FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION

TITLE: TELEATLAS HIGHWAYS Q1-2009

Geodataset Name:       GDT_HIGHWAYS_JAN09
Geodataset Type:       SHAPEFILE
Geodataset Feature:    Polyline
Feature Count:         46318
GENERAL DESCRIPTION:
This dataset contains major highways within the state of Florida from the January 2009 Tele Atlas dataset. The Highways layer includes all Interstate, U.S. and State highways and major arterial routes.
DATA SOURCE(S):                    Tele Atlas(R)
SCALE OF ORIGINAL SOURCE MAPS:     N/A
GEODATASET EXTENT:                 State of Florida
PUBLICATION DATE: 200901 TIME PERIOD OF CONTENT: 200901 DOWNLOAD LINK: http://www.fgdl.org/metadataexplorer/explorer.jsp

FEATURE ATTRIBUTE TABLES:

Datafile Name: GDT_HIGHWAYS_JAN09.DBF
ITEM NAME WIDTH TYPE
OBJECTID
4 OID
SEGMENT_ID
4 Integer
PREFIX
2 String
NAME
50 String
TYPE
6 String
SUFFIX
2 String
FCC
3 String
ACC
1 String
SHIELD
2 String
HWY_NUM
5 String
SEG_LEN
8 Double
SPEED
2 SmallInteger
ONE_WAY
2 String
F_ZLEV
2 SmallInteger
T_ZLEV
2 SmallInteger
FT_COST
8 Double
TF_COST
8 Double
FT_DIR
2 String
TF_DIR
2 String
NAME_FLAG
2 SmallInteger
DESCRIPT
32 String
FGDLAQDATE
36 Date
SHAPE
4 Geometry
AUTOID
4 Integer
SHAPE.LEN
0 Double

FEATURE ATTRIBUTE TABLES CODES AND VALUES:

Item
Item Description
OBJECTID Internal feature number.

SEGMENT_ID The unique segment identification number. This is not a Dynamap ID, since highway segments may have been chained from multiple street segments

PREFIX A 2-character field that is used to indicate a modifier to a highway, state highway or major thoroughfare name occurring before the highway name. Ex: 'E' Center Ave

NAME The concatenated full name of the highway segment

TYPE In most instances the highway type (Interstate, State Highway, etc.) is indicated in the Name field. In some cases, custom highway naming may require the type field to be filled with abbreviations such as 'BLVD' or 'PKWY' in the Highway layer

SUFFIX In most instances a highway suffix (I 91 N, State Highway 101 S, etc.) is indicated in the FT_DIR or TF_DIR directional field when a suffix indicates a direction. In some cases, custom highway naming may require the suffix field to be filled with abbreviations such as 'N' or 'S.'

FCC The feature class code that the street segment is associated with. Tele Atlas(R) FCCs are similar to the Census Bureau's CFCCs used in their TIGER(R) files. The FCC codes represented in this layer are: A1*: Divided Highways includes Interstates, Expressways and Parkways; A2*: U.S. Highways and Major State Highways; A3*: State Highways and Major Thoroughfares; A60: Ramps connecting A2/A3 series (Only those A60s with ACC codes of 1,2,3); A63: Ramps connecting A1/A2 series (Only those A63s with ACC codes of 1,2,3); A68: Vehicular Ferries: Seasonal; A69: Vehicular Ferries: Year Round.

ACC The set of Arterial Classification Codes (ACCs) is the Tele Atlas(R) system for categorizing roads according to the level of travel mobility that they provide in the road network. Mobility refers to the volume of traffic that a stretch of road carries and the length of trip that it serves. Valid entries are '1' for roads with highest mobility, through '5' for roads with least mobility.

SHIELD The first character of the Shield field indicates what shield should be used to represent each name based on its Primary Name. 'I' = Interstate, 'U' = US Hwy, 'S' = State Hwy, blank = other. The second character of the shield field indicates sub-classifications of the shield type. A shield subtype should not exist if there is not a primary shield type in the first character of the field. Valid entries are 'B' for business route; 'L' for loop; 'T' for truck; 'C' for connector; 'S' for spur; 'Y' for bypass; 'A' for alternate; 'X' for extended; 'N' for scenic.

HWY_NUM The Hwy_Num field indicates the number that appears in the shield for the highway. This will be present only for Interstates, U.S. Highways and State Highways. The HWY_NUM field will be populated only on FCC segments of A1*, A2* and A3*.

SEG_LEN The highway segment length in miles. The distance is calculated using the arc distance with correction for the earth's curvature.

SPEED The segment Speed field contains the average speeds categorized by FCC and defined in a Tele Atlas(R) FCC-to-Speed table document. The units are in miles per hour.

ONE_WAY The One_Way field is filled with either 'FT,' 'TF' or is blank. 'FT' indicates that the segment is one way, from the digitized From end to the digitized To end. 'TF' indicates the opposite direction of travel. A blank field indicates that travel is permitted in both directions.

F_ZLEV This field indicates the Z-axis relative elevation of a segment in the digitized 'From-to' direction. '0' indicates ground level; '1' indicates structures elevated one level above ground; '-1' indicates structures one level below ground level, etc.

T_ZLEV This field indicates the Z-axis relative elevation of a segment in the digitized 'To-from' direction. '0' indicates ground level; '1' indicates structures elevated one level above ground; '-1' indicates structures one level below ground level, etc.

