国土空间规划中科学评价规划区域的交通基础设施发展水平，对提高规划科学性具有现实意义。利用低成本开放数据，从交通本质出发，构建由4个因子组成的评价模型，在云南迪庆藏族自治州国土空间规划中进行综合交通优势度研究。结果表明：利用开放数据可降低模型应用难度，提高评价精度和可靠性；评价显示迪庆藏族自治州综合交通优势度与其自然地理空间分布特征吻合，呈明显的“带”状分布，因此未来应优先提升澜沧江带的优势度；基于数据分析利于布局时“以流定形”，分析表明缺乏快速道路体系是迪庆藏族自治州交通供给侧的最大短板，在城市网络中其对外交通在西藏、四川方向优势度较弱，通道建设亟待加强。研究结果可为数慧赋能实现交通系统与“三生空间”融合发展和在地市级国土空间规划中应用综合交通优势理论提供参考价值。

Scientific evaluation of the transportation infrastructure development level of the planning area in the territorial spatial planning is of practical significance to improve the planning science. Using low-cost open data and starting from the essence of transportation, an evaluation model consisting of four factors was constructed to conduct a comprehensive transportation advantage study in the land spatial planning of Diqing Tibetan Autonomous Prefecture, Yunnan. The results show that the use of open data can reduce the difficulty of model application and improve the precision and reliability of evaluation. The evaluation shows that the degree of comprehensive transportation superiority of Diqing Tibetan Autonomous Prefecture coincides with the characteristics of its natural geospatial distribution, and it is obviously distributed in the form of a "belt", so the degree of advantage of the Lancang River belt should be given priority to be improved in the future. Based on the data analysis, it is beneficial to "shape by flow" in the layout. The analysis shows that the lack of fast road system is the biggest short board on the transportation supply side of Diqing Tibetan Autonomous Prefecture. In the urban network, its advantage in external transportation in Tibet and Sichuan is weak, and the channel construction needs to be strengthened urgently. The research can provide reference value for digital intelligence to realize the integrated development of transportation system and "three living spaces" and to apply the theory of comprehensive transportation superiority in territorial spatial planning at prefecture and city level.