I imported the terrain and aligned the terrain to the grid to get the shape of the floor, then added all the objects, including the road surface.
The result is a full version of the Toban highway (with the exception of landscape and forest files). All objects and their corresponding drawings and textures present on the level were created by Image Space Incorporate, and all rights belong to them. Thanks to ISI!

Here you will find all 4 configurations with the possibility of reverse and smooth start.