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

摘要： 共享交通作为城市交通出行的重要构成部分，凭借绿色、环保等技术优势，促使各城市积极引入。但在全国推进共享交通时，以陕西省J县为代表的一些中小城市却推进受阻。以史密斯模型为分析框架，从政策本身、政策执行机构、政策目标群体和环境因素四个维度，分析J县共享交通政策推进中的困境，并从政策供给、执行机构的完善、主体间利益的平衡和技术环境改善四个方面提出共享交通困境的破解途径。

关键词: 共享交通, 政策推进, 困境, 史密斯模型