title: Traffic accidents on expressways: new threat to China.
abstract: OBJECTIVE
  As China is building one of the largest expressway systems in the world, expressway safety problems have become serious concerns to China. This article analyzed the trends in expressway accidents in China from 1995 to 2010 and examined the characteristics of these accidents.
  
  
  METHODS
  Expressway accident data were obtained from the Annual Report for Road Traffic Accidents published by the Ministry of Public Security of China. Expressway mileage data were obtained from the National Statistics Yearbook published by the National Bureau of Statistics of China. Descriptive statistical analyses were conducted based on these data.
  
  
  RESULTS
  Expressway deaths increased by 10.2-fold from 616 persons in 1995 to 6300 persons in 2010, and the average annual increase was 17.9 percent over the past 15 years, and the overall other road traffic deaths was -0.33 percent. China's expressway mileage accounted for only 1.85 percent of highway mileage driven in 2010, but expressway deaths made up 13.54 percent of highway traffic deaths. The average annual accident lethality rate [accident deaths/(accident deaths + accident injuries)] for China's expressways was 27.76 percent during the period 1995 to 2010, which was 1.33 times higher than the accident lethality rate of highway traffic accidents.
  
  
  CONCLUSIONS
  China's government should pay attention to expressway construction and safety interventions during the rapid development period of expressways. Related causes, such as geographic patterns, speeding, weather conditions, and traffic flow composition, need to be studied in the near future. An effective and scientific expressway safety management services system, composed of a speed monitoring system, warning system, and emergency rescue system, should be established in developed and underdeveloped provinces in China to improve safety on expressway.
authors.affiliation: School of Transportation, Southeast University, Nanjing, China. swellero@yahoo.cn
authors.forename: Jinbao
authors.initials: J
authors.lastname: Zhao
authors.forename: Wei
authors.initials: W
authors.lastname: Deng
mesh_terms: D000054:Acceleration; D000063:Accidents, Traffic / Q000401:mortality* / Q000706:statistics & numerical data / Q000639:trends; D002681:China / Q000453:epidemiology; D004779:Environment Design / Q000706:statistics & numerical data*; D006801:Humans; D018986:Motor Vehicles / Q000706:statistics & numerical data; D017751:Safety Management; D013997:Time Factors; D014887:Weather; D014947:Wounds and Injuries / Q000453:epidemiology / Q000401:mortality