目前,国内简易机动三轮车大都作为生产工具从事城乡接合部客货营运,其保有量已达百万辆,是一支不可忽视的运输力量。近年来,这类车专门从事客运的比例明显增大,因而乘坐的安全性和舒适性就显得更加重要。 At present, most of the domestic simple motor tricycles are used as production tools in the passenger and cargo operation of the urban-rural junction, and the number of them has reached one million. This is a force that can not be ignored. In recent years, the proportion of such vehicles specializing in passenger transport has increased significantly, so the safety and comfort of ridership have become even more important.