Development of Risk Models for Florida's Bridge Management System

Florida Department of Transportation (FDOT) has been actively implementing the American Association of State Highway Transportation Officials (AASHTO) Pontis Bridge Management System (BMS), recently renamed AASHTOWare Bridge Management (BrM), to support network-level and project-level decision making in the headquarters and district offices. This system is an integral part of a Department-wide effort to improve the quality of asset management information provided to decision makers. With the success of FDOT‟s previous research efforts, it was necessary to extend bridge management tools and processes to an area that is receiving increasing attention nationally: risk management. The state of Florida is exposed to risk on its bridges from many natural and man-made hazards, including hurricanes, tornadoes, flooding and scour, and wildfires, as well as advanced deterioration, fatigue, collisions, and overloads. This study developed a comprehensive framework and components of a risk model for these listed hazards. For each hazard, historical data were utilized to develop risk assessment models which predicted the likelihood of such events and also quantified the consequences of the hazard event. Sources of data with several years of recorded events included the following: the Department‟s databases on bridge inventory and inspection; District‟s records of damage after hazards; NOAA‟s climatic data; FEMA; and the Florida Department of Forestry. The research identified the types of bridges (design type and material type) and specific bridge elements that are most vulnerable to damage under the hazard events. The overall risk model was used to identify the top 20 bridges that are most vulnerable under each of the hazard types. Finally, recommendations are presented as well as modifications to the Project Level Analysis Tool (PLAT).

• Record URL:
  https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/research/reports/fdot-bdk83-977-11-rpt.pdf
• 
• Summary URL:
  https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/research/reports/fdot-bdk83-977-11-sum.pdf
• Corporate Authors:

  Florida State University, Tallahassee

  Department of Civil Engineering, 2525 Pottsdamer Street
  Tallahassee, FL  United States  32310

  Paul D Thompson

  Consultant, 17035 NE 28th Place
  Bellevue, WA  United States  98008

  Florida Department of Transportation

  Research Center, 605 Suwannee Street, MS 30
  Tallahassee, FL  United States  32399-0450

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Sobanjo, John O
  • Thompson, Paul D
• Publication Date: 2013-6

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; References; Tables;
• Pagination: 298p

Subject/Index Terms

• TRT Terms: Asset management; Bridge management systems; Decision making; Fires; Hurricanes; Risk management; Tornadoes
• Geographic Terms: Florida
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I60: Maintenance;

Filing Info

• Accession Number: 01485402
• Record Type: Publication
• Contract Numbers: BDK83 977-11
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Jul 1 2013 9:58AM