The social network analysis(SNA) method was used to study the stakeholder relationship network in infrastructure investment projects, revealing the key roles and functions of project companies, construction units, supervision units, and survey and design units in the network. Research has found that project companies play a central role in the flow of information and resources, while construction and supervision units play important roles in connecting parties and bridging information. Although the current network density is low, strengthening stakeholder cooperation, optimizing network structure, and enhancing resource sharing can significantly improve project management efficiency and collaboration effectiveness. Specific measures and suggestions are proposed to enhance the overall management level of infrastructure investment projects and the synergistic effects among stakeholders. Future research can expand the scope of stakeholders, conduct dynamic network analysis, and explore the network characteristics of different types of infrastructure projects, provide more refined management strategies.

Infrastructure investment projects  /  stakeholder  /  social network analysis