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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 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 Sheet Centerline File Centerlines _1JJ Phoical He , I P,elie 54ee1 Na Sheel Tpe SWIm PN*we A ea: lC'_ [I:elb Ja'axon o SE 102,edel3o- c 31a NOW Aadervo, Rd s n13 "A"", NesE 15 NOR crime rw 12ii&RnmsN 315 cW.P rRtd,9, F, A.z NV/ 33 ',t are NN' r1� Neib Nu Hey IN/ 3153WCdky c.csNN' 3?5 - wen Ner/ier aye N'e/ 3asaae/k� nl- Nw Record Ili sro, ai ee - Neem, IoalNesehcenl odKk - The address point layer should be created as a feature class in an ArcGIS Geodatabase . The address point feature class created by the geocoding process will include an attribute table separate from the table used to geocode physical addresses . 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 " , respectively . " Score " indicates the percentage of confidence in the match . One hundred ( 100) % indicates an exact match , 707o 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 . Indian River County should 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 . Phase 2 Manual Adjustment of Geocoded Address Points The next step will be manual verification of the location of the newly geocoded addresses throughout the County . Address points should be displayed in ArcGIS with tax parcels and aerial photography displayed as a backdrop to the address points . Geocoded address points should be manually moved ( rectified ) to the center of the corresponding structure on the tax parcel . 4- 15 GIS Needs Assessment and Implementation Plan Chapter 4 - Base Map Creation and Consideration