It is a completely different "intended usage", however. The "western" version is intended to move materials over extremely short paths (for long distance carri

It is a completely different "intended usage", however. The "western" version is intended to move materials over extremely short paths (for long distance carriages are traditionally used), the Chinese is to carry materials over long distances (and as mentioned in the article over winding and possibly non-paved roads). You can loosely compare the "loading" with a modern quarry/mine truck vs. a container truck, besides the different nature of the goods transported the difference is between short and long haul that more than compensates the increased loading time.