出行服务适老化政策的执行事关老年人群的生存需求与质量，也是政府公信力及其责任落实程度的重要体现。本研究基于协同学理论，结合政治系统视角，嵌入中央、民众、地方政府三大主体，构建起三位一体的动力机制模型，旨在深入剖析地方政府在政策执行过程中的内在机理。研究发现：长沙市在出行服务适老化改造方面成效欠佳，主要源于地方政府与民众、地方政府与中央之间缺乏良好的互动效果。具体表现为老年群体与政府间的反映沟通渠道不畅，以及政府自身的政策执行情况向中央反馈时存在偏差。因此，本研究建议：第一，拓展老年群体的民主反馈渠道，建立健全有效的反馈机制；第二，政府部门需强化责任落实，深化社会养老服务领域的合作，并加强工作的协调联动，以提升出行服务适老化政策的整体执行效能。

The implementation of age-friendly travel services policies is crucial for the livelihood and quality of life of the elderly, and it also reflects the government's credibility and its commitment to responsibility. Based on the Synergetics Theory and from the perspective of the political system, this study constructs a tripartite driving mechanism model involving the central government, the public, and the local government. It aims to analyze the internal processes of local governments in implementing these policies. The research reveals that Changsha’s progress in age-friendly travel services is hindered by poor interaction between local governments and the public, as well as between local governments and the central government. Specifically, communication channels between the elderly and the government are blocked, and feedback from local governments to the central government is inaccurate. To address these issues, this study proposes two recommendations: first, broaden democratic feedback channels for the elderly and establish effective feedback mechanisms; second, strengthen responsibility implementation within government departments, promote cooperation in elderly care services, and enhance coordination to boost the implementation of age-friendly travel services policies.