The SPUI, another variant of the compressed diamond interchange, was developed in 1970 to improve traffic capacity and operations while requiring less right-of-way than the diamond interchange. (93) The configuration of a typical SPUI is shown in figure 198.
Freebase(0.00 / 0 votes)Rate this definition: A hurdle is a moveable section of light fence. Traditionally hurdles were made from wattle, but modern hurdles are often made of metal. Hurdles are used for handling livestock, as decorative fencing, for horse racing and in the track and field event of hurdling.
So it is important to teach your hurdlers to three step. One reason it is so important is that you are eliminating 9 steps from their race. If you can three step you take a total of 51 steps regardless of your speed. On rare occasion some hurdlers might take 50 steps if they take 7 steps to the first hurdle.