Impact Assessment of Heavy Precipitation on Network reliability

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Impact Assessment of Heavy Precipitation on Network reliability
胡大瀛,何偉銘,陳麗雯
Transportation Technology and Logistics Management
Management
[email protected]
Abstract
As the advancement of Intelligent Transportation Systems (ITS), real-time
information has been proved to be a vital solution to relieve traffic congestion.
However, most of the studies focus on normal traffic environment without considering
possible failure due to climate change. Climate change and associated impacts on
transportation and infrastructure have become an important issue around the world in
recent years. This research aims at assessing possible impacts of heavy precipitation
on network reliability under real-time information. Two reliability indexes, including
connectivity and travel time, are used to examine network reliability under heavy
precipitation. Numerical experiments are conducted to illustrate the impact of heavy
precipitation on network reliability. A real city network, the Jiaxian network, which is
heavily affected by Typhoon Morakot in Taiwan, is coded.
Keyword:network reliability, disabled roads, precipitation, typhoon
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