ABSTRACT This research analyses the difference between the signal control parameters from the different control policies for minimizing CO 2 emission and minimizing total delay time. First, a method to estimate the volume of CO 2 emission using probe vehicle data and traffic simulation is proposed. In this method, the volumes of CO 2 emission of each vehicle can be estimated using their travel time, travel distance and the acceleration energy equivalent, and using the CO 2 estimating method the isolated signal control parameters can be calculated, which minimize the volume of CO 2 emission. Next, these two signal control policies are compared in order to confirm in which condition these two signal control parameters become different. As a result, this study indicated that these two signal control parameters must be different but difference does not appear in some traffic situations
