FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
(VERSION 2004)
EYE CARE AND EYE SURGERY - OPHTHALMOLOGISTS
Geodataset Name: GC_EYECARE Geodataset Type: SHAPE Geodataset Feature: POINT
GENERAL DESCRIPTION:
This dataset contains 2004 Ophthalmologists information for the State of Florida. It contains Ophthalmologist / Eye Care facility addresses gathered from the Yellow Pages online and the Super Pages Online. This dataset contains fields denoting the physical address, and contact information for eye care facilities located in Florida.
DATA SOURCE(S): Yellow Pages Online, Super Pages Online SCALE OF ORIGINAL SOURCE MAPS: N/A DATE OF AUTOMATION OR SOURCE: Source 2004, Automated 2004 GEODATASET EXTENT: State of FloridaFEATURE ATTRIBUTE TABLES:
Datafile Name: GC_EYECARE.DBF ITEM NAME WIDTH TYPE PRECISION SHAPE 6 SHAPEPOINT 0 STATUS 1 CHARACTER 0 SCORE 4 DECIMAL 0 SIDE 1 CHARACTER 0 X 19 DECIMAL 5 Y 19 DECIMAL 5 NAME 68 CHARACTER 0 ADDRESS 43 CHARACTER 0 CITY 28 CHARACTER 0 ZIP 7 DECIMAL 0 PHONE 15 CHARACTER 0 TYPE 15 CHARACTER 0 DESCRIPT 70 CHARACTER 0
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
ITEM ITEM DESCRIPTION
SHAPE Data attribute inherent to the ESRI shapefile format,
which defines the data as a point, polyline, or polygon.
STATUS ESRI item which denotes the status of the geocoded address
(whether it was matched or not).
SCORE ESRI item which denotes the score with which the address
was matched to a feature in the reference data.
SIDE ESRI item which denotes the side of the street to which
the address was matched (for geocoding service styles that
can match an address to a particular side of a street).
X ESRI item which denotes the X coordinate of the geocoded
feature.
Y ESRI item which denotes the Y coordinate of the geocoded
feature.
NAME The name of the eye care facility.
ADDRESS The physical street address of the eye care facility.
CITY The city in which the eye care facility is located.
ZIP The five digit Zip code for the eye care facility.
PHONE The phone number of the eye care facility.
TYPE The Type of eye care facility.
DESCRIPT FGDL Added field based on NAME.
USER NOTES:
This dataset is a combination of eye care facility addresses from the Yellow Pages online and the Super Pages online that fall under Ophthalmologists. American Society of Cataract and Refractive Surgery ASCRS is an international educational and scientific organization whose 9,000 member ophthalmologists specialize in cataract and refractive surgery..... http://www.ascrs.org/ What is Geocoding? Geocoding is term used to describe the act of address matching. Geocoding is the process of finding a geographic location (x, y point) for an address (such as street number and name, city, state, and ZIP Code) on a map. Geocoding is based off the typical address scheme for the US, in which one side of the street contains even house numbers while the other side of the street contains odd house numbers. The geocoding process uses an algorithm to find the geographic location of addresses. First, a street segment is identified using the zip code and street name. Next, the geographic location of the address is matched using the building number to determine how far down the street and on which side of the street the building is located. Geocoding Accuracy The locational accuracy of geocoded addresses may vary from urban to rural areas due to the algorithm used to generate the geographic locations of addresses. The algorithm assumes that the size of parcels are equivalent along a road route. This assumption tends to be more consistent in urban areas, where the size of parcels vary less than in rural areas. Consequently, the results of geocoded addresses in urban areas are usually more reliable than those in rural areas. For example, the locational accuracy of rural addresses can be slightly off because some parcels along a rural route may be 15 acres while others may be 2.5 acres, but the geocoding algorithm assumes that the addresses are distributed evenly along the route. A note concerning data scale: Scale is an important factor in data usage. Certain scale datasets are not suitable for some project, analysis, or modelling purposes. Please be sure you are using the best available data. 1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries. 1:100000 scale datasets are recommended for projects that are at the multicounty or regional level. 1:250000 scale datasets are recommended for projects that are at the regional or state level or larger. Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: http://www.geoplan.ufl.edu/education.html
FGDL QUALITY ASSURANCE STATUS:
Process Steps for Super Pages Eye Care Center Locations: -Searched for Ophthalmology addresses in http://www.superpages.com/ -Selected Ophthalmology addresses under following categories: Health & Medicine, Physicians & Surgeons, Ophthalmology (2890) -All addresses from sections above were copied and pasted into a textfile, which was then formatted so that it could be imported into Excel and converted to a database file format. -Removed Duplicates. -The addresses were geocoded against ARC Logistics Route GDT Roads Shapefile created using FGDL Albers HPGN map projection. (See "Map Projection Parameters" below). Process Steps for Yellow Pages Eye Care Center Locations: -Searched for eye care addresses in http://www.yellowpages.com -Selected eye care addresses under following categories: Eye Care (Ophthalmologists & Optometrists) Ophthalmologists (284) -All addresses from sections above were copied and pasted into a textfile, which was then formatted so that it could be imported into Excel and converted to a database file format. -The addresses were geocoded against ARC Logistics Route GDT Roads Shapefile created using FGDL Albers HPGN map projection. (See "Map Projection Parameters" below). -Removed Duplicates. -Selected All Attributes in the shapefile and then perfomed a Select by Location function, 'Removbe from Selection' Yellow Pages Eye Care Centers that 'Intersect' Super Pages Eye Care Centers. Exported Selection and merged with Super Pages Eye Care Centers. Total Records = 868
REFERENCES:
Yellow Pages website: www.YellowPages.com Super Pages website: www.SuperPages.com
DATA LINEAGE SUMMARY:
Eye Care center facility locations were obtained from the online Yellow Pages and Super Pages. GeoPlan downloaded this data in textfile format and converted it to dbfs. The dbfs were then geocoded against ARC Logistics Route GDT Roads and converted into shapefiles with the FGDL Albers HPGN map projection. The two datasets had duplicate records removed and then were combined. (See "Map Projection Parameters" below).
MAP PROJECTION PARAMETERS:
Projection ALBERS Datum HPGN Units METERS Spheroid GRS1980 1st Standard Parallel 24 0 0.000 2nd Standard Parallel 31 30 0.000 Central Meridian -84 00 0.000 Latitude of Projection's Origin 24 0 0.000 False Easting (meters) 400000.00000 False Northing (meters) 0.00000
DATA SOURCES CONTACT(S):
Name: Yellow Pages
Web site: www.YellowPages.com
Phone: 1 (800) 343-7390
Name: SuperPages.com
Telephone: 1-800-376-0136
Address: Customer Care Center
651 Canyon Drive
Coppell, TX 75019
FGDL CONTACT:
Name: Florida Geographic Data Library
Abbr. Name: FGDL
Address: Florida Geographic Data Library
431 Architecture
PO Box 115706
Gainesville, FL 32611-5706
Web site: http://www.fgdl.org
Contact FGDL:
Technical Support: http://www.fgdl.org/fgdlfeed.html
FGDL Frequently Asked Questions: http://www.fgdl.org/fgdlfaq.html
FGDL Mailing Lists: http://www.fgdl.org/fgdl-l.html
For FGDL Software: http://www.fgdl.org/software.html