MF- wrote:"catwalks" hits most of the duplicite threads
https://forums.factorio.com/forum/sea ... s=catwalks

Thanks I didn't know what it was called.

The suggestion is some kind of bridge / platform to walk over pipes. For example:
http://www.habitatmag.com/var/ezwebin_site/storage/images/media/images/gratewalk_02/158953-1-eng-US/gratewalk_02.jpg

But you can just tunnel under everything I hear you saying. Well that's true and that seems to be ...