Traffic Forecast for EMFAC-HK

In Air Quality Assessement for Planning Application, EMFAC-HK model is required to estimate the vehicle emission rates and inventories of exhaust, carbon monoxie, oxides of nitrogen and particulate matter.

For the traffic data inputs to EMFAC-HK model, vehicle fleet has to be broken down into 16 vehicle classes. In the light of this, our traffic modeling team has developed a GIS based traffic model to analysed the traffic data collected on site, trip generation and distribution based on Travel Characteristics Survey 2002 Final Report, and to varify the traffic data with The Third Comprehensive Transport Study, the Annual Traffic Census and the BDTM traffic model published by Transport Department.