• Journal of Atmospheric and Environmental Optics
  • Vol. 19, Issue 3, 333 (2024)
HU Tian1,*, LOU Chunhui2, and WU Yarui2
Author Affiliations
  • 1College of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710054, China
  • 2College of Geomatics, Xi'an University of Science and Technology, Xi'an 710054, China
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    DOI: 10.3969/j.issn.1673-6141.2024.03.006 Cite this Article
    Tian HU, Chunhui LOU, Yarui WU. Influence of vehicle restriction on air quality in Xi'an and its model analysis[J]. Journal of Atmospheric and Environmental Optics, 2024, 19(3): 333 Copy Citation Text show less
    Statistical chart of average monthly change of AQI in Xi'an from 2016 to 2020
    Fig. 1. Statistical chart of average monthly change of AQI in Xi'an from 2016 to 2020
    Annual average change of pollutant mass concentration in Xi'an from 2016 to 2020
    Fig. 2. Annual average change of pollutant mass concentration in Xi'an from 2016 to 2020
    Annual mean change of CO mass concentration in Xi'an from 2016 to 2020
    Fig. 3. Annual mean change of CO mass concentration in Xi'an from 2016 to 2020
    3D scatter plot of AWS, MT and RH
    Fig. 4. 3D scatter plot of AWS, MT and RH
    3D scatter plot of AQI, RH and MT
    Fig. 5. 3D scatter plot of AQI, RH and MT
    3D scatter plot of AQI, MT and AWS
    Fig. 6. 3D scatter plot of AQI, MT and AWS
    城市开始时间限行时段限行方式

    2020年汽车

    保有量/(万辆)

    北京2008-07-20工作日03:00―21:00按尾号单双限行603.20
    南昌2009-06-22工作日07:00―21:00按车牌尾号每周限行1天127.40
    长春2010-05-04每日06:00―21:00按车牌尾号每月限行3天207.00
    兰州2010-09-18每日07:00―20:00按车牌尾号每月限行6天114.49
    贵阳2011-09-19工作日07:00―20:00按车牌尾号每周限行1天190.00
    杭州2011-10-08工作日高峰段按车牌尾号每周限行1天281.70
    成都2012-10-08工作日07:30―20:00按车牌尾号每周限行1天545.70
    西安2016-11-04工作日07:00―20:00每日限行两个车牌尾号373.60
    Table 1. National traffic restriction management policy in major cities
    开始日期结束日期限行时间限行方式
    2016-11-042017-01-26工作日07:00―20:00每日限行两个车牌尾号
    2017-11-202018-03-15工作日07:00―20:00每日限行两个车牌尾号
    2018-04-162018-09-30工作日07:00―20:00每日限行两个车牌尾号
    2019-03-182020-03-13工作日07:00―20:00每日限行两个车牌尾号
    2020-11-16工作日07:00―20:00每日限行两个车牌尾号
    Table 2. Xi'an motor vehicle restriction policy
    Connected functionsParameter test of variable TRParameter test of variable warm
    Gaussian distribution0.01057 *< 2.2 × 10-16 ***
    Poisson distribution< 2.2 × 10-16 ***< 2.2 × 10-16 ***
    Table 3. Coefficient significance test
    Variable nameValue after indexation
    Intercept3203.640441
    TRyes0.958764
    Warmyes1.555424
    Spl (wind, e = 3)0.905579
    Spl (temperature, e = 3)1.001163
    Spl (humidity, e = 3)0.998148
    Spl (DATE, e = 3)1.000000
    Table 4. Poisson regression indexation table