Abstract: With rapid development urbanization, city image molding has increasingly become the core content in urban planning. The city skyline is an important factor in city image molding; however, the current design guidelines are obscure. Utilizing the city skyline along Tianjin Haihe River as an example, this study adopted the methods of 3D modeling, image extraction, internet-based questionnaire, and SPSS statistical analysis to evaluate the city skyline from the aspects of overall shape, variance of building height, number of turning points in building outline, number of levels, and proportion of levels. The results serve as a good reference for urban design guidelines.

Key words: city skyline, urban design, quantitative evaluation, statistical analysis

摘要： 在快速城镇化的背景下，城市形象成为当下城市规划设计活动的关注重点。城市天际线作为城市形象展示的重要窗口，现有相关设计导则仍尚显模糊。研究以天津海河沿岸天际线为例，从天际线整体形状、建筑高度变化程度、建筑轮廓平均转折点数、天际线层次数量、天际线层次比例以上5个方面，通过建立三维模型、提取特征图像、网络问卷调查、SPSS数据分析对天津海河沿岸天际线进行量化分析。明确城市天际线美学特征指标与评价结果的对应关系，进一步梳理得到天际线各特征的最优值域。研究结果也为现阶段城市设计导则的编制提供了新的思路。

关键词: 城市天际线, 城市设计, 定量评价, 统计分析