Speeds on web planner - comparing statistics and chart are inconsistent

Andrew Heard shared this problem 5 months ago
Known

Referring to this recorded track the chart shows a maximum speed of 10.0km/h. Visually (by eye) you would say the average is maybe 9.5km/h

20f6b335e4b0520f684c1b821216ea6b

but the statistics show an average of 10.0km/h. One or the other must be wrong.

626ff92f36335ccc8d59f4edb2570b29

And the statistics also show a maximum of 11.2km/h, which is inconsistent with the chart's maximum of 10.0 (10% error):

7dfa391e2e000599b13037656967bfb2

If I import the GPX into Garmin Basecamp, extract the data as a CSV, then import into a spreadsheet, the average is close to 10km/h and the maximum around 13:25 seems about right too at 11km/h. My guess is the chart is wrong, by a significant (10%) amount, and the statistics are correct.

Replies (2)

photo
1

Hi Andrew,

thank you for your question. The difference you can see between data in chart and statistics is caused by the smoothing filter applied only to the visualized chart data.


Kind regards, Ondrej

photo
1

Thanks Ondrej. I guess it probably was. But at very least unnecessary inconsistency between

3b0bd95ec72dec8a957c6038123399e2and fef22a3399068cdf390ccb93c1ef0c80?

Leave a Comment
 
Attach a file