交通规划其本质是公共政策的安排,交通管理最为重要的是规范使用交通工具的人的行为,交通系统设计必须满足深层次的人的需求,城市交通必须从政府管理走向公共治理……诸如此类的要求,都在强调一个本质性问题——城市交通必须深入考虑研究对象的社会系统属性。现代系统科学在不断追求对系统的有效控制能力。对于城市交通来说,丧失了系统的控制能力将会是一场灾难。因此,交通工程理论必须面对的巨大挑战, The essence of traffic planning is the arrangement of public policies. The most important thing about traffic management is to regulate the behavior of people who use vehicles. The design of transportation system must meet the needs of people in deep levels. The urban traffic must go from government management to public governance. Requirements, are emphasizing an essential issue - urban transport must consider the social system attributes of the research object in depth. Modern systems science is constantly seeking the effective control of the system. For urban transport, losing control of the system would be a catastrophe. Therefore, the theory of traffic engineering must face great challenges,