| 摘要 |
An elevated wood and concrete racetrack includes a wooden support surface having a plurality of floor boards laid flat to form at least one straightaway, and at least one banked curve, each floor board of the plurality having two lengthwise, substantially parallel, spaced apart sides. A concrete racetrack surface is overlayed on the wooden support surface, and a racetrack support frame has a plurality of vertical support posts anchored on suitable land and a plurality of support members connected thereto for supporting the wooden support surface above ground.
|
