Move against an interior wall if in a high-rise building wit

Move against an interior wall if in a high-rise building with no protective desk or table nearby
帮忙翻译成中文.
应远离内墙移动是否合理呢?
walk along an interior wall 和"move against an interior wall"有相近意思吗?
我还有一个问题呵:
有一个标志是这样的:
Toilet and Changing room
(然后是一个汽车的图案,一个人把垃圾装进车里")
No rubbish
no bin
better parks
请问它讲的是停车场还是公园?