采用类比的方法 ,在电学理论与交通流理论中建立一种同构映射 ,并利用这种同构关系将电学理论的结构推广到交通理论中 ,引入了交通场的概念 ,将电路分析方法应用到公路网交通的研究中 ,提出了一种彻底摆脱OD调查的新方法 ,并对模型进行了实例验证 ,分析检验了该方法的可行性 Using the analogy method, an isomorphism map is established in the theory of electric flow and traffic flow theory, and the structure of electric theory is extended to the traffic theory by using the isomorphism relation. The concept of traffic field is introduced and the circuit analysis method is applied In the research of road network traffic, a new method to completely get rid of OD investigation is put forward. The model is verified by examples, and the feasibility of the method is analyzed and verified