Weifang traffic police department. According to the guidelines for handling truck passes, we can know that the truck passes in Weifang Fangzi District are handled by Weifang traffic police department. Weifang, formerly known as Weizhou and Weixian, also known as Du Yuan, is a prefecture-level city under the jurisdiction of Shandong Province, a national second-class big city, and a regional central city of Shandong Peninsula urban agglomeration confirmed by the State Council.