疏导现场人员的英语表达可以是 "evacuate" 或 "evacuate the premises"。

"Evacuate" 来源于拉丁文 "evacuare",意为"排出、排除"。在紧急情况下,疏导现场人员就是负责把人从危险地带撤离出来。

例句:

The fire department ordered us to evacuate the building. (消防部门命令我们撤离大楼。)
Please follow the evacuation procedures and leave the premises immediately. (请按照撤离程序离开现场。)