#1
|
|||
|
|||
Trail lengths
I find more often than not, it is exagerated high, ie, 20km being less than
19km. It is rather annoying. Micheal "Coyoteboy" wrote in message ... Ive noticed that on a lot of rides here in the UK the trail builders claim "20.4Km" or such like but when i take my GPS out, even with continuous tracking and taking height gain into it I can still come up several Km short of the stated distance. Does anyone else find this? |
Ads |
#2
|
|||
|
|||
Trail lengths
Micheal Artindale wrote:
I find more often than not, it is exagerated high, ie, 20km being less than 19km. It is rather annoying. Micheal "Coyoteboy" wrote in message ... Ive noticed that on a lot of rides here in the UK the trail builders claim "20.4Km" or such like but when i take my GPS out, even with continuous tracking and taking height gain into it I can still come up several Km short of the stated distance. Does anyone else find this? Depends on how they measure it. AFAIK, GPS usually records a horizontal distance whereas bike computers include the lengths of the inclines. Usually means that the GPS will give a lower value as compared to a bike computer. The more hills on the trail, the worse this can be. On the flip side, a lot of GPS units also tell you the vertical distance covered to make up for it Michael Halliwell |
#3
|
|||
|
|||
Trail lengths
Michael Halliwell wrote:
Micheal Artindale wrote: I find more often than not, it is exagerated high, ie, 20km being less than 19km. It is rather annoying. Micheal "Coyoteboy" wrote in message ... Ive noticed that on a lot of rides here in the UK the trail builders claim "20.4Km" or such like but when i take my GPS out, even with continuous tracking and taking height gain into it I can still come up several Km short of the stated distance. Does anyone else find this? Depends on how they measure it. AFAIK, GPS usually records a horizontal distance whereas bike computers include the lengths of the inclines. Usually means that the GPS will give a lower value as compared to a bike computer. The more hills on the trail, the worse this can be. On the flip side, a lot of GPS units also tell you the vertical distance covered to make up for it Do the trig to figure out how much that difference is for a ridable trail. It ain't much. Shawn |
#4
|
|||
|
|||
Trail lengths
Shawn wrote:
Michael Halliwell wrote: Micheal Artindale wrote: I find more often than not, it is exagerated high, ie, 20km being less than 19km. It is rather annoying. Micheal "Coyoteboy" wrote in message ... Ive noticed that on a lot of rides here in the UK the trail builders claim "20.4Km" or such like but when i take my GPS out, even with continuous tracking and taking height gain into it I can still come up several Km short of the stated distance. Does anyone else find this? Depends on how they measure it. AFAIK, GPS usually records a horizontal distance whereas bike computers include the lengths of the inclines. Usually means that the GPS will give a lower value as compared to a bike computer. The more hills on the trail, the worse this can be. On the flip side, a lot of GPS units also tell you the vertical distance covered to make up for it Do the trig to figure out how much that difference is for a ridable trail. It ain't much. Shawn True, but it accounts for some of it Of course, trails can also be transient...section goes bad and it gets bypassed, impacting the trail length which may not be reflected in what the builders claim. Or it could be as simple as the initial measurement being off....someone forgets to reset their computer or uses an air photo to pull off distances or any number of things. Personally, I use the claimed distance as a rough ballpark at the best of times. Michael Halliwell |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Trail lengths | G.T. | Mountain Biking | 1 | January 27th 07 12:04 AM |
Legs of different lengths | Richard Greenberg | General | 12 | October 31st 05 05:44 AM |
uneven leg lengths? | [email protected] | Techniques | 9 | September 10th 05 03:12 PM |
spoke lengths | Taka | UK | 6 | August 14th 05 03:28 PM |
Crank lengths | Stu Carter | Unicycling | 12 | May 27th 05 12:43 AM |