Assessing sustainability performance by applying the TOPSIS method in road construction projects

The sustainability of road development projects must be evaluated holistically. These guarantees roads are constructed to endure fluctuating climatic circumstances and decreasing overall costs and environmental implications. Establishing a comprehensive methodology and framework to evaluate the sustainability level of infrastructure investment projects is crucial. This study presents a methodology that combines the Life Cycle Approach with the TOPSIS technique to conduct a comprehensive assessment of the sustainability level. The social, conventional environmental, and economic implications were initially evaluated through a life cycle method. The TOPSIS technique was subsequently utilized to rank the alternatives according to the metrics obtained from these evaluations. For validation, three pavement options in a project are compared to select the most sustainable alternative by using the proposed integrated TOPSIS technique. The results signify that option Y3 has superior sustainability performance relative to Y1 and Y2. Consequently, option 3 (normal Asphaltic Concrete) emerges as the most sustainable selection among the evaluated choices.