FLORIDA GEOGRAPHIC DATA LIBRARY DOCUMENTATION
VERSION 2003, RELEASED NOVEMBER, 2002.
TITLE: FDOT ROAD CHARACTERISTICS-BRIDGES
Geodataset Name: BRIDGE Geodataset Type: SHAPE Geodataset Feature: LINE
GENERAL DESCRIPTION:
This dataset contains bridge locations for FDOT Roads. (Refer to the Data Lineage Section of this document for information on using the FDOT RCI database and dynamic segmentation.)
DATA SOURCE(S): Florida Department of Transportation SCALE OF ORIGINAL SOURCE MAPS: 1:24,000 DATE OF AUTOMATION OR SOURCE: October 2001 GEODATASET EXTENT: State of Florida
FEATURE ATTRIBUTE TABLES:
Datafile Name:BRIDGE.SHP ITEM NAME WIDTH TYPE PRECISION SHAPE 9 SHAPELINE 0 BEGIN_POST 8 DECIMAL 3 END_POST 8 DECIMAL 3 STRUCTURE_ 6 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.
BEGIN_POST Begin mile post (XXX.XXX)
END_POST End mile post (XXX.XXX)
STRUCTURE_ Bridge number
USER NOTES:
The Florida Department of Transportation (FDOT), Transportation Statistics Office (TranStat) maintains traffic and roadway data in an Oracle database called Traffic and Roadway Information Systems (TRIS). The TranStat database contains transportation information relating to traffic count statistics and roadway features and characteristics for the purpose of state transportation planning and development. The TRIS database uses the Oracle relational database management system (RDBMS), the Structured Query Language (SQL), and Pro*C to create, manipulate, maintain, and access data. The data is stored in files called tables, where the tables are organized into rows and columns. Each row in a table is a record, and each column in a table represents a property of the object the table represents. Relational databases can then link tables together based on common properties. TRIS is composed of two main databases: Roadway Information System (RIS) and Traffic Information System (TIS). The Roadway Information System (RIS) is a collection of tables containing information necessary to uniquely identify a roadway segment and describe its features and characteristics. Traffic Information System (TIS) is a collection of tables containing information relating to traffic surveying, monitoring, and statistics. The data from the TIS and RIS databases are relatable to the arcs of the DOTRCI spatial dataset through a Dynamic Segmentation data model. Questions? Please call: Paul O'Rourke (850) 414-4732 Michael Dancy (850) 414-4717 Robert Hanson (850) 414-4722 A note concerning 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. 1:250000 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:
-Projected data to FGDL Albers HPGN (See "Map Projection Parameters" below). -Removed items ROAD_SIDE and ROADWAY.
REFERENCES:
Florida Department of Transportation
DATA LINEAGE SUMMARY:
The FDOT RCI database is updated monthly. This version of the database was downloaded from the FDOT ftp site (ftp://ftp.dot.state.fl.us) in October, 2001. The download contains the FDOT basemap route coverage and all associated relational tables. These tables can be used in conjunction with the basemap using dynamic segmentation. Using ArcView software, version 3.2a, dynamic segmentation was performed using the relational table named "BRIDGES" to create a shapefile of bridge locations on the FDOT roads.
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: Florida Department of Transportation, Transportation Statistics Office
Abbr.name: FDOT, Transtat Office
Address: 605 Suwannee St. MS27
Tallahassee, FL 32399
Phone: (850) 488-4111 x-119
Web site: http://www.dot.state.fl.us
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