Estimation of CO₂ Discharge from Urban Expressway: Cell Emission Approach

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.