Yutao, also known as Qianlong Yu Dao, Qianlong emperor six Jiangnan, local officials specifically designed for Ying driving. This road is a small brick brick brick piece of "people" type, 

is the original Royal Road features, because the emperor is above the million people, so at the foot of these bricks all arranged in a "people "The word, a symbol of the supreme position 

of the emperor.