The Age of Infrastructure in a Time of Security and Natural Hazards
The Age of Infrastructure in a Time of Security and Natural Hazards
复制标题
安全和自然灾害时代的基础设施时代
DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
R. Zimmerman
中科院分区:
文献类型:
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作者:
R. Zimmerman
The age of U.S. infrastructure connects in subtle ways with many other threats such as terrorism, natural hazards, and climate change that these facilities and services face. Many new infrastructure initiatives being introduced to address these threats are also likely to address many of the condition and performance problems of aging infrastructure. This paper evaluates a number of infrastructure areas to identify how measures of condition are associated with age as well as other factors such as environmental stresses, usage, design, and operations and maintenance practices. This type of knowledge is an important prerequisite to understanding how infrastructure age relates to infrastructure resilience in the face of extreme events. Introduction Age is one of many factors that affect the performance of infrastructure for its users and its robustness against threats posed by common environmental conditions external to a given infrastructure, extreme natural hazards, and terrorism. Infrastructure age often acts together with and may reinforce the effect of other factors such as design, maintenance, and operation in increasing the vulnerability of infrastructure to these various threats. This paper evaluates a number of infrastructure areas and types of hazards in order to identify to common themes with respect to the extent age is associated with infrastructure condition and performance as well as other factors such as environmental stresses, usage, design, and operations and maintenance practices that may also contribute to condition and performance problems. New initiatives in the way that infrastructure is designed can address both new public concerns such as sustainability and security and the problems of condition and performance to which age contributes. Infrastructure will be increasingly faced with threats that potentially compromise its integrity. This is supported by the increasing number of major federally declared disasters, increasing by about 2.7% per year between 1990 and 2005 (Simonoff, Restrepo, Zimmerman and Naphtali 2008) and the fact that most of the major hurricanes have occurred since 2000 (Blake, Rappaport, and Landsea 2007). Terrorist attacks, likewise, have targeted infrastructure, particularly transportation (Mineta Institute; summarized in Zimmerman and Restrepo 2009) and electric power (Simonoff, Restrepo and Zimmerman 2007).