Okay, so, in preparation for working on engineering, I've been looking over Atmospherics as it exists. Before I launch into what I've noticed, let me first be clear: Electronics has done an excellent job redesigning the department and improving its efficiency. I wish I could emphasize that more but unfortunately I'm an inveterate critic, and the absence of one good thing sticks out to me far more than the presence of a hundred other good things.
Also, I am putting this down here because this is something of a community effort, and while I'm more than willing to fix the problems I see... well, better to put it out there first and get feedback, and maybe let someone more qualified (like Electronics himself) fix it if they desire.
1. Public Oxygen Replenishment Station/Visible Atmos Alert ComputersAny chance that the atmos office can get a window-door-thing out into the main hall like it has in the current map? I know it's not often used, but occasionally people who aren't engineers want their air tanks refilled or topped off.
This is necessary. Ideally it would be on the port side of Atmos, at the end of the Arrivals hall and accessible to everyone. This eliminates the need for non-Atmos/Engineer crew to access the hallway between those departments.
Unfortunately, placing it there would require a redesign of the pipes, basically shifting the entire canister + computer room over to the upper left corner (or anywhere along the left (port) side, but that's the spot with the most vacant space right now), adding windows, and moving what needs to be moved. This has the added advantage of making the atmos computers visible to the rest of the station, and the disadvantage of making them further from main engineering.
The foyer could move there as well, as there's really no need for a formal foyer between Atmos and Engineering, if that middle hallway is kept private. Regardless that single door opening into the main hall is a bad thing.
2. Mobile Air PumpsJust one thing. It's impossible to pressurize the mobile air dispensers without putting the entire distro system under pressure.
After consideration, I believe this is a significant problem. Current practice is to set the mobile dispenser loop to 4500 psi, so they refill almost instantly. The main distro loop is normally set to 300 psi (much higher and you can't work on the pipes, and a breach risks injury). The mobile air pumps will not fill properly at that pressure.
There MUST be a separate fill loop for the pumps. For the scrubbers it isn't as important, but still might as well.
The mobile pump and scrubber fill stations should ideally remain inside the atmos/engi hall (janitor would also have access). If the other change suggested above is performed, there should be room for separate scrubber and mixed air pipes to these stations.
3. No Disposal Chute. Not a significant problem, can be dealt with later.
I think that's it for atmos.
For main engineering... like I said there's also no reason for the locker rooms to be outside engineering. It looks like they were just copied from the main map so I'm going to just delete them from my working copy. I'll post... well, something (sketch/outline)... before I start working on engi/telecomms.