Impacts of Model Resolution on Transportation Network Criticality Rankings

Objective rankings of the criticality of transportation network infrastructure are essential for efficiently allocating limited adaptation resources and must account for network connectivity and travel demand. Road link criticality can be quantified by the total travel delay caused when the capacity of a road segment or link is disrupted or removed. These methods can use standard travel demand models, but the exclusion of lower-volume roads and the aggregate nature of traffic analysis zones may distort resulting criticality rankings. To test the impact of link exclusion and demand aggregation, the authors applied the network robustness index, a well-established link criticality measure, to a hypothetical network with varying levels of network resolution and demand aggregation. The results show a statistically significant change in criticality rankings when demand is aggregated and especially when links are excluded from the network, suggesting that criticality rankings may be distorted when estimated with typical demand models. Application to a road network in Vermont supports the finding on the impact of network resolution on criticality rankings.

• Record URL:
  https://doi.org/10.3141/2653-11
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• Authors:
  • Dowds, Jonathan
  • Sentoff, Karen
  • Sullivan, James L
  • Aultman-Hall, Lisa
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 93–100
• Monograph Title: Planning Applications
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2653
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Connectivity; Infrastructure; Networks; Origin and destination; Ranking (Statistics); Resource allocation; Travel demand
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting;

Filing Info

• Accession Number: 01628702
• Record Type: Publication
• ISBN: 9780309441599
• Report/Paper Numbers: 17-05624
• Files: PRP, TRIS, TRB, ATRI
• Created Date: Mar 8 2017 5:09PM