中文摘要：

为提高平面交叉路口的通行能力,基于中国城市道路交通设计理论与方法,运用软件工程的思想完成城市道路交叉口计算机辅助设计系统的设计与实现.系统的数据结构设计合理,能为未来交通控制方案的生成和仿真评价软件的开发提供接口.应用实例表明该系统内核模型符合我国道路交通的实际情况,能大大提高道路平面交叉口设计的效率.

英文摘要：

To improve road capacity, the computer aided design system for urban road intersections is designed and developed with software engineering idea, which is based on traffic design theories and methods for Chinese urban roads. Its data structures are designed reasonably, which can provide interfaces for the generation of traffic control scheme and development of traffic simulation and evaluation software. An example shows that the core models are consistent with the characteristics of Chinese urban roads and the efficiency of plane road intersection design can be improved greatly.