FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: TRAFFIC ANALYSIS ZONES - 2000

Geodataset Name:      TAZ2000
Geodataset Type:      SHAPE
Geodataset Feature:   POLYGON

GENERAL DESCRIPTION:

This dataset contains 2000 Traffic Analysis Zones (TAZ) as they
are defined by the Bureau of the Census. The data contains
selected fields from the Summary 1 file that includes
information on total population, race, sex, age, and household.
A TAZ is a statistical entity delineated by state and/or local
transportation officials for tabulating traffic-related census
data.

DATA SOURCE(S):                   U.S. Department of Commerce, Bureau of the Census

SCALE OF ORIGINAL SOURCE MAPS:    100,000

DATE OF AUTOMATION OR SOURCE:     Source 2000, Automated 2003

GEODATASET EXTENT:                State of Florida

FEATURE ATTRIBUTE TABLES:

Datafile Name: taz2000.dbf

ITEM NAME    WIDTH       TYPE      PRECISION 
Shape		8	SHAPEPOLY	0
Taz_disv	15	CHARACTER	0
Count		11	DECIMAL		0
State		2	CHARACTER	0
Arealand	18	DECIMAL		0
Areawatr	18	DECIMAL		0
Hu100		18	DECIMAL		0
Taz		6	CHARACTER	0
Pop2000		18	DECIMAL		0
White		18	DECIMAL		0
Black		18	DECIMAL		0
Ameri_es	18	DECIMAL		0
Asian		18	DECIMAL		0
Hawn_pi		18	DECIMAL		0
Other		18	DECIMAL		0
Mult_race	18	DECIMAL		0
Hispanic	18	DECIMAL		0
Males		18	DECIMAL		0
Females		18	DECIMAL		0
Age_under5	18	DECIMAL		0
Age_5_17	18	DECIMAL		0
Age_18_21	18	DECIMAL		0
Age_22_29	18	DECIMAL		0
Age_30_39	18	DECIMAL		0
Age_40_49	18	DECIMAL		0
Age_50_64	18	DECIMAL		0
Age_65_up	18	DECIMAL		0
Households	18	DECIMAL		0
Ave_hh_sz	18	DECIMAL		2
Hsehld_1_m	18	DECIMAL		0
Hsehld_1_f	18	DECIMAL		0
Marhh_chd	18	DECIMAL		0
Marhh_no_c	18	DECIMAL		0
Mhh_child	18	DECIMAL		0
Fhh_child	18	DECIMAL		0
Families	18	DECIMAL		0
Ave_fam_sz	18	DECIMAL		2
Hse_units	18	DECIMAL		0
Vacant		18	DECIMAL		0
Owner_occ	18	DECIMAL		0
Renter_occ	18	DECIMAL		0
Acres		18	DECIMAL		3
Popdens		18	DECIMAL		2
        

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Note: All Field Definitions that are followed by a (P######) or (H######) were
taken from Geography Network.

ITEM          ITEM DESCRIPTION    

SHAPE         Data attribute inherent to the ESRI shapefile format,
              which defines the data as a point, polyline, or polygon.

TAZ_DISV      Dissolve field for TAZ

COUNT         Number of blocks that make up TAZ

STATE         State FIPS Code

AREALAND      Area (land)

AREAWATR      Area (water)

HU100         Housing Count (100%)

TAZ           Traffic Analysis Zone (TAZ)

POP2000       Population 2000 (P007001)

WHITE         White alone (P007002)

BLACK         Black or african american alone (P007003)

AMERI_ES      American indian and alaska native alone (P007004)

ASIAN         Asian alone (P007005)

HAWN_PI       Native hawaiian and other pacific islander alone (P007006)

OTHER         Some other race alone (P007007)

MULT_RACE     2 or more races (P007008)

HISPANIC      People who are hispanic or latino (P011001)

MALES         Males (P012002)

FEMALES       Females (P012026)

AGE_UNDER5    Male and female under 5 yrs (P012003 + P012027)

AGE_5_17      Male and female 5 to 17 yrs (P012004-006 + P012028-030)

AGE_18_21     Male and female 18 to 21 yrs (P012007-009 + P012031-033)

