通行可能確率分布を考慮した道路網の防災性能評価手法の構築 : パーコレーション理論に基づいた地区レベル道路網の防災性能評価に関する基礎研究(その2)

抄録

The purpose of this study is to construct a fundamental evaluation theory for the various functions of a road network in district scale from the city scale viewpoint. This theory is based on Percolation Theory because of some similarities between road blockade by houses collapse and the site process percolation model of Square lattice. The distinction of this theory is that the function of road network after an earthquake will be evaluated for any size district, if average probability of road blockade and road shortage in a district is given. In this paper, we explain in detail that in the constructing process of this theory we consider the distribution of passable probability of each road which compose a road network, and we indicate an evaluation method of the road network function focusing on the fire fighting difficulty.