Traffic flows and air pollutant were measured concurrently with vehicle speed and wind speed, during morning peak traffic hours during the period from June to December 2001. Traffic flows were measured continuously during the morning peak traffic hours by video-technique at twelve major intersections and air pollutant levels were measured at the height of 3 metres from the road surface and analysed in the Ambient Air Quality Monitoring Mobile Laboratory. From the statistical analysis, it is evident that the air pollutant concentration levels are closely related to the traffic flow and average vehicle speed and the relationships between the air pollutant concentrations and the traffic flow and average vehicle speed are in good agreement and give a good correlation. From the study it is evident that the traffic generated air pollution in the study intersections were high and it may be attributed to the interrupted flow of traffic near the intersections due to frequent 'stop' and 'go' situations. (Author/publisher) For the covering entry of this conference, please see ITRD abstract no. E208431.
Abstract