Strengthening Vehicle Inspection and Maintenance in Chongqing, People’s Republic of China

Abstract

This Action Plan focuses on strengthening vehicle inspection and maintenance in Chongqing, People’s Republic of China. Chongqing is located in the south west of PRC and is the fourth municipality directly administered by the Central Government. The urban area lies between two large mountains, Tongke Shan and Zhongliang Shan. The relative humidity is about 80% and the annual average wind speed is 1.1-1.7m/s; the geography and climate hinder pollutant diffusion. The urban area is divided into three parts by two rivers, with the west higher than the east. Traffic congestion is caused by the many bends and slopes along the city’s narrow roads, which often reach only seven to ten meters wide. The vehicle fleet has recently increased by 10-15%, and as these vehicles are poorly maintained, their contribution to air pollution is serious.