Secondly, analyzed the calculation method of reasonable length of operation area, warning area, transition area, buffer zone and work area in the highway work zone, and discussed the work zone arrangement during different construction stages. 其次对高速公路施工作业区中的警告区、过渡区、缓冲区、工作区及终止区的合理长度的计算方法进行分析,并且探讨了高速公路不同施工阶段的作业区布置。