Communities’ Perceptions and Social Attitudes Towards Sustainable Infrastructural Development Projects in High Altitude Regions of Pakistan

High-altitude regions are known as corridors assisting exchange among communities, and the implementation of economic corridors in these regions provides connections and networks based on two geographical territories. For example, the China–Pakistan Economic Corridor (CPEC), established as an infrastructural development project with wide-reaching socioeconomic and environmental implications, is regarded as a significant driver of regional transformation, with the potential to generate several businesses, build institutional resilience, reduce poverty, foster a circular economy, and create job opportunities. The current study explores the perceptions and attitudes of educated adult residents in selected mountain districts regarding CPEC, which is vital to ensure wide-ranging and sustainable infrastructure development in alignment with the SDG goals, explicitly SDG 4 (Quality Education), SDG 8 (Decent Work and Economic Growth), SDG 9 (Industry, Innovation, and Infrastructure), and SDG 15 (Environmental Protection). Grounded in Social Exchange Theory, Structural Equation Modeling (SEM) was used to assess local perceptions concerning the costs and benefits linked with infrastructural development projects and concentrating on its socioeconomic and environmental outcomes in Gilgit-Baltistan, Pakistan. The questionnaire was self-administered by respondents, who documented their own responses to all items. The researcher remained present throughout data collection to distribute the questionnaires, provide verbal explanations or translations into the local language for specific terms upon request, and collect completed forms; in total, 384 respondents completed the survey. Findings revealed that surveyed educated adult respondents perceived sustainable infrastructural development favorably, particularly regarding anticipated improvements in quality of life, job creation, alleviating poverty, and the current education system, with 59.9%, 53.1%, 53.1% and 41.7% agreement, respectively. Respondents also expressed concerns about environmental protection, such as health and safety, environmental risks, and construction/transportation-related pollution at 39.8%, 37.5% and 36.7%, respectively. Backed up by SEM direct path analysis, which showed significant positive relationships between infrastructural development and educational development (H1: β = 0.439), quality of life (H2: β = 0.638), job opportunities (H3: β = 0.603), poverty alleviation (H4: β = 0.534), and environmental protection (H5: β = 0.267). Thus, all hypotheses H1-H5 were supported. This study recommends that officials and policymakers promote stakeholder investment for regional sustainability transitions, formulate regional environmental policies and governance for sustainable development to enhance the benefits of CPEC.