Re: Yet another thread on the Yosemite Decimal System & rating backpacking passes
Posted: Thu Mar 31, 2022 10:59 am
I'll expand upon & add on to my remaining questions from 3 days ago (feel free to refer to the numbers when replying):
1) Are we good on sliding and collapsing for traction (focusing only on what's most consequential or troubling) or would having 3-4 labels for the entire range make sense? Traction: good, fair, poor, deadly, etc. I feel like this is going to be messy though I can understand the appeal of it.
There could be an explanation that stable to slightly loose to wobbly is the default state and then focus on sliding and collapsing.
2) Do we want just X, R & X, or just the whole movie spectrum rating for exposure? I lean fatally exposed and exposed but could go back to the originally proposed Class 5 movie rating system. I feel like PG and R are going to be messy. If do stick with the upper two levels, do R and X still make sense without G and PG? Options:
exposed: some probable injury and uneasy
fatally expoed: death or evac
R > X
XR > X
X > FX
X > XF
X > F
It feels a little weird to have X as the bottom option, as that's the highest in the informal Class 5 movie rating system, but if we tack fatal onto it that makes sense. EX > FX?
Update: what about something like heights & exposed?
H - heights? - accidents could result in serious injury, in general some uneasiness associated with heights maybe be felt even if route is fairly safe.
X - exposed - accidents would likely result in death or evac
I'm probably overthinking this. Just keeping it R and X and then explaining PG is the default state seems fine?
3) Any more modifiers? I feel like a routefinding modifier would require a written description of the routefinding, so don't mind not adding it. Holds snow/ice year round seems valid - a couple passes are labeled ice ax / crampon and I avoid them because I don't want to haul an extra 3lbs for 10 days. Not sure it's worth breaking out, especially as a lot of snow will turn into sliding if these winters keep up.
4) Any better short human readable / flatlander name for 2.5? I was a bit uneasy when I introduced this, but it gets the point of "a new class" while slotting into the existing system. Currently Class 5 is the only class with minor/sub classes in it, which is a slightly different usage than this. Its honestly more like 2.8 than 2.5, but at least .5 is in the middle and feels a bit more obvious. 2+/3- felt more precise, but is a mouthful.
If I didn't have a sliding for terrain we could call it 2S for scrambling. 2M? 2+? Just keep it 2.5?
5) I feel like unpacking the acronyms is a good thing, should that be formalized or left to "just use all the pieces". I'd go "motion > terrain > exposure" as the order for shorthand - so 2 SX etc as uneven ground that's sliding and exposed makes sense to me. I'm not sure I'd want to write out all the unpacked sentences that can come out and expect others to follow that. IMO as long as the Class 2S, 2R, 2.5 & Class 2X, 3R etc is consistent I'm not worried about the rest.
Does it matter if somewhere there's a
Ursula:
Class 2X, 3R - Some fatally exposed uneven ground and exposed simple climbing
Class 2X, 3R - uneven ground fatally exposed and simple climbing exposed
Vernon:
Class 2S, 2R, 2.5 - Uneven ground sliding, uneven ground exposed, short mantles/drops over rock
Class 2S, 2R, 2.5 - Uneven ground, sometimes sliding or exposed with some short mantles/drops over rock
6) On that note, there should be some common long form terms used (even if we don't try to map out every precise unpacked combination).
Class 1:
Walking
Class 2:
Uneven and/or steep ground with occasional use of hands or poles for balance
Uneven and/or steep ground
Class 2.5:
Short mantles/drops over rock and/or scrambling
Class 3:
Simple Climbing
Class 4:
Complex Climbing
Class 5:
Technical Climbing
S - Sliding
C - Collapsing
? - Exposed
? - Fatally Exposed
1) Are we good on sliding and collapsing for traction (focusing only on what's most consequential or troubling) or would having 3-4 labels for the entire range make sense? Traction: good, fair, poor, deadly, etc. I feel like this is going to be messy though I can understand the appeal of it.
There could be an explanation that stable to slightly loose to wobbly is the default state and then focus on sliding and collapsing.
2) Do we want just X, R & X, or just the whole movie spectrum rating for exposure? I lean fatally exposed and exposed but could go back to the originally proposed Class 5 movie rating system. I feel like PG and R are going to be messy. If do stick with the upper two levels, do R and X still make sense without G and PG? Options:
exposed: some probable injury and uneasy
fatally expoed: death or evac
R > X
XR > X
X > FX
X > XF
X > F
It feels a little weird to have X as the bottom option, as that's the highest in the informal Class 5 movie rating system, but if we tack fatal onto it that makes sense. EX > FX?
Update: what about something like heights & exposed?
H - heights? - accidents could result in serious injury, in general some uneasiness associated with heights maybe be felt even if route is fairly safe.
X - exposed - accidents would likely result in death or evac
I'm probably overthinking this. Just keeping it R and X and then explaining PG is the default state seems fine?
3) Any more modifiers? I feel like a routefinding modifier would require a written description of the routefinding, so don't mind not adding it. Holds snow/ice year round seems valid - a couple passes are labeled ice ax / crampon and I avoid them because I don't want to haul an extra 3lbs for 10 days. Not sure it's worth breaking out, especially as a lot of snow will turn into sliding if these winters keep up.

4) Any better short human readable / flatlander name for 2.5? I was a bit uneasy when I introduced this, but it gets the point of "a new class" while slotting into the existing system. Currently Class 5 is the only class with minor/sub classes in it, which is a slightly different usage than this. Its honestly more like 2.8 than 2.5, but at least .5 is in the middle and feels a bit more obvious. 2+/3- felt more precise, but is a mouthful.
If I didn't have a sliding for terrain we could call it 2S for scrambling. 2M? 2+? Just keep it 2.5?
5) I feel like unpacking the acronyms is a good thing, should that be formalized or left to "just use all the pieces". I'd go "motion > terrain > exposure" as the order for shorthand - so 2 SX etc as uneven ground that's sliding and exposed makes sense to me. I'm not sure I'd want to write out all the unpacked sentences that can come out and expect others to follow that. IMO as long as the Class 2S, 2R, 2.5 & Class 2X, 3R etc is consistent I'm not worried about the rest.
Does it matter if somewhere there's a
Ursula:
Class 2X, 3R - Some fatally exposed uneven ground and exposed simple climbing
Class 2X, 3R - uneven ground fatally exposed and simple climbing exposed
Vernon:
Class 2S, 2R, 2.5 - Uneven ground sliding, uneven ground exposed, short mantles/drops over rock
Class 2S, 2R, 2.5 - Uneven ground, sometimes sliding or exposed with some short mantles/drops over rock
6) On that note, there should be some common long form terms used (even if we don't try to map out every precise unpacked combination).
Class 1:
Walking
Class 2:
Uneven and/or steep ground with occasional use of hands or poles for balance
Uneven and/or steep ground
Class 2.5:
Short mantles/drops over rock and/or scrambling
Class 3:
Simple Climbing
Class 4:
Complex Climbing
Class 5:
Technical Climbing
S - Sliding
C - Collapsing
? - Exposed
? - Fatally Exposed