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Economic Feasibility Analysis of a Tunnel Section Enlargement Method That Does Not Halt Traffic Flow
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  • Journal title : The Journal of Engineering Geology
  • Volume 25, Issue 4,  2015, pp.459-472
  • Publisher : The Korea Society of Engineering Gelolgy
  • DOI : 10.9720/kseg.2015.4.459
 Title & Authors
Economic Feasibility Analysis of a Tunnel Section Enlargement Method That Does Not Halt Traffic Flow
Lee, Seung Soo; Kim, Dong-Gyou; Seo, Jong Won;
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 Abstract
A recently developed tunnel section enlargement method can maintain traffic flow during construction by using a protector. By keeping traffic flowing, it can minimize the lost time and costs associated with diversions and also the accompanying environmental pollution. On the other hand, installing the protector can lengthen the construction period and increase the direct cost. This paper presents a method for analyzing the economic feasibility of tunnel section enlargement methods considering the direct construction cost and the indirect social cost. The indirect costs are divided into categories of: vehicle driving cost, travel time delay cost, and environmental pollution cost. The economic efficiency of existing technology is compared with the new method in an case study of Namsan Tunnel 3.
 Keywords
economic feasibility analysis;tunnel section enlargement method;direct cost;indirect cost;
 Language
Korean
 Cited by
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