Can't say I've even been expressly forbidden from laying cable on a
catwalk. Even in my most stringent experience, as long as it was neatly dressed, tied down/taped over excessively, and cables were
grouped into as few crossing as possible, the PM was happy. OTOH I've seen cable run is some places every which way, which I never allow. I personally always try to keep cable neat, run along the sides when possible, avoid crossing whenever possible, and always tie excess cable to the rails instead of just coiling it on the floor. Sometimes i have the time to tie all the runs to the railing, other shows the
rail is too packed or there just isn't time. Passing cable under a
catwalk just seems like a pain. As for cabling overhead, how are you getting it high enough so that taller members of the crew don't run into it? Catwalks often more than enough things to
duck and maneuver around, why add more? Not to mention routing up and over would necessitate the use of longer cable.
Sorry, until I work in a
venue where it is forbidden, I will continue to
lay cable on cats as neatly, cleanly and unobtrusively as possible. Catwalks should always be a restricted area, and if a run crew member MUST go up in the cats, say to
drop leaves or snow, then create a safe, illuminated,
clear and marked passage.