In reply to spidermonkey09:
> My apologies if this is an ignorant question, but why is dropping bolt numbers and route lengths from sport routes prescriptive and dangerous? I'd have thought it was the opposite surely to stop people setting off with not enough draws and/or too short a rope to lower off safely. If I'm missing something, my bad!
No it is a good point which has quite a lengthy reply.
Bolt numbers - We found these were simply too easy to get wrong and a wrong number of bolts is less useful than no number of bolts, especially if you have underestimated. We included them in the 1995 Rockfax but when we checked them in the 2000 Rockfax we found loads were out. Also, when people re-bolt routes they sometimes add extra bolts.
Rope Lengths - We have included pitch lengths in topo descriptions but had problems with local climbers extending routes in El Chorro over 30m after the guidebook had been published. This caused a few problems with routes which had previously been only 25m.
Also, where people are lowering off, it is a dodgy figure to give for a number of other reasons.
- People stand in different places when belaying
- People cut the ends of ropes and then forget
- People use different amounts of ropes in their knots
- Ropes are often different lengths
The manufacturer rope length issue is an important one since we have found in our rope tests here that ropes can vary by as much as 5m or 6m from what the manufacturer says they are, although always they are longer. Not a problem, you may think. Well here is a scenario:
You buy a rope that you think is 60m since that is what is says, but it is actually 66m. You climb a route and just manage to lower off on the stretch. Another climber comes up and asks "how long is that route?". "You'll be okay on a 60m to lower", you reply. He then sets off with his 60m rope that really is 60m long, and ends up plummeting from 6m above the ground when his rope flips through the relaxed belayer's device.
As a general comment though, I think that counting quickdraw and planning and watching your rope is something that is safer if the responsibility is passed to the climber involved so that they learn to do it right.
Alan
Post edited at 18:15