• Start Date: July 16, 2012
  • Event Start Time: 11:00 AM
  • Event End Time: 12:00 PM
  • Organizers: Gene Fiorini
  • Seminar Series: REU Seminar
  • Presenter(s): Lance Fiondella - University of Connecticut
  • Event Location: DIMACS Seminar room
  • Abstract: Transportation networks are vulnerable to disruptions from natural disasters and terrorist attacks. Due to the size and complexity of these networks, a quantitative method to identify the most vulnerable links is necessary. This talk presents a two player game to assess the vulnerability of the links comprising a network. The traffic management authority seeks to route travelers on the safest most convenient paths, while an attacker conspires to disable the links that will maximize network disruption. The realism of the router’s play is enhanced with concepts from transportation engineering, including a traffic assignment algorithm that considers the impact of congestion on travel time. We also define an interest function to capture the attacker’s desire to target crowded areas that possess high intrinsic value and are poorly defended. The approach is demonstrated on the cities of Anaheim, California and Chicago, Illinois. To simplify analysis, we visualize the results of the game by coloring roads according to their criticality.