Sustainable Performance Index for Bridge Infrastructure: Integrating Environmental, Social, and Economic Dimensions for Holistic Sustainability Assessment

This study presents a comprehensive evaluation framework of the Sustainable Performance Index (SPI) for bridge infrastructure, covering environmental, social, and economic aspects. The environmental dimension assesses the bridge’s impact on natural resources, pollution control, and ecological preservation. The social dimension evaluates community connectivity, equitable access, user safety, and comfort, emphasizing inclusivity and well-being. The economic dimension measures the bridge’s effectiveness in sustaining smooth transport of goods and services, reducing logistics costs, and supporting economic growth. SPI integrates these facets to provide a holistic sustainability assessment, guiding infrastructure development and maintenance towards balanced, long-term benefits for the environment, society, and economy. This multidimensional approach supports informed decision-making for resilient and sustainable infrastructure systems.