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FREECLOUD's Photo FREECLOUD Posts: 1,548
5/19/09 12:18 A

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Thanks for road testing those sites, and good luck on getting that Garmin ;)

Wendy
~~~~~

"I have achieved oneness with the road - Please dial 911 for me" - Unknown

"A bicycle ride is a flight from sadness." James E. Starrs, The Literary Cyclist

"We run, not because we think it is doing us good, but because we enjoy it and cannot help ourselves...The more restricted our society and work become, the more necessary it will be to find some outlet for this craving for freedom."
-Sir Roger Bannister, first runner to run a sub-4 minute mile


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MIKEGOODNER's Photo MIKEGOODNER Posts: 254
5/18/09 11:05 P

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Well, I managed to use both mapmyride and veloroutes and proved your point. mapmyride told me I rode 23.7 miles (amazingly close to my 23.86 actual) with 427 elevation gain. Considering there were two main hills (one from 150' to 350' elevation and one from 200' to 400') with several rollers in the ~50' range (ok, some of you might consider 200' hills rollers!), I was kind of shocked at 427'. Veloroutes gave 23.56 miles with 800' elevation gain - a lot closer to what it probably is.

Thanks for the pointers... I put a Garmin on my birthday list, so we'll see what happens. :)

2010 Race Schedule:
1/3/10 - ORRC Y2KX - 55:06
6/26/10 - Seattle Rock N Roll Marathon (for Team LiveSTRONG)
9/26/10 - Echelon Gran Fondo

Adversity causes some men to break; others to break records William Arthur Ward

runningwithmikeg.blogspot.com/

www.livestrong.org/teamls2010/mikegs
eattle


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SCOTTCR1's Photo SCOTTCR1 Posts: 103
5/18/09 4:16 P

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I hear lots of problems with software generated elevation gain calculations. Probably due to topo map accuracy but more importantly, how the software calculates the total (how often it creates a waypoint... how it fills in the 'gap' between the last marker, etc.

I have seen on forums where people discovered such things like:
"veloroutes reported the 1800' I climbed on Saturday as 6800'"

and

"I have tried several of the freebie (and not free) computer mapping programs. They ALL give wildly inaccurate cumulative elevation gain numbers. For the same route, one of these programs might report 3 times the elevation gain of another program."

http://www.bikeforums.net/showthread.php
?t=453388

if you really want accurate results, it appears that a software solution is not the way to go. The only folks who seem to have any confidence in the elevation gain results have barometric altitude computers like Polar, Garmin, Cateye, etc which are usually within 5% of the actual.

I've always liked the altitude feature on computers, especially real-time %grade readouts when climbing. FWIW, I used a barometric cycling computer for 12 years:
- Cateye AT-100 (one of the first) no % grade though
- Specialized (forget name, P-Brain..?, it was the Festina colored "Pro" model). Worked well.
- Garmin Edge 705 - altitude, % grade... plus tons more.

Similar problems exist for 'calories burned' calculations... you can get wildly different numbers depending on computer, or software used. I know my computer generally overstates calories by 70% so I just program in my weight as 95lbs :)

Edited by: SCOTTCR1 at: 5/18/2009 (16:33)
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HEYPUTTHATDOWN's Photo HEYPUTTHATDOWN Posts: 261
5/18/09 3:45 P

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Scott,

What causes the discrepancy? Is the underlying topographic information incorrect?

FWIW, I use veloroutes.org ...

Bob


I'd rather be sitting on my bike thinking about God than sitting in church thinking about my bike ...
MIKEGOODNER's Photo MIKEGOODNER Posts: 254
5/18/09 1:53 P

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Thakns for the various links. I definitely do need to make some friends with barometric computers or GPSes. :)

2010 Race Schedule:
1/3/10 - ORRC Y2KX - 55:06
6/26/10 - Seattle Rock N Roll Marathon (for Team LiveSTRONG)
9/26/10 - Echelon Gran Fondo

Adversity causes some men to break; others to break records William Arthur Ward

runningwithmikeg.blogspot.com/

www.livestrong.org/teamls2010/mikegs
eattle


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SCOTTCR1's Photo SCOTTCR1 Posts: 103
5/17/09 8:59 P

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It is important to note that many people report inaccurate results with software elevation programs such as mapmyrun.com, mapmyride.com, www.bikely.com , and www.bikeroutetoaster.com .

Barometric elevation bike computers are more accurate, but of course would cost $$$.

Solution: Ride the route next time with a buddy who has a computer that measures elevation :)

Edited by: SCOTTCR1 at: 5/17/2009 (21:07)
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FREECLOUD's Photo FREECLOUD Posts: 1,548
5/17/09 8:19 P

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Try this site - www.mapmyride.com/

I haven't used it, but have used mapmyrun.com and it's free.

Wendy
~~~~~

"I have achieved oneness with the road - Please dial 911 for me" - Unknown

"A bicycle ride is a flight from sadness." James E. Starrs, The Literary Cyclist

"We run, not because we think it is doing us good, but because we enjoy it and cannot help ourselves...The more restricted our society and work become, the more necessary it will be to find some outlet for this craving for freedom."
-Sir Roger Bannister, first runner to run a sub-4 minute mile


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MIKEGOODNER's Photo MIKEGOODNER Posts: 254
5/17/09 8:14 P

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Hi all-

I went on a reasonably hilly ride this morning, and as the legs are beginning to feel nice and sore, I'm asking myself how much elevation did I really climb? Does anybody know of a (preferably free) mapping tool that will give you elevation stats? For running I used to use FavoriteRun.com, but you have to (gasp) get a subscription to get the elevation profile feature - and I'm not sure that it would give you stats like total elevation gained/lost. I also know that gmaps-pedometer can give you an elevation profile, but it doesn't seem to give stats either (unless I'm using it wrong). Any website or software that I can be directed to would be great.

Thanks!
Mike


2010 Race Schedule:
1/3/10 - ORRC Y2KX - 55:06
6/26/10 - Seattle Rock N Roll Marathon (for Team LiveSTRONG)
9/26/10 - Echelon Gran Fondo

Adversity causes some men to break; others to break records William Arthur Ward

runningwithmikeg.blogspot.com/

www.livestrong.org/teamls2010/mikegs
eattle


 current weight: 196.2 
 
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