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Table 2 Two-sided 95% confidence limits for mean positional error magnitude, and 95% tolerance bound for the lower 95% of positional error magnitudes, at the 10th, 50th, and 90th percentiles of the statistically most important covariate (street length for municipal addresses and street intersection density for rural addresses).

From: The effects of local street network characteristics on the positional accuracy of automated geocoding for geographic health studies

Rurality

Covariate

p

100p th percentile

Confidence limits

Tolerance bound

Municipal

Length

0.10

93.7

(41.87,42.88)

111.26

  

0.50

127.8

(44.73,45.75)

118.56

  

0.90

295.4

(60.98,63.04)

163.17

Rural

Density

0.10

0.64

(180.49,210.00)

1436

  

0.50

1.59

(176.08,203.71)

1395

  

0.90

7.00

(150.07,174.84)

1195

  1. Units of these limits and bounds are meters.