Thirty minutes. According to bus timetable, chiping, the 70 1 bus runs every 30 minutes. Chiping District, located in the west of Shandong Province, is a municipal district of Liaocheng City, which was established in chiping in 22/kloc-0 BC. Because the county is located in Pinglu Mountain, Chiping District is the hometown of round bell dates in China, the hometown of folk paper-cutting art in China, and the most potential small and medium-sized city in China 100. It is an important topic of "The Origin of Chinese Civilization in Five Thousand Years" of China Academy of Social Sciences.