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A Robustness Analysis of Korea Expressway Network

  • Lee, Sung-Geun (Dept. of Computer Engineering, Kyung Hee University) ;
  • Han, Chi-Geun (Dept. of Computer Engineering, Kyung Hee University)
  • Received : 2020.11.06
  • Accepted : 2021.03.10
  • Published : 2021.04.30

Abstract

Some sections of the highway are closed due to disasters and accidents. In this situation, it analyzes what kind of situation occurs due to functional failure in the highway network. The domestic highway network can be expressed as a graph. Blocking some sections of the highway can turn into a national disaster. In this paper, we analyze the robustness of the domestic highway network. The robustness of expressways refers to the degree to which the traffic conditions of the domestic expressway network deteriorate due to the blockage of some sections. The greater the robustness, the smaller the effect of some blocking appears. This study is used to evaluate the congestion level of one section of the transportation network, and a value obtained by dividing the section traffic volume (V) by the section traffic volume (C) is used. This study analyzes the robustness of highways by using the actual traffic volume data of the departure and arrival points of domestic highways, and analyzes the changes in traffic volume due to partial blockage through experimental calculations. Although this analysis cannot reflect the exact reality of domestic highways, it is judged to be sufficient for the purpose of confirming the basic robustness of the overall network.

재난과 사고로 인해 고속도로 일부 구간이 폐쇄되는 경우가 발생한다. 이런 상황에서 고속도로 망에 기능적으로 어떠한 상황이 발생하는지를 분석한다. 국내의 고속도로 망은 하나의 그래프로 표현할 수 있다. 고속도로의 일부 구간의 차단은 국가적인 재앙으로 번질 수 있다. 본 논문에서는 국내 고속도로 망의 강건성을 분석한다. 고속도로의 강건성은 일부 구간의 차단에 따라 국내 고속도로 망의 교통 통행 상황이 어느 정도 나빠지는지를 말한다. 강건성이 클수록 일부 차단의 효과가 작게 나타난다. 교통망의 하나의 구간의 혼잡도를 평가하기 위해 사용하는 방법으로 구간교통량(V)을 구간의 교통용량(C)으로 나누는 값을 사용한다. 본 연구는 국내 고속도로의 출발지점, 도착지점의 실제 교통량 데이터를 이용하여 고속도로의 강건성을 분석하고, 일부 차단에 따른 교통량의 변화를 실험계산을 통해 분석한다. 본 분석이 실제 국내 고속도로의 정확한 실상을 반영할 수는 없지만, 전체적인 망의 기초적인 강건성을 확인하는 목적으로 충분할 것으로 판단된다.

Keywords

References

  1. Korean Statistical Information Servicel, https://kosis.kr/.
  2. Kyung Tae Kim, Jaemin Song, "Robustness Assessment of the Road Network in Seoul Using Changes in Average Path Time", Research of Seoul City, Vol. 18, No. 2, 81-93. Aug. 2017.
  3. Aura Reggiani, Peter Nijkamp, Diego Lanzi, "Transport resilience and vulnerability: The role of connectivity", Transportation Research Part A, 4-15, 2015.
  4. Darren Scott, David Novak, Lisa Aultman-Hall, Lisa Aultman-Hall, "Network Robustness Index: A new method for identifying critical links and evaluating the performance of transportation networks", Journal of Transport Geography, 14(3), 215-227, 2016. https://doi.org/10.1016/j.jtrangeo.2005.10.003
  5. James L. Sullivan, David Novak, L. Aultman-Hall, Darren M Scott, "Identifying critical road segments and measuring system-wide robustness in transportation networks with isolating links: A link-based capacity-reduction approach", Transportation Research Part A Policy and Practice 44(5), 323-336, 2010. https://doi.org/10.1016/j.tra.2010.02.003
  6. Yunseung Noh, Myungsik Do, "Determination of Emergency Evacuation Roads Considering Road Network Function and Connectivity", The Korea Institute of ITS Journal, Vol. 13, No. 6, 34-42, 2014.
  7. Amila Jayasinghe, Kazushi Sano, Hiroaki Nishiuchi, "Explaining Traffic Flow Patterns Using Centrality Measures", International Journal for Traffic & Transport Engineering, Vol. 5, Issue 2, 134-149, 2015. https://doi.org/10.7708/ijtte.2015.5(2).05
  8. Sybil Derrible, "Network Centrality of Metro Systems", PLOS One, Vol.7 No.7. 2012.
  9. Tae-Soo Cho, Chi-Geun Han, and Sang-Hoon Lee. "Measurement of graphs similarity using graph centralities." JKCSI, 57-64, 23. Dec. 2018.
  10. Daniela Bremmer, Keith C. Cotton, Dan Cotey, Charles E. Prestrud, Gary Westby, "Measuring Congestion: Learning from Operational Data", Transportation Research Record 1895, pp.188-196, 2004. https://doi.org/10.3141/1895-24
  11. Gilbert, Edgar N. "Random graphs." The Annals of Mathematical, Vol. 30, No. 4. pp. 1141-1144, Dec. 1959.
  12. Ministry of Land, Infrastructure and Transport, Pre-Publication Information Board, http://www.molit.go.kr/.
  13. Korea Expressway Corporation Highway Public Data Portal, http://data.ex.co.kr/