Passive control potentials of trees and on-street parked cars in reduction of air pollution exposure in urban street canyons.
This study investigates the passive-control-potentials of trees and on-street parked cars on pedestrian exposure to air pollutants in a street canyon using three-dimensional CFD. Since, according to some studies trees deteriorate air quality and cars parked roadside improve it, the combine as well as separate effects of trees and on-street parked cars have been examined. For this, different tree canopy layouts and parking configurations have been developed and pedestrian exposure for each has been analysed. The results showed, for example, tree crown with high porosity and low-stand density in combination with parallel or perpendicular car parking reduced the pedestrian exposure considerably.
Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
K V
KV
Abhijith
Department of Civil Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India. Electronic address: sharadbg@iitg.ernet.in.
Sharad
S
Gokhale
D000393:Air Pollutants / Q000032:analysis / Q000378:metabolism*; D000397:Air Pollution / Q000032:analysis / Q000517:prevention & control; D002947:Cities; D004784:Environmental Monitoring; D018986:Motor Vehicles; D010299:Parking Facilities; D014197:Trees / Q000378:metabolism*
D000393:Air Pollutants
CFD; Car parking; Exposure; Street canyon; Trees; Urban air quality; Vegetation