IOWA DEPARTMENT OF TRANSPORTATION STATEWIDE COORDINATED GIS

This paper details a project conducted by the Iowa Department of Transportation (DOT) and the Center for Transportation Research and Education (CTRE) to construct a statewide coordinated Geographic Information System (GIS). This effort was undertaken in response to increased pressures on transportation agencies to improve their efficiency and accountability through performance- based planning. The first step in response to this pressure was to better integrate the disparate data throughout the Iowa DOT. The project team conducted interviews of data collectors, managers, and users. They then identified key data elements, determined the system architecture need to support and maintain the DOT's data, and created the necessary data conversion procedures to populate the GIS database. As most transportation data are spatial in nature, GIS was the logical choice for data integration. Implementation of the Statewide Coordinated GIS is progressing at the Iowa DOT using GIS, data warehousing, Local Area Network (LAN), and Wide Area Network (WAN) technologies. Internet and CDROM solutions will be used to distribute data to organizations external to the Iowa DOT. While these methods facilitate the sharing of data, it is very important that the DOT design a comprehensive data maintenance, metadata, and distribution strategy so that well documented data are provided on a regular cycle. A graphical user interface will provide a straightforward method of accessing the disparate data sources without requiring the end user to be familiar with the complexities of the underlying data sources. An interface to provide online metadata to the end user is also part of the system development.

• Record URL:
  http://www.ctre.iastate.edu/pubs/crossroads/187iowa.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/096523102X
• Corporate Authors:

  Iowa State University, Ames

  Center for Transportation Research and Education
  2711 South Loop Drive, Suite 4700
  Ames, IA  United States  50010-8664
• Authors:
  • Schuman, W G
  • Strauss, T
  • Gieseman, D
  • Souleyrette, Reginald Roy
• Conference:
  • Crossroads 2000
  • Location: Ames, Iowa
  • Date: 1998-8-19 to 1998-8-20
• Publication Date: 1998

Language

• English

Media Info

• Features: Figures;
• Pagination: p. 187-191
• Monograph Title: CROSSROADS 2000 PROCEEDINGS

Subject/Index Terms

• TRT Terms: Computer architecture; Coordination; Databases; Geographic information systems; Information dissemination; Integrated systems; Local area networks; Metadata; User interfaces (Computer science); Wide area networks
• Uncontrolled Terms: Data distribution; Data maintenance; Data warehousing
• Geographic Terms: Iowa
• Subject Areas: Data and Information Technology; Highways; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00770494
• Record Type: Publication
• ISBN: 096523102X
• Files: TRIS
• Created Date: Oct 14 1999 12:00AM