AGE_22_29     Male and female 22 to 29 yrs (P012010-011 + P012034-035)

AGE_30_39     Male and female 30 to 39 yrs (P012012-013 + P012036-037)

AGE_40_49     Male and female 40 to 49 yrs (P012014-015 + P012038-039)

AGE_50_64     Male and female 50 to 64 yrs (P012016-019 + P012040-043)

AGE_65_UP     Male and female 65 yrs and over (P012020-025 + P012044-049)

HOUSEHOLDS    Households (P015001)

AVE_HH_SZ     Average household size based on block Average household 
              size (P017001)

HSEHLD_1_M    1-person household male householder (P018003)

HSEHLD_1_F    1-person household female householder (P018004)

MARHH_CHD     Family households married-couple family w/ own children 
              under 18 yrs (P018008)

MARHH_NO_C    Family households married-couple family no own children
              under 18 yrs (P018009)

MHH_CHILD     Family households other family male householder no wife 
              present w/ own children under 18 yrs (P018012)

FHH_CHILD     Family households other family female householder no 
              husband present w/ own children under 18 yrs (P018015)

FAMILIES      Families (P031001)

AVE_FAM_SZ    Average family size based on block Average family size 
              (P033001)

HSE_UNITS     Housing units (H001001)

VACANT        Housing units vacant (H003003)

OWNER_OCC     Housing units owner occupied (H004002)

RENTER_OCC    Housing units renter occupied (H004003)

ACRES         Total acres of block (calculated using x-tools in AV 3.2)

POPDENS       Population density (pop2000/acres)


USER NOTES:

A traffic analysis zone (TAZ) is a statistical entity delineated by state and/or local transportation officials for tabulating traffic-related census dataespecially journey-to-work and place- of-work statistics. A TAZ usually consists of one or more census blocks, block groups, or census tracts. For the 1990 census, TAZs were defined as part of the Census Transportation Planning Package (CTPP). The U.S. Census Bureau first provided data for TAZs in conjunction with the 1980 census, when it identified them as traffic zones. Each TAZ is identified by a six- character alphanumeric code that is unique within county or statistically equivalent entity. For the 1990 census, TAZ codes were unique within CTPP area, which generally conformed to a metropolitan area.

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 multi-county or regional level.

1:125000 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 analysis. 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 webpage at: http://geoplan.ufl.edu/education.html.

These data are based on interpretation of available information and should not be construed as legally binding.

FGDL QUALITY ASSURANCE STATUS:

-Projected data to FGDL Albers HPGN (See "Map Projection Parameters" below).
-Performed dissolve on statewide block data using "taz_disv" as dissolve item.

REFERENCES:

U.S. Census BureauDocumention:
www.census.gov/prod/cen2000/doc/sf1.pdf

DATA LINEAGE SUMMARY:

This data was originally released by US Census Bureau in 2000. GeoPlan downloaded this data in shapefile format from ESRI (http://www.esri.com/data/download/census2000_tigerline/index.html). When received, data was in Geographic projection, Datum: NAD83, Spheroid: GRS1980, Units: Decimal degrees. The data was then projected to FGDL Albers HPGN (See "Map Projection Parameters" below).

MAP PROJECTION PARAMETERS:

Projection                           ALBERS
Units                                METERS
Datum                                HPGN
Spheroid                             GRS1980
1st standard parallel                24   0  0.000
2nd standard parallel                31  30  0.000
Central meridian                    -84   0  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:                   UNITED STATES CENSUS BUREAU 
Abbr. Name:             USCB 
Address:                United States Census Bureau
                        Tiger Mapping Service
                        Washington, D.C.  20233
Phone:                  (301) 457-1128 (Geography)
                        (301) 457-4100 (Customer Service)                       
Web site:               http://www.census.gov/ftp/pub/geo/www/tiger
                        ESRI Site:
                        http://www.esri.com/data/download/census2000_tigerline/index.html
E-mail:                 Tiger@census.gov
Contact Person:         Products and Services Staff, Geography Division
         Phone:         (301) 457-1128
        E-mail:         Tiger@census.gov

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