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Help!: Distances Appear Off

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    • CommentAuthorFree MemberCalantha
    • CommentTimeAug 13th 2007
     
    Calantha
    Hello... I'm new to MapMyRide, so perhaps I am doing something wrong. But my route distances seem to be off by about 3-4km. A running route I know to be 4.5km appears as 8km. My commute, which Gmaps Pedometer claims is 8.5km is listed as 10.5km... Another route I plotted on Gmaps was 23.4km but MMR says 27... What's up?
    • CommentAuthorHero!!jeff@mmf
    • CommentTimeAug 13th 2007
     
    jeff@mmf

    Hi Calantha-

     Our maps should be as accurate (or moreso) compared to other online mapping services, and very accurate in an absolute sense.  

     The largest room for error in the mapping process is how precisely you map your route.  For example, for accurate distances while running on a road, you want to make sire that you are carefully plotting your line on the road-i..e through he bends and such.  To achieve this, it is sometimes needed to "zoom in" the map to see more details of the road.  We also provide a "follow roads" feature that should help with this.

    If you want to directly compare our distance calculations to those from gmap-pedometer, we have the ability to import routes from it, so you can see how we "stack up". 

    • CommentAuthorFree MemberCalantha
    • CommentTimeAug 13th 2007
     
    Calantha
    Hi Jeff... The culprit was me. After zooming in I realized that by double clicking to add points on the map (as I was used to with Gmaps), it was double mapping my routes. After using a single-click my routes are now accurate. Thanks for your quick reply.
    • CommentAuthorFree MemberNathP
    • CommentTimeSep 3rd 2008
     
    NathP

    Hi Guys

     I have just had something similar occur. Have entered a detailed map of a run done today. The map seems to accurately display 7.6km, however where it comes up in the 'heading' or My Runs summary it is showing as about 18km which is wrong. Same with Training log, it is showing up as 18km. Any ideas - I assume this is correct thread to continue a discussion? Ta, Nath

    • CommentAuthorFree Memberkevin@mmf
    • CommentTimeSep 8th 2008
     
    kevin@mmf

    Nath,

    Can you send us the link to the route in question?

    -Kevin

    • CommentAuthorFree MemberNathP
    • CommentTimeSep 9th 2008
     
    NathP

    Hi Kevin,

    The link to the route is http://www.mapmyrun.com/run/australia/melbourne/499612824937

    It seems like my start marker went missing, could that be a reason? I manually updated my Training Log to read 7.26km which is pretty much the distance shown on the map, but all the other references to it eg in the heading, & the 'My Runs' summary display it as 18.75km...Thanks for your interest/advice.Smile

     Nath

    • CommentAuthorPremium Member!mcolumbus
    • CommentTimeSep 15th 2008
     
    mcolumbus
    I am haveing a simular problem.  I did a bike ride on Sunday that my odometer read 16.04 miles, mapmyride says that it is 18.0 miles.
    • CommentAuthorFree MemberDNADEB
    • CommentTimeSep 22nd 2008
     
    DNADEB
    I had checked my route with my car and it is off as much as 20%. Is it possible that the hillier the route is, the more it will be off? Is there a way to deal with this? Deb
    • CommentAuthorFree Memberlvigil
    • CommentTimeSep 27th 2008 edited
     
    lvigil
    I had mapped what I thought were the exact same route twice.  On one it says it is 1.6 miles.  The other says 2.6 miles.  It turned out that the longer one had double backed on itself somehow.  I think maybe it was the loop function that did it.  I don't know, I'm a newbie here so I probably did it wrong, but I'll figure it out.Laughing
    • CommentAuthorFree Memberspcrawford
    • CommentTime4 days ago edited
     
    spcrawford
    Runs listed in "My Runs" are  shorter than what shows up when I click on the actual maps of the same runs ("route info", in the box in the upper right-hand corner of the map). The distance I've been used to is the one on my list. The maps seem newer (on your updated site). Are they more accurate? That wouldn't be a bad thing, but I don't want to cheat on distance.  I haven't checked all my runs, but one was off by as much as + .3 mile.  Which distance should I trust?

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