SCIENTIA GEOGRAPHICA SINICA ›› 2019, Vol. 39 ›› Issue (8): 1312-1320.doi: 10.13249/j.cnki.sgs.2019.08.013

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Zoning and Regulation of Air Pollution in Hefei City Based on the Concept of Green Travel

Gu Kangkang1,2,Zhu Pengxiang1,Ning Yang1,Wang Fei1   

  1. 1. School of Architecture & Planning, Anhui Jianzhu University, Hefei 230022, Anhui, China
    2. Research Center of Urbanization Development in Anhui Province, Hefei 230022, Anhui, China
  • Received:2018-09-08 Revised:2018-11-02 Online:2019-08-10 Published:2019-10-10
  • Supported by:
    Natural Science Project for Universities of Anhui Education Department in 2018(KJ2018ZD047);Natural Science Project for Universities of Anhui Education Department in 2018(KJ2018A0504)

Abstract:

Air pollution is one of the major environmental problems in cities, which seriously affects urban human health, and traffic exhaust emission is an important cause of air pollution. Green travel is a kind of traffic concept that aims to alleviate urban traffic congestion, urban pollution and other problems by developing low-carbon, green and environment-friendly travel modes based on the requirements of sustainable urban development. The assessment of zoning and regulation of air pollution based on the concept of green travel is significance for improving quality of urban environmental and human settlement environment. Taking the downtown of Hefei China as an example, an urban air pollution assessment framework was constructed based on green travel concept, evaluation indexes of three types were green travel for public transportation, walking and bicycle, the potentiality of green travel modes to improve air pollutant emissions were analyzed by using big data. The results showed that the public transportation had a banding distribution with East-west and North-south direction in the downtown area of Hefei, and the walking and bicycle trips were concentrated in the second ring of the city with high road network density. Green travel showed strong ability to improve air pollutant emissions in the 'one nuclear and two-axis' region; there are two high-vulnerability depressions of Hefei air pollution in first ring and the core area of Binhu; the relationship was explored among green transportation and urban air pollution , it was found that there was a certain spatial trade-off relationship among of them. Finally, the downtown of Hefei is divided into four areas: green travel zone, travel restriction zone, optimized construction zone and potential promotion zonebased on coordination of green transportation, urban air pollution. Optimization strategies were proposed for the air pollution in different regions.

Key words: green travel, air pollution, zonal regulation, GIS, Hefei

CLC Number: 

  • X513