Combo photos tell China's development in past 70 years (7)

Top: File photo taken in 1960 by Huang Jingda shows a police officer on duty at the Chang'an Avenue in Beijing, capital of China. Bottom: Photo taken on June 26, 2019 by Zhang Chenlin shows police officer Ren Junhan on duty at the Chang'an Avenue in Beijing. Big data and remote control have been applied in traffic flow prediction and traffic light control as traffic management today is geared to digital, intelligent and modern directions. In 1949 when the People's Republic of China was founded, the Chinese people faced a devastated country that needed to be rebuilt from scratch after decades of warfare and chaos. After decades of unremitting endeavors and dedication by the Chinese people, China has grown to be the world's second largest economy. In 1952, China's GDP was 30 billion U.S. dollars, while in 2018, its GDP reached 13.61 trillion U.S. dollars, an increase of 452.6 times. A group of combo photos give you a glimpse of what Chinese people did decades ago and what they do right now. Undoubtedly, people from all walks of life in China with hard work and wisdom have made contributions to the country's development. (Xinhua)