Environmental impact assessment of employing intelligent transportation systems on carbon dioxide (CO۲) emissions in Iran (Case Study: Karaj-Chalous axis)

Background and objective: Transportation is the driving force needed to achieve the goals of economic development and create the well-being of human societies. Modern life requires growth and expansion of the movement. The present research is applied in terms of purpose-based classification. The idea of applied research is to develop applied knowledge in a particular field. This study aimed to estimate the environmental effects of reducing CO۲ emissions by using intelligent transportation system (ITS) in Iran.Materials and methods:  This research is descriptive-correlational in terms of method and nature. The statistical population of this study is the vehicles traveling during the eight busy days of September from ۱ am to ۰۰:۰۰ in the Karaj-Chalous axis in ۲۰۱۹ during the study time. No other specific sampling was performed. All calculations and analyzes were performed using Excel and ۱۰Eviews software.Results and conclusion: The results revealed that the application of the intelligent transportation system had decreased travel time on the Karaj-Chalous axis and, therefore, reduced carbon dioxide (CO۲) emissions. The outcomes indicated that the use of the ITS during the eight days of the research had decreased ۱۰,۱۲۹ tons of carbon dioxide emissions in the Karaj-Chalous axis.