So to summarize, I need to make a plan view for a multi-level cave where each lower-level passage lies directly underneath the upper passage. This is creating an abundance of passage overlapping in the plan view that is very hard to represent in a way that is easy to understand. If the continuing upper passage was anything significant I would of course survey it and display it on a separate plan view, but the sections are so short (less than 30 feet) that it really seems unnecessary to do so.
What I've currently done is to switch the cave walls to the overlying passage symbol right at the spot where the climbdown and survey drops are located, and then to show the cave details for the lower level from that point on. On the plan view I displayed the overlying passage as unsurveyed. Is this an acceptable solution or should I be doing it a different way? Would it be acceptable if I just ignored the passage overlapping on the plan view all together as long as the climbdown and drop distance is noted?
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And btw the profile view looks wierd because I enlarged it from half scale in order to make this image.
