On highway of travel of Taiyuan west hill, have the way of a paragraph of color, for circuit of highway cycle track special, look down at from headroom, still be like a colored ribbon between hill flap. Because west hill relief is higher, local play call this color highway " the rainbow highway on high in the clouds " . Professional caballero people express, this is " 5 a running fire " circuit, difficulty is great. Unmanned aircraft is in headroom high angle shot, chromatic highway is very grand. Between the mountain with single colour, plaster gives way of such a color, indeed very conspicuous. Chromatic highway is sinuate, colourful, be known as " the rainbow highway on high in the clouds " .