> > On Thursday, January 16, 2020 at 11:07:30 PM UTC-8, Danilo Baggini wrote: > >> For your information the OsmAnd time of about 4 hours is for very very >> fast hikers .... the normal time is 5-6 hours. >> > On Fri, Jan 17, 2020 at 10:34 AM Bart Eisenberg <[email protected]> wrote:
> I'm not surprised your estimate is longer: that's a steep trail. > If I'm calculating 'guidebook time', I presume that an average party will take 30 min to go a mile (20 min to go a km) on unpaved trail on level ground, and then, for a loop or out-and-back, add an hour for every thousand feet (20 min/100 m) of elevation gain. For a linear trip that doesn't return to the starting point, I recognize that going down slows the party as well as going up, and change that to 30 min/mile (20 min/km) plus 40 min for an ascent of 1000 ft/300 m, 20 min for a descent of the same amount. That figure is probably more realistic if you're not leading a party of athletic young adults or trained mountain troops, which is the sort of person that the original Naismith rule was targeting. It works pretty well for the typical crew that will turn up for a hiking club outing. Also, hikers don't mind finishing a little earlier than estimated, but they and their loved ones do get peevish when they're back signficantly late. (Don't even ask about my wife's reaction the time that my daughter and I were a day late getting back from an outing!) -- 73 de ke9tv/2, Kevin -- You received this message because you are subscribed to the Google Groups "Osmand" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/osmand/CALREZe8zzzjG77jR4mv%2B1YuxvOfdwW7Yz-RoPu2uAKMnCcxcag%40mail.gmail.com.
