Tang Chang’an 

The Grand Canal was combined with several canals thus creating China’s grandest work of infrastructure was made by the Sui dynasty which still remains to be the world’s longest artificial waterway.The segmental arch bridge of Zhaozhou accompanied the Grand Canal. The arrangement of Chang’an tracked the long standing grid tradition of the wangcheng daigram. Also, the trading communities in Chang’an built Buddhist temples, mosques and the great influence of Islamic architecture can be seen in the construction of Chang’an’s Great Mosque however with Chinese style roofs. The width of Chinese street varied from one to another since they were shaped by the bridges at the intersections beacuse of the deep drainage ditches. The boulevards provided a segregation unlike the Roman colonnaded streets. Chang’an sat on a grid of south-north streets and twelve east-west streets aligned to the cardinal points.