(Try) to take the stairway more than the elevator/lift (when going up).

其中take 换成use也可以，括号里的内容可以不要。

例句：

四是对4部客梯在周六、周日双休日实行开2部停2部，提倡多走楼梯，少乘电梯。

Fourth, run 2 and stop 2 lifts on weekends.Call on people to take stairs more than lift when going up.