Responsible innovation in infrastructure projects can promote the sustainable development of infrastructure projects where the strategies of the stakeholders involved have a significant impact on this process. This paper constructs a tripartite evolutionary game model including the government, focal enterprises, and the public to simulate and analyze their behavioral strategies and the sensitivity to relevant influencing factors at different phases of infrastructure projects. The results demonstrate that the government acts as a leader in the initial phase, and gradually evolves into the role of guardian in the intermediate and operational phases. Lower supervision costs, heavier penalties, and public participation can promote responsible innovation by focal enterprises and responsible supervision by the government, while higher incentive subsidies will generate the focal enterprises' behavior of “defrauding subsidy.” A three-dimensional framework for responsible innovation in infrastructure projects is developed based on the research results, covering the project life cycle, stakeholders, and responsibility and benefits, which embody the coupling mechanism of infrastructure projects’ responsible innovation.

基础设施项目中负责任的创新可以促进基础设施项目的可持续发展，其中所涉利益相关者的战略对此过程具有重大影响。本文构建了包括政府，重点企业和公众在内的三方演化博弈模型，以模拟和分析其行为策略以及在基础设施项目不同阶段对相关影响因素的敏感性。结果表明，政府在初始阶段担当领导者角色，并在中间阶段和运营阶段逐渐演变为监护人。较低的监管成本，较重的罚款和公众参与可以促进重点企业负责任的创新和政府的负责任监管，而较高的激励补贴将使重点企业产生“欺诈补贴”的行为。基于研究结果，建立了基础设施项目负责任创新的三维框架，涵盖了项目生命周期，利益相关方以及责任与收益，体现了基础设施项目负责任创新的耦合机制。