Traffic analysis at road intersections is an important activity in the project design and planning phases because it allows selecting the most suitable traffic requirements and site characteristics. Therefore, traffic simulation models are indispensable and useful tools to support collaborative decision-making. The building information modeling (BIM) approach shows great potential to contribute to the traffic analysis and road design improvement; however, BIM has been adopted mainly in the building sector, rather than road infrastructure projects. Therefore, this paper presents a BIM-based methodological framework for traffic analysis and simulation of road intersection design. The proposed framework has five main steps: 1) BIM models and traffic information collection; 2) BIM model configuration; 3) BIM simulation, analysis, and calibration; 4) BIM cost analysis and documentation; and 5) alternatives comparison and recommendations. The application of the proposed framework to a case study shows several BIM implementation benefits in the traffic analysis at road intersections. Some of the most prominent BIM benefits observed in the case study are a better understanding of design, improved project quality, more efficient communications, scope clarification, and speed up the design process.

道路交叉口的交通分析是项目设计和规划阶段的一项重要活动，因为它允许选择最合适的交通要求和场地特征。因此，交通仿真模型是支持协同决策不可或缺的有用工具。建筑信息模型 (BIM) 方法显示出为交通分析和道路设计改进做出贡献的巨大潜力；然而，BIM 主要用于建筑领域，而不是道路基础设施项目。因此，本文提出了一种基于 BIM 的方法论框架，用于道路交叉口设计的交通分析和模拟。提议的框架有五个主要步骤：1) BIM 模型和交通信息收集；2) BIM模型配置；3) BIM模拟、分析、校准；4) BIM成本分析及文件编制；5) 备选方案比较和建议。所提出的框架在案例研究中的应用显示了 BIM 在道路交叉口交通分析中的几个实施优势。在案例研究中观察到的一些最突出的 BIM 好处是更好地理解设计、提高项目质量、更有效的沟通、范围澄清和加快设计过程。