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http://dx.doi.org/10.7470/jkst.2013.31.1.047

A Study on Arterial Road Network Improvement Based on Networking Analysis  

Jung, Kabchae (Dept. of Transportation System Research, The Seoul Institute)
Kang, Kyeong Pyo (Division for Future Transport & Strategy Planning, The Korea Transport Institute)
Kim, Jung Wan (ITS & Road Environment Division, Ministry of Land Transport and Maritime Affairs)
Publication Information
Journal of Korean Society of Transportation / v.31, no.1, 2013 , pp. 47-56 More about this Journal
Abstract
The present study proposed a methodology to analyze the networking efficiency of arterial road networks. The methodology was motivated to design three-dimensional networks and to analyze the networking ability quantitatively, which is a novel approach compared to existing methods depending on the two-dimensional network definition and the qualitative analysis for improving arterial road networks. The method considered the interdependence between high-level freeways and low-level highways, the ITS-based information for traffic and road conditions, and the physical networking. These three factors were quantified by a networking index (NI), and the networking efficiency was measured by a networking rate (NR). The present study proved that the networking efficiency (NR) was influenced by travel information sharing (i.e., ITS) and physical factors. This supports the fact that the integrated improvements of physical and ITS factors are necessary for an arterial road. The proposed method was applied for an actual arterial road network. It was found that the nation-wide NR was higher than that for the metropolitan area, which might be due to the difficulty in switching between high- and low-level networks and the lack of ITS functions in the metropolitan area.
Keywords
Network; Networking; Networking Index(NI); Networking Rate(NR); Structure Equation Model(SEM);
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