The way routeslip works is that every time you add it point it determines its altitude and then compares it to the last point looking for a gain. Since it doesn't know anything about what happened inbetween these points it should underestimate both climbing and distance. I don't have any way to check my real climbing but I know my actual miles are always higher than what routeslip says. These underestimates should be greater for routes with many short altitude changes as compared to routes with long sustained climbs since your point picking will rarely hit the actual peaks.Originally Posted by SadieKate
Regardless of underestimates, if you do similar point picking (distance between points) for two routes you should get results that can be compared relatively.
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08-11-2006, 06:50 PM #1
Ooo, talk tri to me!
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I'd rather be swimming...biking...running...and eating cheesecake...
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08-11-2006, 07:47 PM #2
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I wonder if it has to do with the number of way points you pick. Since routeslip doesn't snap to the roads, I have to put in a lot of points for winding rural roads. This may be why I get the consistent overestimates.
I'm doing a longer version of the above route tomorrow. We'll see what happens.Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.
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08-12-2006, 09:56 PM #3
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Is it any wonder you don't know what to list as actual elevation?
Check out these two routes. I've ridden both. In actuality, Around the Mountain (ATM) has less climbing than the Dam Corners Route (DC) because the routes are the same except for one extra climb on the later. Veronica recorded from her Polar that ATM (routeslip created by someone else) had 2,720' climbing. Routeslip calculated 3,663'. The DC route with my newly added climb of Cantelow is 3,457' as recorded by my Ciclosport, but routeslip says 2,899'.
I'd say take the climbing on any of these mapping tools as "guidelines only."
http://www.routeslip.com/routelist.p...20Corner,%20CAFrends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.
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