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机动车行驶里程数据是计算机动车排气污染的重要参数,也是机动车模型重要的修正参数,直接影响机动车大气污染物排放清单建立的准确性。此研究利用杭州市年检数据分析杭州市机动车行驶里程分布规律,结果表明,超过50%的机动车车龄在6年以内,10年以上车龄的车辆占比是较少的,大部分柴油货车占比不到1%;所有车型机动车年行驶里程与车龄都呈对数递减关系,随着车龄的增加,机动车年行驶里程减小;杭州市小型汽油客车、小型柴油客车、中型柴油客车、重型柴油客车、轻型汽油货车、轻型柴油货车、中型柴油货车、重型柴油货车的年均行驶里程分别为15002.61、23616.94、34525.44、44854.76、19125.48、21259.69、28279.82、44098.13 km/a。
Motor vehicle mileage data is an important parameter of vehicle motor vehicle exhaust pollution, but also an important motor vehicle model modification parameters, a direct impact on the establishment of vehicle air pollutant emissions inventory accuracy. The study uses Hangzhou annual inspection data to analyze the distribution rules of motor vehicle mileage in Hangzhou. The results show that more than 50% of the vehicles have a vehicle age less than 6 years and less than 10 years of age. Most of the diesel vehicles The proportion of trucks accounts for less than 1%; all models of motor vehicles mileage and car age have a logarithmically decreasing relationship with the increase of car age, motor vehicle mileage decreases; Hangzhou small gasoline buses, small diesel buses, The annual average mileage of medium diesel buses, heavy diesel buses, light gasoline trucks, light diesel trucks, medium diesel trucks and heavy diesel trucks are respectively 15002.61,23616.94,34525.44,44854.76,19125.48,21259.69,28279.82,44098.13 km / a.