考虑投资效益、交通需求等方面因素 ,适宜采用分期分幅修建高速公路 ,针对其交通特性发生的变化 ,如何解决好初期双车道公路的交通安全 ,进行合理有效的交通组织 ,采取必要的工程措施以最大限度地保障行车安全是非常必要的。文章从分析分期分幅修建高速公路的交通特征入手 ,提出了一些改善交通安全的对策 Considering the factors such as investment benefit and traffic demand, it is appropriate to build expressways by stages and to improve the traffic safety of the early two-lane highway in light of the changes of traffic characteristics. The reasonable and effective traffic organization should be taken and necessary engineering measures taken In order to maximize the safety of driving is very necessary. Starting with the analysis of the traffic characteristics of constructing expressways by stages and sub-sections, the article put forward some countermeasures to improve traffic safety