Assessment and ranking of different vehicles carbon footprint: A comparative study utilizing entropy and TOPSIS methodologies

Abstract

The world is currently grappling with the detrimental effects of escalating pollution stemming from exhaust gases emitted by vehicles, exacerbating environmental degradation and posing severe health risks. To mitigate this crisis, leveraging appropriate technologies capable of curbing emissions is imperative. A recent study undertook a comprehensive assessment, comparing the carbon footprint of various vehicles, considering parameters such as emissions in battery manufacturing and fuel consumption. Employing entropy and TOPSIS methodology, the analysis assigned weights and rankings to these criteria and vehicle alternatives. Results indicated that battery manufacturing emissions carried the most significant weight (81.91 %), followed by emissions from fuel consumption (15.99 %). Hybrid vehicles emerged as the most favorable alternative, closely followed by biodiesel, exhibiting the lowest carbon emissions including CO, CO2, and UBHC. This study offers invaluable insights for future decision-makers in the transportation sector, facilitating informed choices towards adopting environmentally sustainable vehicles, thereby contributing to a greener and healthier future.