关键词: 共享交通, 政策推进, 困境, 史密斯模型

Abstract: As an important part of urban public transportation， sharing traffic has been actively introduced by cities with the advantages of new technology and environmental protection. However， in the national promotion of sharing traffic， some small and mediumsized cities represented by J county in Shaanxi Province block sharing traffic. This paper takes Smith model as the research framework， analyzing the difficulties during the implementation of promoting sharing traffic policy in J county from four dimensions: policy itself， policy enforcement agencies， policy target groups and environmental factors， and it also puts forward the promotion strategy of sharing traffic from four aspects: policy supply， executive organization perfection， balancing interest groups and improving technical environment.

Key words: sharing traffic, policy promotion, difficulty, Smith model