Transportation in the Siliguri Corridor, West Bengal, India: distribution characteristics, trafficability, and geological environment
SUN Ang1(), YANG Qinghua1, LIU Zhi2(), CHEN Hua1, JIANG Xiao1, JIANG Shoumin2, BIAN Yu1, TIAN Li2
1. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing 100083, China 2. Sichuan Geological Survey Institute, Chengdu 610036, China
Remote sensing interpretation of the Siliguri Corridor, West Bengal, India was carried out based on 33 scenes of multispectral remote sensing images from GF-1 and GF-2 satellites, which cover an area of 154 814 km2. As a result, the mileage, density, and distribution of highways at all levels in the Siliguri Corridor were obtained, and the overall characteristics of the transportation in the area were ascertained. Then this paper assessed the trafficability in the selected key areas using the weighted scoring method from the aspects such as landform, lithology, geologic disasters, and road conditions. Furthermore, the factors such as the variation and relative decrease rate of whole network’s efficiency (ΔE and e) of 19 pivotal nodes were calculated using the complex network theory. They can be used to characterize the importance of pivotal nodes relative to the overall trafficability of the road network. For the four most important pivotal nodes, the geological environment characteristics (i.e., important targets, slope, and engineering rock and soil masses in the peripheries of the nodes) were analyzed and potential disasters and risks were proposed.
Wang R S, Tong L Q, Lin J, et al. Remote sensing technology and its application in geological exploration[J]. Acta Geologica Sinica, 2011, 85(11):1699-1743.
Fu C L, Yang Q H, Jiang Q G, et al. Application of remote sensing technique to geological survey abroad:A case study of Great Dyke,Zimbabwe[J]. Remote Sensing for Land and Resources, 2015, 27(4):85-92.doi: 10.6046/gtzyyg.2015.04.14.
doi: 10.6046/gtzyyg.2015.04.14
Zhang D, Lyu X B, Ge L S, et al. Research connotation and key technology of the military geological environment in the land battlefield[J]. Geological Review, 2019, 65(1):181-198.
Xu Z H, Yang X Q, Li C, et al. Research on overseas RS sampling inventory approach based on German NFI data[J]. Forest Resources Management, 2014(1):41-51.
Yang Q H, Chen H, Meng Y Y, et al. Geological remote sensing of national border and costal defense areas[R]. Beijing:China Aero Geophysical Survey & Remote Sensing Center for Natural Resources, 2018.
Yang Q H, Yu D H, Long F, et al. Skills requirement of geological remote sensing of national border and costal defense areas[S]. Beijing: Geological Publishing House, 2018.
[11]
郭瑞军. 基于间隙接受理论的环形交叉口通行能力研究[D]. 北京:北京交通大学, 2013.
Guo R J. Study on capacity of roundabouts based on gap acceptance theory[D]. Beijing:Beijing Jiaotong University, 2013.
Chen J Y. Study on morning commute problem considering variable capacity and parking space constraint[D]. Hefei:University of Science and Technology of China, 2019.
[13]
吴鼎新. 间歇优先公交专用道的通行能力及其影响研究[D]. 南京:东南大学, 2019.
Wu D X. Study on capacity of bus lane with intermittent priority and its impacts[D]. Nanjing:Southeast University, 2019.
Shao C Q, Zhang X Y, Luo K, et al. A review of estimating capacity in expressway work zones[J]. Journal of Wuhan University of Technology, 2021, 45(2):207-212.
[15]
Latora V, Marchiori M. Is the Boston subway a small-world network?[J]. Physica A:Statistical Mechanics and Its Applications, 2002, 314(1-4):109-113.
doi: 10.1016/S0378-4371(02)01089-0
[16]
Sen P, Dasgupta S, Chatterjee A, et al. Small-world properties of the Indian railway network[J]. Physical Review E, 2003, 67(3):036106.
doi: 10.1103/PhysRevE.67.036106
[17]
Angeloudis P, Fisk D. Large subway systems as complex networks[J]. Physica A:Statistical Mechanics and Its Applications, 2006, 367:553-558.
doi: 10.1016/j.physa.2005.11.007
[18]
金雷. 基于复杂网络的地域公路交通网抗毁性分析[D]. 长沙:国防科技大学, 2008.
Jin L. Survivability analysis of road traffic network in the area based on the complex network[D]. Changsha:National University of Defense Technology, 2008.
Pan G T, Ding J, Yao D S. Geological map of the Qinghai-Tibet Plateau and adjacent areas (1:1,500,000)[Z]. Chengdu: Chengdu Map Publishing House, 2004.
[21]
Geological Purnia Quadrangle Map (1:250,000)[Z]. Geological Survey of India, 1995.
[22]
Geological Dumka Quadrangle Map (1:250,000)[Z]. Geological Survey of India, 1998.