Sustainable practices have become the cornerstone of the transportation sector, and widely adopted by many states' transportation agencies. Sustainable practices have now become the edifice of the transportation sectors but the adoption of such practices is not fast enough to overcome the ever-increasing global demand for resources. There are numerous sustainable policies, rating systems, and most of them follow similar approaches and formats that outline the sustainability factors. This paper proposes a quantitative approach to measure and evaluate sustainable performance of the transportation sector. The paper makes an extensive analysis on carbon emissions when treated by total population and Gross Domestic Product (GDP). The evaluation focuses on the transparency of sustainability through measurement and quantification of sustainability rather than to develop standard compliance approaches. These measurement and quantification approaches would allow transportation agencies to measure and thus reduce their footprints.
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