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FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION TITLE: TELEATLAS RAILROADS Q1-2009 Geodataset Name: GDT_RAILROADS_JAN09 Geodataset Type: SHAPEFILE Geodataset Feature: Polyline Feature Count: 21531 |
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GENERAL DESCRIPTION:
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DATA SOURCE(S): Tele Atlas(R) SCALE OF ORIGINAL SOURCE MAPS: N/A GEODATASET EXTENT: State of Florida |
FEATURE ATTRIBUTE TABLES:
Datafile Name: GDT_RAILROADS_JAN09.DBF
| ITEM NAME | WIDTH | TYPE |
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OBJECTID
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4 | OID |
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DYNAMAP_ID
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4 | Integer |
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NAME
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50 | String |
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FCC
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3 | String |
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DESCRIPT
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32 | String |
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FGDLAQDATE
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36 | Date |
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SHAPE
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4 | Geometry |
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AUTOID
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4 | Integer |
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SHAPE.LEN
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0 | Double |
FEATURE ATTRIBUTE TABLES CODES AND VALUES:
| Item | Item Description | |
| OBJECTID |
Internal feature number. |
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| DYNAMAP_ID |
A unique Tele Atlas(R) railroad segment identifier. There are nearly 1 million railroad segments in the Tele Atlas(R) database, each with a unique record ID. |
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| NAME |
The primary name of all valid FCC B segments is the railroad company that owns and operates the rail. |
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| FCC |
The feature class code that the railroad segment is associated with. Tele Atlas(R) FCCs are similar to the Census Bureau's CFCCs used in their TIGER(R) files. Valid entries are: B1*: railroad main line; B2*: railroad spur track; B3*: railroad yard track; B4*: railroad with special characteristics; B5*: railroads as other thoroughfare. |
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| DESCRIPT |
Description field based on NAME |
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| FGDLAQDATE |
FGDL added field based on date downloaded from source |
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| SHAPE |
Feature geometry. |
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| AUTOID |
Unique ID added by GeoPlan |
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| SHAPE.LEN |
Length in meters |
At a minimum, the Railroad layer contains B* FCC segments consistent with the Census Bureau's CFCCs. Contiguous segments are chained by Name and County. The Railroad layer is not generalized. |
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 purpose of the Railroad layer is to represent the locations of the railroad systems in the U.S. and Puerto Rico. The Railroad layer can be used in conjunction with Street and Landmark layers to create visually appealing maps. |
At a minimum, horizontal accuracy is consistent with Census 1990 TIGER/Line(R) files. The Tele Atlas(R) on-going realignment work includes realigning railroad segments. |
This data is provided 'as is' and its vertical positional accuracy has not been verified by GeoPlan |
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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 |
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Tele Atlas(R) extracts the dataset quarterly from the Tele Atlas(R) database using proprietary software. Data then is 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 flxxxrr to gdt_railroads_jan09shp 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 Process Date: 20090216 |
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:
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Tele Atlas(R) Tele Atlas 11 Lafayette Street Lebanon, NH 03766 (800)331-7881 |
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