8th International Symposium on Transport Network Reliability (INSTR)

KTH Royal Institute of Technology are pleased to invite you to attend and participate in the 8th International Symposium on Transport Network Reliability (INSTR), which will be held in Stockholm on 24-26 June 2020. The INSTR series is the premier gathering for the world’s leading researchers and professionals interested in transport network reliability, to discuss both recent research and future directions in this increasingly important field of research. Transport networks support the full spectrum of human activities and their supporting supply chains, and when disaster strikes provide life lines for rescue services and survivors, so their reliability is a matter of global concern. The scope of the symposium includes all aspects of analysis and design to improve network reliability.

 

Topics

  •  User perception of unreliability and vulnerability
  •  Public policy and reliability of travel times
  •  The valuation and economics of reliability
  •  Network reliability modeling and estimation
  •  Transport network robustness and resilience
  •  Reliability of public transport and supply chains
  •  Travel behavior under uncertainty
  •  Vehicle routing and scheduling under uncertainty
  •  Risk evaluation and management for transport networks
  •  Traffic management (including ITS) to improve network reliability
  •  Evacuation and disaster relief distribution
  •  Network interdependencies and cyber security
  •  Reliability in the era of connected and automated vehicles

 

Important dates

  • Extended abstracts submission deadline: October 2019
  • Acceptance notification: January 2019
  • Final extended abstract submission deadline: March 2020

 

For the latest information, visit the conference webpage: www.instr2020.se

 

Please help us circulate the information to all who may be interested in contributing to the symposium!

Accessibility Analysis of Risk Severity

Recent working paper

Risk severity: Links by 30 minute accessibility loss should they be removed from the network
Risk severity: Links by 30 minute accessibility loss should they be removed from the network

Risk severity in transportation network analysis is defined as the effects of a  link or network failure on the whole system. Change accessibility (reduction in the number of jobs which can be reached) is used as an integrated indicator to reflect the severity of a link outage.  The changes of accessibility before-and-after the removing of a freeway segment from the network represent its risk severity. The  analysis in the Minneapolis – St. Paul (Twin Cities) region  show that links near  downtown Minneapolis have relative higher risk severity than those in  rural area. The geographical distribution of links with the highest risk severity displays the property that these links tend to be near or at the intersection of freeways. Risk severity of these links based on the accessibility to jobs and to workers at different time thresholds and during different dayparts are also analyzed in the paper. The research finds that network structure measures: betweenness, straightness and closeness, help explain the severity of loss due to network outage.

Keywords: GPS data, congestion, network structure, accessibility

Accessibility and the Ring of Unreliability

Recent working paper

Ring of Unreliability: 30 minute accessibility difference between 90th and 50th percentile speeds.
Ring of Unreliability: 30 minute accessibility difference between 90th and 50th percentile speeds.

Abstract: This study measures the variability of job accessibility via automobile for the Minneapolis-St. Paul region. The accessibility analysis uses cumulative opportunity measures. The travel times on the network are tested at various level (10th percentile speed, 50th percentile speed, 90th percentile speed) using the TomTom speed data for 2010. It is shown that accessibility varies widely day-to-day as travel speeds on the network vary. Some parts of the region (a ring around the core) have more volatility in accessibility (and are thus less reliable) than others.

Keywords: GPS data, congestion, network structure, accessibility, reliability

International Symposium on Transportation Network Reliability

International Symposium on Transportation Network Reliability
Save the Date and Call for Papers
July 22-23, 2010 University of Minnesota, Minneapolis, Minnesota
The aim of the International Symposium on Transportation Network Reliability (INSTR) is to bring together researchers and professionals interested in transportation network reliability to discuss both recent research and future directions in this increasingly important field of research. The scope of the symposium includes all aspects of analysis and design to improve network reliability, including:
• user perception of unreliability
• public policy and reliability of travel times
• the valuation of reliability
• the economics of reliability
• network reliability modelling and estimation
• transport network robustness
• reliability of public transportation
• travel behaviour under uncertainty
• vehicle routing and scheduling under uncertainty
• risk evaluation and management for transportation networks
• ITS to improve network reliability
Submission of Papers
Papers will be categorized and ranked by peer reviewers. Theoretical, empirical, case-study, and policy-oriented contributions are welcome. Papers must be submitted electronically at http://www.instr.org byDecember 23, 2009 for consideration.
Key Dates
• Papers Due: December 23, 2009
• Papers selected and submitted: January 2010
• Final Papers Due (subject to acceptance): February 2010
• Early Registration Deadline: June 1, 2010
• Conference: July 22-23, 2010
More Information
Visit the INSTR Web site at http://www.instr.org
David Levinson
RP Braun/CTS Chair in Transportation
University of Minnesota
dlevinson@umn.edu
Sara Van Essendelft
Conference Coordinator
University of Minnesota
612-624-3708
cceconf5@umn.edu
The conference is hosted by the Center for Transportation Studies at the University of Minnesota.