The safety man-technology - engineering is abranch of man-technology engineering. 安全人机工程学是人机工程学的一个分支。
Since monotony has proved to be a safety hazard, traffic engineering even includes the landscape of the borders of the road. 由于景观单调已证明是对交通安全的一大威胁,交通工程学还包括高速公路两边的景观设计。