I want to know: How often does the bus in Shenzhen b628 run?

B628 Road (Le Tong Village-Le Tong Village)

Operation time: 06:00-22:00, shift interval: 15 minutes, fare: one-vote system: 1 yuan.

Itinerary: Le Tong Village-Zhongshan Garden North-Zhongshan Garden-Nanshan Agricultural Approval Market-Zhongshan North Ring Interchange-Ma Jialong-Huijin Garden-Qilin Primary School-Renrenle-Shennan Yiyuan Interchange-Li Xiang Park-Nanshan Procuratorate-Nanguang Road-Xuefu Road-Sifang Village-Xuefu Middle-Dabanqiao-Daxin Village-Daxin Village Neighborhood Committee-Guangfa Bank-Nanshan District People's Hospital-Nanshan Procuratorate-Li Xiang

Return: Le Tong Village-Zhongshan Garden North-Zhongshan Garden-Nanshan Agricultural Batch Market-Zhongshan Park-Industrial Village-Yuquan Road-Yuquan Middle Road-Yiyuan Road Bus Terminal-Renrenle-Shennan Yiyuan Interchange-Li Xiang Park-Nanshan Procuratorate-Nanshan District People's Hospital-Guangfa Bank-Daxin Village Neighborhood Committee-Daxin Village-Dabanqiao-Xuefu Middle-Sifang Village-Yukang Garden-Nanshan Zhongjia.