Abstract
This paper proposes a Cell Emission Approach for estimating CO2 emission in urban expressways. The estimation models rely on traffic flow data collected by traffic detectors. Two cell-based estimation models, called as the instantaneous model and the time slice model are proposed. The instantaneous model is one of the simplest methods for estimating CO2 emission. The time slice model is more accurate model than the instantaneous model because trajectories of each vehicle are considered. CO2 emission from the Hanshin Expressway in Japan is estimated by the proposed models. The results of the estimation are represented by visualization methods.
