Measuring the structural vulnerability of road network: A network efficiency perspective |
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Authors: | Hong-ying Yin Li-qun Xu |
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Institution: | Antai College of Economics & Management, Shanghai Jiaotong University, Shanghai 200052, China |
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Abstract: | The purpose of this paper is to identify the critical road sections and intersections in a road network which have great influence
on the normal transport functions of the road network and to optimize the road network structure by reducing its vulnerability.
In this paper, the framework of road network structural vulnerability measurement and improvement model is proposed. The network
efficiency model is used to define road network structural vulnerability. Shanghai freeway network is analyzed based on this
model. We find that using this model the critical components of the road network can be identified. Two methods which are
increasing connections and rewiring are proposed to optimize the road network structural vulnerability and the results can
be used to reduce the network vulnerability. The measurement method that we put forward for structure vulnerability is useful
and important to optimize road network structure. |
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