Multicriteria Decision Making for Carbon Dioxide (CO2) Emission Reduction.

The fast industrial revolution all over the world has increased emission of carbon dioxide (CO₂), which has badly affected the atmosphere. Main sources of CO₂ emission include vehicles and factories, which use oil, gas, and coal. Similarly, due to the increased mobility of automobiles, CO₂ emission increases day-by-day. Roughly, 40% of the world's total CO₂ emission is due to the use of personal cars on busy and congested roads, which burn more fuel. In addition to this, the unavailability of parking in all parts of the cities and the use of conventional methods for searching parking areas have added more to this problem. To solve the problem of reducing CO₂ emission, a novel cloud-based smart parking methodology is proposed. This methodology enables drivers to automatically search for nearest parking(s) and recommend the most preferred ones that have empty lots. For determining preferences, the methodology uses the analytical hierarchy process (AHP) of multicriteria decision-making methods. For aggregating the decisions, the weighted sum model (WSM) is adopted. The methods of sorting, multilevel multifeatures filtering, exploratory data analysis (EDA), and weighted sum model (WSM) are used for ranking parking areas and recommending top-k parking to the drivers for parking their cars. To implement the methodology, a scenario comprising cars, smart parkings are considered. To use EDA, a freely available dataset "2020testcar-2020-03-03" is used for the estimation of CO₂ emitted by cars. For evaluation purpose, the results obtained are compared with the results of traditional approach. The comparison results show that the proposed methodology outperforms the traditional approach. [ABSTRACT FROM AUTHOR]