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Indian River County, Florida Address Point Creation to An alias table may also be created to store detailed address information about common ( vanity) location names, such as "County Courthouse ". The result of the initial geocoding process will not be a complete point file, but it will eliminate some of the work necessary for creation of the point layer. Due to the mechanisms used to determine the addresses of rural structures, the geocoding process against the street centerlines ( Figure 8 ) will use a single range option . This option will geocode the points to center of the street and will have a lower level of initial accuracy than a geocode based on other systems such as a dual range system . Address Match Database against Street Centerline File Table Centerlines Pll w[dNabry J YOeNAaNe 511�Ir $d N dfs `algEbett j ' 1@ . _ S.f . . . . r pR .v al t . �J'ri .. . f IP.AriNe1L is . •:.1 N¢: 4^ .a . V..: rShxSiv �el:f �f 71 Ae �. --`a �A sl..t.�'a sNNlw nsmc iawaa:d.�Nel —� Figure 8 The new address point Geodatabase feature class created by the geocoding process will include two additional fields : 1 ) "Status " and 2 ) " Score". " Status " indicates whether individual records were matched or unmatched , with values of " M " or " U "r respectively . "Score" indicates the percentage of confidence in the match . One hundred ( 100 ) % indicates an exact match , 70% a less than perfect match , etc . The Geocoding Service in ArcGIS allows users to control what score will constitute a match . In addition , all unmatched addresses can be interactively matched . Geocoded address points can be offset at a designated distance ; otherwise, each will be placed on top of the street centerline . GTG will make a concerted effort to address match every physical address possible . "Status " and " Score" fields should remain visible to County staff responsible for maintaining the master address point layer, but should not be visible to end users . Once the geocoding process is complete and a base address point layer is created the following tasks will need to be performed : 1 . Compare the unmatched addresses against the street centerline and address point data . Problems that occur may be due to the following : A Misspellings of Streets Naming Conventions - prefix , suffix Addresses with which the geocoder has problems ( such as numbered streets - 101 10th Street) Street Aliases A New Developments Addresses Outside the County Boundary aowvfv 6