FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: FLORIDA DEPARTMENT OF TRANSPORTATION ASPHALT SOURCES 2006

Geodataset Name:       ASPHSRC
Geodataset Type:       Shapefile
Geodataset Feature:    POINT
Feature Count:         132
GENERAL DESCRIPTION:
This dataset contains asphalt source locations from the April 2006 version of the Florida Department of Transportation Asphalt Sources Table. The materials/producer listings found in the table are updated once every 24 hours online, this dataset represents a snap shot of the data available for the date of April 20, 2006.
DATA SOURCE(S):                    FDOT / GeoPlan Center
SCALE OF ORIGINAL SOURCE MAPS:     VARIOUS
DATE OF AUTOMATION OF SOURCE:      20060420
GEODATASET EXTENT:                 State of Florida

FEATURE ATTRIBUTE TABLES:

Datafile Name: ASPHSRC.DBF
ITEM NAME WIDTH TYPE
FID
4 OID
Shape
0 Geometry
Score
4 Number
FAC_ID
10 String
NAME
50 String
DISTRICT
9 String
STATUS
30 String
ADDRESS
35 String
CITY
20 String
ZIPCODE
9 String
CONTACT
30 String
PHONE
14 String
EMAIL
50 String
MAILING
35 String
M_CITY
35 String
M_STATE
10 String
M_ZIPCODE
12 String
ACT_DATE
8 Date
DESCRIPT
50 String
FGDLAQDATE
8 Date
AUTOID
4 Number

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item
Item Description
FID Internal feature number.

Shape Feature geometry.

Score The Geocode accuracy score for the facilities physical location.

FAC_ID The facilities identification number.

NAME The name of the facility.

DISTRICT The FDOT district that the facility falls within.

STATUS The status of the facility, i.e. the facilities Quality Control Plan.

ADDRESS The address of the facility.

CITY The city that the facility is located in.

ZIPCODE The zipcode of the facility.

CONTACT The contact person for the facility.

PHONE The phone number of the facility.

EMAIL The email address for the facility.

MAILING The mailing address for the facility.

M_CITY The city that the mailing address is located in.

M_STATE The state that the mailing address is located in.

M_ZIPCODE The zipcode that the mailing address is located in.

ACT_DATE The active date for the facility.

DESCRIPT Based on Name.

FGDLAQDATE The date FGDL obtained the data from the source.

AUTOID GeoPlan Center internal feature number.


USER NOTES:




The materials/producer listings found in the table are updated once 
every 24 hours online, this dataset represents a snap shot of the data 
available for the date of April 20, 2006.

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 
datasetsare not suitable for some project, analysis, or
modeling 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 multi-county 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 sectionand 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

REFERENCES:
Asphalt Sources	
PDF - 82.7KB	
XLS* - 58KB
http://www.dot.state.fl.us/statematerialsoffice/
quality/programs/qualitycontrol/materialslistings
/postjuly2002.htm


Asphalt District Contacts

District One/Seven
Paul Barnes
(863) 519-4266

District Two
Stephen Sedwick 	
(386) 961-7750

District Three
Frank Kries
(850) 981-1634

District Four/Six
Jesus Caballero
(954) 475-4102

District Five
Richard Hewitt
(386) 740-3498

Turnpike	
Christopher NeSmith	
(954) 934-1111

SMO	
Pat Upshaw, Maurice McReynolds,
Jim Musselman
(352) 955-6600

DATA LINEAGE SUMMARY:
The data set was derived from the Florida Department of 
Transportation State Materials Office from the following webpage:

http://www.dot.state.fl.us/statematerialsoffice/quality/programs/
qualitycontrol/materialslistings/postjuly2002.htm

The table was originally downloaded in April 2006 as the
Asphalt Sources excel table, which was converted to a .dbf
The table was Geocoded based on the facilities physical address 
and the Albers HPGN GDT roads shapefile (gdt_alb2005qt1.shp).
Next the following fields were added and calculated.
DESCRIPT - Based on the name of the facility.
FGDLAQDATE - Based on the date FGDL aquired the data from the source.
AUTOID - GeoPlan Center internal feature number.
Process Date: 20060420

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 SOURCE CONTACT (S):

Name:
Abbr. Name:
Address:


Phone:

Web site:
E-mail:
Contact Person:
         Phone:
        E-mail:
Florida Department of Transportation State Materials Office
FDOT
5007 N.E. 39th Avenue
Gainesville, FL
32609
(352) 955-6600

www.fgdl.org christine.mcdonald@dot.state.fl.us Christine McDonald

FGDL CONTACT:
Name:                   FLORIDA GEOGRAPHIC DATA LIBRARY
Abbr. Name:             FGDL
Address:                Florida Geographic Data Library
                        431 Architecture Building
                        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