Framework of calculating the measures of resilience (MOR) for intermodal transportation systems.

Details

• Creators:
  Zhang, Li ; Wen, Yi ; Huang, Zhitong ; Jin, Mingzhou
• Corporate Creators:
  Mississippi State University. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration ; Mississippi. Dept. of Transportation. Research Division
• Subject/TRT Terms:
  Improving Measure Of Resilience, Rerouting Intermodal Transportation Resilience (Materials) Intermodal Transportation, Resilience, Performance Evaluations,
• Publication/ Report Number:
  FHWA/MS-DOT-RD-10-220
• Resource Type:
  Tech Report
• Geographical Coverage:
  Mississippi
• Corporate Publisher:
  Mississippi. Dept. of Transportation
• Abstract:
  Recent catastrophic events, such as Hurricane Katrina, have accentuated the value of measures of resilience (MOR) for the response and
  
  restoration of transportation systems following a disaster and have therefore become a topic of great concern for transportation researchers.
  
  However, according to a review of current literature, a widely accepted method for evaluating MOR for transportation systems (especially in an
  
  intermodal context) has not been established. The objective of this report is to develop a framework for MOR calculation for intermodal
  
  transportation systems in response to disaster and to evaluate effectiveness of strategies for improving the MOR. Freight transportation
  
  resilience is the main concern in this report; however, to replicate actual traffic conditions, passenger transportation is also considered as a part
  
  of an integrated transportation system. For the MOR calculation procedure, TransCAD was used to model the research area network and
  
  generate transportation data. Pre-disaster and post-disaster population and employment data was collected at the county level and disaggregated
  
  to each Traffic Analysis Zone (TAZ) using linear equations. Then, based on the study area’s population and employment data, the network
  
  Origin-Destination (OD) traffic before and after the disaster was estimated using TransCAD. A series of resilience indicators in terms of
  
  mobility, accessibility, and reliability were selected to evaluate the intermodal system performance based on the TransCAD outputs. A
  
  Performance Index (PI) is further introduced which aggregates several resilience indicators to measure system performance regarding mobility.
  
  The Level of Service (LOS) of highway networks and intermodal terminals before and after a disaster were also determined according to their
  
  respective LOS standards. Based on these resilience indicators, MOR in this report is defined the percentages of system performance measures
  
  degraded. A formula was developed to produce quantitative values for intermodal system MOR with respect to mobility, accessibility, and
  
  reliability. The above process was reviewed in a case study of the Mississippi Gulf Coast region. The analysis demonstrated the effectiveness of
  
  the proposed MOR calculation procedure. In addition, strategies for improving MOR were studied, and because the impact of disaster to MOR
  
  was not significant, rerouting was proposed as a method for improvement. To evaluate the effectiveness of rerouting, experiments were
  
  explored using DynusT simulation. Results of this experimentation show that, in this case, rerouting is a valid method for MOR enhancement
  
  and that diversion delay is significant.
  
  
• Format:
  PDF
• Funding:
  State Study 220
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4e1d04a66e15fbb302add2a01d50727d01dc4c30a62fe62d36ffb0b4be96c26e3baa721f8f97f76f94e25b74f5f7ce5c1b1225852eae55ef8c8cc380c2053491
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/20325/dot_20325_DS1.pdf
• File Type:
  [PDF - 1.87 MB ]