中心城区平面交叉口交通改善设计探讨

城市发展导致的中心城区平面交叉口交通拥堵，是一个宏观到微观的系统性问题。从微观交通改善设计的角度，分析中心城区平面交叉口改造的工程特点；从识别核心矛盾、界定改造范围、确定改造方案、评估和反馈等方面阐述，依托工程实践，总结出中心城区平面交叉口交通改善设计的要点，可为相关工程实践与研究提供借鉴。

Discussion on Design of Traffic Improvement at Grade Intersection of Central Urban Area

The city development results in the traffic congestion at grade intersection of central urban area, and is a macro-to-micro systematic problem. From the perspective of micro traffic improvement design, the engineering characteristics of the grade intersection reconstruction in central urban area are analyzed and set forth in the aspects of identifying the core contradiction, defining the reconstruction scope, determining the reconstruction scheme, and the assessment and feedback. Relying on the engineering practices, the essentials of traffic improvement design at grade intersection of central urban area are summarized, which can be referred for the practice and study of the similar projects.