FT_COST The cost to travel on a segment in the digitized From-To direction. The value of the cost is based on the length of the segment and its speed value. The units of cost are minutes. In some GIS formats, a '-1' value is a code that indicates that the street contains an alternate name.

TF_COST The cost to travel on a segment in the digitized To-From direction. The value of the cost is based on the length of the segment and its speed value. The units of cost are minutes. In some GIS formats, a '-1' value is a code that indicates that the street contains an alternate name.

FT_DIR The FT_Dir field conveys information about the described direction of travel along highways in the digitized From-to direction. This directional is not part of the recognized postal name. Permissible values for this field are N, S, E, W, NE, SE, NW, SW.

TF_DIR The TF_Dir field conveys information about the described direction of travel along highways in the digitized To-from direction. This directional is not part of the recognized postal name. Permissible values for this field are N, S, E, W, NE, SE, NW, SW.

NAME_FLAG For the Highway layer in this product, this field is a coded indicator of whether a highway name is most appropriate for statewide or cross-country directions (field content = '1') and whether the highway name also is appropriate for geocoding purposes (field content = '3').

DESCRIPT Description field based on NAME

FGDLAQDATE FGDL added field based on date downloaded from source

SHAPE Feature geometry.

AUTOID Unique ID added by GeoPlan

SHAPE.LEN Length in meters


USER NOTES:
In order to provide for reduced product size and algorithm efficiency, the 
Highways product extract process will normalize segments with similar attributes 
into highway chains. Database segments with the same set primary name and 
alternate names, as well as FCC, will be normalized into one highway chain.
* Intermediate nodes will be converted into shape points.
* All segment chains will stop at county borders in order to preserve county 
coding.
* Segment chains will not cross County, MCD or Place boundaries.
* Highway chains will break at the junction (valence 3 or greater) of any other 
highway chain.
* There is a limit of 500 shape points that can be attributed to a single highway 
chain.
* There will be no zero-length segments in the Highways product.
* Highways chains will break at state boundaries.
* Highways forming state boundaries will not be chained.
All street segments in the Tele Atlas(R) database with an FCC = A1*, A2*, A3*, 
A60, A63, A68 and A69 are considered. After processing, the dataset is checked 
for drawing display, correct number of records, record schema consistency with 
specifications, correct file naming, file sizes and a comparison check with the 
contents of the Tele Atlas(R) database at the time of creation.
GeoPlan relied on the integrity of the attribute information within
the original data.
To find out more about Dynamap(R)/Transportation and other available 
products, visit http://www.teleatlas.com.

The primary purpose of the Dynamap(R)/Transportation Highway layer is for 
vehicle routing, dispatching and general map display.

Tele Atlas(R) highway segments allow for six implied decimal places of precision. 
While minimum accuracy is consistent with 1990 TIGER/Line(R) files, accuracy is 
dependent on geographic area and sources used to update those areas. 
Selected geographic areas have been realigned to sub-12-meter accuracy.

This data is provided 'as is' and its vertical positional accuracy
has not been verified by GeoPlan

NONE

The Florida Geographic Data Library is a collection of Geospatial Data
compiled by the University of Florida GeoPlan Center with support from
the Florida Department of Transportation. GIS data available in FGDL is
collected from various state, federal, and other agencies (data sources)
who are data stewards, producers, or publishers. The data available in
FGDL may not be the most current version of the data offered by the
data source. University of Florida GeoPlan Center makes no guarantees
about the currentness of the data and suggests that data users check
with the data source to see if more recent versions of the data exist.

Furthermore, the GIS data available in the FGDL are provided 'as is'.
The University of Florida GeoPlan Center makes no warranties, guaranties
or representations as to the truth, accuracy or completeness of the data
provided by the data sources. The University of Florida GeoPlan Center
makes no representations or warranties about the quality or suitability
of the materials, either expressly or implied, including but not limited
to any implied warranties of merchantability, fitness for a particular
purpose, or non-infringement. The University of Florida GeoPlan Center
shall not be liable for any damages suffered as a result of using,
modifying, contributing or distributing the materials.

A note about data scale: 

Scale is an important factor in data usage.  Certain scale datasets
are 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.
1:125000 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

REFERENCES:


DATA LINEAGE SUMMARY:
Tele Atlas(R) extracts the dataset quarterly from the Tele Atlas(R) database using 
proprietary software. Data then converted into multiple GIS formats. ISO quality 
standards are enforced throughout the production process.

Data originally released by Tele Atlas in January 2009 on DVD.  When received, 
data was in the following projection: Geographic Lat Long  Datum D_WGS_1984, 
Units: Decimal Degrees.

The GeoPlan QA/QC and standardization process included the following steps:  
1.  The data was renamed from flxxxhy to gdt_highways_jan09.shp
2.  The data was reprojected to FGDL Albers HPGN map projection.  
3.  Added DESCRIPT field based on NAME
4.  Added field FGDLAQDATE
5.  Standardized Metadata
6.  Deleted fields with empty values
Process Date: 20090216

Data imported to ArcSDE and exported as a shapefile. Process Date: 20090305
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:
Tele Atlas(R)
Tele Atlas
11 Lafayette Street
Lebanon, NH
03766
(800)331-7881

www.teleatlas.com info.NA@teleatlas.com

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