STUDY OF THE DIFFUSION MODE OF THE POLLUTANT EMITTED BY VEHICLES ON HIGHWAYS

Based on the diffusion formula of atmosphere, the diffusion formula of highway line-source pollutants is established according to the diffusion data measured from both sides of a highway. The analytical solutions for the pollutant concentration of limited long-line-source and unlimited long-line-source are worked out by using Green function method. The solutions take the wind near ground surface and the vertical variation of vertical diffusion coefficient into consideration. The influence of highway engineering parameters on the diffusion of the tail-gas of vehicles is analyzed by taking a freeway as an example.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10002774
• Corporate Authors:

  XI'AN HIGHWAY UNIVERSITY

  SOUTHERN MIDDLE SECTION OF THE SECOND CIRCULAR ROAD
  XI'AN, SHAN XI  China  710064
• Authors:
  • SHUNXI, DENG
  • PENG, LIANG
• Publication Date: 1997-9

Language

• Chinese

Media Info

• Features: References;
• Pagination: p. 80-4
• Serial:
  • XI'AN GONGLU XUEYUAN XUEBAO (JOURNAL OF XI'AN INSTITUTE OF HIGHWAY)
  • Volume: 17
  • Issue Number: 3
  • Publisher: XI'AN HIGHWAY UNIVERSITY
  • ISSN: 1000-2774

Subject/Index Terms

• TRT Terms: Coefficients; Concentration (Chemistry); Diffusion (Optics); Highways; Mathematical models; Pollutants; Vehicles; Wind
• Uncontrolled Terms: Vertical
• ITRD Terms: 6410: Coefficient; 7132: Concentration (chem); 6769: Diffusion; 2442: Emission; 2755: Highway; 6473: Mathematical model; 2431: Pollutant; 1255: Vehicle; 9087: Vertical; 2554: Wind
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00749565
• Record Type: Publication
• Source Agency: Transport Research Centre (CDV)
• Files: ITRD
• Created Date: Jun 26 1998 12:00AM