Comparing a single-stage geocoding method to a multi-stage geocoding method: how much and where do they disagree?

Table 4 Supplemental geocoding results using satellite images

Original geocoding result	Single-stage only	Multi-stage only	Both methods
Number selected	40	372	1000 (a random sample)
Number (%) matched by Google Earth Pro	24 (60)	233 (63)	962 (96)
Distance to single-stage geocoded location, meters
10^th percentile	17	.	10
25^th percentile	57	.	19
50^th percentile (median)	172	.	38
75^th percentile	871	.	83
90^th percentile	3402	.	162
Proportion > 1000, %	25.0	.	1.5
Distance to multi-stage geocoded location, meters
10^th percentile	.	6	6
25^th percentile	.	8	11
50^th percentile (median)	.	30	32
75^th percentile	.	67	65
90^th percentile	.	153	125
Proportion > 1000, %	.	3.9	1.8

ISSN: 1476-072X