Image Assisted Surveying – by what measure is IAS faster than instruments with and without ATR
Speed of target aiming (source: Leica Geosystems CH, 5th Jan 2011):
Manual: 14.48 s, + 4 s = 18.48 s
ATR: 10.42 s, +4 s = 14.42 s
IAS: 7.02 s, +4 s = 11.02 s
Based on the typical ‘Measurement Time for GPR1’: 3 – 4 s
For a hypothetic survey, lasting 8hrs, if points were measured constantly;
Number of points measured in an 8hr period
Manual: 1,558 point
ATR: 1,997 points
IAS: 2,613 points
This situation equates to a 40% increase in productivity when using the “Tap & Turn” Viva principle.