Reply to "Measuring Track portion of a 5km Course"

AdminMember

Went to the track this morning to take a measurement. Steel taped from the 100m mark to the finish, calibrated my wheel using that cal course, measured the inside line of lanes 2 and 5 all the way around, and then adjusted the measurements based on the measured lane widths.

Final results
length of track based on lane 2 measurement: 399.833m
length of track based on lane 5 measurement: 399.947m
length of track based on Google Earth measurement: 401.56m.

So Google Earth was off by about 0.37%. It should be noted that this is an error caused purely by the imprecision of GE's imagery and scaling, not by any inability to follow the true path(which of course is another source of error for Google Earth measurements).

10/30/1012:39 PM

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