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Table 1 Empirical geocoding positional error distributions

From: Local indicators of geocoding accuracy (LIGA): theory and application

  Bonner et al. (2003) Cayo & Talbot (2003) Ward et al. (2005)
Urban/Town    
Median 32 38 56
75th percentile - - 92
90th percentile 37 96 -
Mean 96 58 77
Max 1,551 1,088 687
Rural/Nonurban    
Median 52 201 88
75th percentile - - 254
90th percentile 61 1,544 -
Mean 129 614 210
Max 2,552 18,742 1,731
  1. Summary of geocoding positional error (meters) from 3 studies. Source: Abe and Stinchcomb (2008).