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Track: Local/State Government, Cadastral, Land Records
Kevin Hardester
Polk County Property Appraiser
255 N Wilson Ave
Bartow, FL 33830
Telephone: 941-534-4765
Fax: 941-534-4753
Developing a Multipurpose Accurate Parcel and Planimetric GIS System
Defining Issue: Building an accurate parcel GIS is like putting the pieces of a puzzle together, using geodetic control, planimetric data, legal decriptions, surveys, and aerial photography. GIS Solution: The Polk County Property Appraiser's Office, through interlocal agreements with political bodies, became the project management agency for the development of a County-wide parcel, planimetric, and digital orthorectified photography GIS project. GIS Project: The paper focuses on the organizational and technical issues that made this project a success. A three-tier committee structure was implemented to address the policy, project implementation, usage, and technical issues. The results of the pilot project resulted in several adjustments. The most important was to survey each section or square mile before parcel mapping occurred. The acceptable accuracy level had to be within two feet. Digital orthorectified photography was added to the project to assist in the process. Proper staffing was secured
with both regular employees and contract personnel. The parcel work is being done using ARC COGO and ArcInfo using PCs with Hummingbird PC/X tied to a Sun MicroSystem server. The digital orthophotography is on a RAID system tied to the server. The GIS initially is being developed with ten coverages (geodetic, hydro, parcel, lots, subdivision boundaries, municipal boundaries, edge of pavement, and roads.) The work flow process allows GIS to be used as each "section" is developed. The planimetric data can be used immediately for several applications such as traffic engineering and pavement management. Various departments access the GIS, Oracle database data, and digital ortho photography over the network using ArcInfo on workstations and Arc/View on PCs.
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