By means of lucubrating the planning and rebuilding above-mentioned systems and discussing the relationships within and between those subsystems, the objective of optimizing the whole urban traffic system is achieved.

• 对大城市道路系统中的步行系统、自行车道路系统和快速道路系统的规划与改造进行了深入地研究，通过对这三个系统本身内部结构关系、系统之间的衔接与配合等关系的探讨，来达到优化整个城市道路系统的目的。