Impact of Reconstruction Strategies on System Performance Measures: Maximizing Safety and Mobility While Minimizing Life-Cycle Costs

The objective of this research is to develop a general methodological framework for planning and evaluating the effectiveness of highway reconstruction strategies on the system’s performance measures, in particular safety, mobility, and the total cost of network rehabilitation. Transportation networks are characterized by uncertainty that stems from different sources and transportation planners should consider risks involved in uncertainty in model parameters. In this research, Conditional Value at Risk (CVaR) is used to quantify and measure the risk in pavement performance and travel demand. First, a method of constructing risk‐based rehabilitation policies for a network of pavement facilities that ensures a specific quality level is introduced. Second, to enhance network mobility, several optimization models to minimize travel time for all paths connecting the same origin and destination pair is presented. Finally, to improve network safety during capacity expansion decisions, two models are presented to reduce accident rate by changing the ratio of flow to the link capacity to reduce injury and fatal accidents and property damage accidents.

• Record URL:
  • http://utcm.tamu.edu/publications/final_reports/Damnjanovic_07-04.pdf
• 
• Supplemental Notes:
  • This research was supported by a grant from the U.S. Department of Transportation, University Transportation Centers Program.
• Corporate Authors:

  University Transportation Center for Mobility

  Texas Transportation Institute, Texas A&M University System
  College Station, TX  United States  77843-3135

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Damnjanovic, Ivan D
  • Wimsatt, Andrew J
  • Butenko, Sergiy I
  • Seyedshohadaie, Reza
• Publication Date: 2008-12-8

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 49p

Subject/Index Terms

• TRT Terms: Crash rates; Highway capacity; Highway safety; Life cycle costing; Mobility; Pavement performance; Reconstruction; Rehabilitation; Risk analysis; Strategic planning; Traffic flow; Travel demand; Travel time
• Uncontrolled Terms: Risk based maintenance
• Subject Areas: Highways; Maintenance and Preservation; Safety and Human Factors; I60: Maintenance; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01124563
• Record Type: Publication
• Report/Paper Numbers: UTCM #07-04
• Contract Numbers: DTRT06-G-0044 (Grant)
• Files: UTC, TRIS, USDOT
• Created Date: Mar 23 2009 3:02PM