Effect of freeway incidents and diversionary behavior on transportation network resiliency

An important role of transportation networks at scale of megaregion during an emergency evacuation is providing fast accessibility and safe mobility from the evacuation zone to safety. Disruptions on road networks throughout the evacuation potentially can put the safety of the people at risk. The resiliency of the network chiefly is functional recovery from performance reductions and costly delays which is a key element in at-risk situations. Although the initial level of functionality, type, and severity of an incident make an impact on the recovery time, in absence of external aid road users follow a diversionary behavior during the incident to alleviate the performance loss. There are different features that affect this behavior such as the location of the incident, the capacity, number of alternative routes, etc. In an effort to illustrate this diversionary behavior, this research will investigate the characteristics associated with road network resiliency under variation of incident features on megaregions. As a result, by considering the impact of diversionary behavior on the network the research team is able to evaluate the contrast in functional recovery in order to clarify the resiliency assessment specifically in the event of disasters.

Language

• English

Project

• Status: Active
• Funding: $70000
• Contract Numbers:

  69A3551747135

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Project Managers:

  Stearns, Amy

• Performing Organizations:

  Cooperative Mobility for Competitive Megaregions (CM2)

  University of Texas at Austin
  Austin, TX  United States  78712
• Principal Investigators:

  Wolshon, Brian

• Start Date: 20200601
• Expected Completion Date: 20200831
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Disaster resilience; Disasters and emergency operations; Evacuation; Freeways; Network analysis (Planning); Regions; Traffic diversion; Traffic incidents; Travel behavior
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; Security and Emergencies;

Filing Info

• Accession Number: 01735688
• Record Type: Research project
• Source Agency: Cooperative Mobility for Competitive Megaregions (CM2)
• Contract Numbers: 69A3551747135
• Files: UTC, RIP
• Created Date: Apr 2 2020 4:57PM