

UVW: Unwrapped (NON-Overlaping)

Objects in scene: 
1.Judges Box, scaffold with stairs 
2.Lights mounted on scaffold tower for night riding 
3.Perimeter Tiles - Plywood frames with the "park facing" side painted black 
4. Half pipe with Vert and Roll-in 
5. Quarter pipe 
6. Sub Box 
7. Launch Ramp element 
8. Wedge ramp element 
9. Grind Box element 
10. Handrail element 
11. Bowl - bulge in element (half round) 
12. Bowl - bulge out element Half round) 
13. Stairs element 
14. Hip Element 
And more

Map channels: Diffuse & Bump - keeping the scene as simple as possible

Dispatch method: File is "Packed" in Blender making textures local to the 3D file - no missing maps

Textures: Packed size: 1024 x 1024.

# Thank you Dorian Hurst for the BMX photo