Journal•ISSN: 1076-0342
Journal of Infrastructure Systems
American Society of Civil Engineers
About: Journal of Infrastructure Systems is an academic journal published by American Society of Civil Engineers. The journal publishes majorly in the area(s): Pavement management & Risk management. It has an ISSN identifier of 1076-0342. Over the lifetime, 1128 publications have been published receiving 32600 citations. The journal is also known as: ASCE journal of infrastructure systems.
Topics: Pavement management, Risk management, Critical infrastructure, Asset management, Resilience (network)
Papers published on a yearly basis
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TL;DR: In this article, a Leontief-based infrastructure input-output model is developed to enable an accounting of the intraconnectedness within each critical infrastructure as well as the interconnectedness among them.
Abstract: Wassily Leontief received the 1973 Nobel Price in Economics for developing what came to be known as the Leontief input-output model of the economy. Leontief's model enables understanding the interconnectedness among the various sectors of an economy and forecasting the effect on one segment of a change in another. A Leontief-based infrastructure input-output model is developed here to enable an accounting of the intraconnectedness within each critical infrastructure as well as the interconnectedness among them. The linear input/output model is then generalized into a generic risk model with the former as the first-order approximation. A preliminary study of the dynamics of risk of inoperability is discussed, using a Leontief-based dynamic model. Several examples are presented to illustrate the theory and its applications.
570 citations
TL;DR: In this article, the use of highfrequency structural excitations through a surface-bonded piezoelectric sensor/actuator is proposed to detect changes in structural point impedance due to the presence of damage.
Abstract: This paper presents experimental evidence on the use of the impedance-based health-monitoring technique on components typical of civil structures. The basic principle behind this technique is to utilize high-frequency structural excitations (typically >30 kHz) through a surface-bonded piezoelectric sensor/actuator to detect changes in structural point impedance due to the presence of damage. Real-time damage detection on composite-reinforced concrete walls was investigated and the capability of this technique to detect imminent damage, well in advance of actual failure, was confirmed. Concepts that directly applied to this technique itself, such as effects of boundary condition changes and the effects of temperature changes, were also investigated. Experimental investigations were carried out on a 1/4-scale bridge element and a pipe joint commonly found in civil structures, to verify robustness of the technique to changes in environmental conditions. Data collected from the tests demonstrate the capabilit...
460 citations
TL;DR: Sustainability of transportation systems is an important activity as evidenced by a growing number of initiatives around the world to define and measure sustainability in transportation planning and infrastructure provision as discussed by the authors. But there is no standard definition for transportation system sustainability, it is largely defined through impacts of the system on the economy, environment, and general social well-being.
Abstract: Addressing the sustainability of transportation systems is an important activity as evidenced by a growing number of initiatives around the world to define and measure sustainability in transportation planning and infrastructure provision. This paper reviews major initiatives in North America, Europe, and Oceania. The purpose is to characterize the emergent thinking on what constitutes transportation sustainability and how to measure it. While there is no standard definition for transportation system sustainability, it is largely being defined through impacts of the system on the economy, environment, and general social well-being; and measured by system effectiveness and efficiency, and the impacts of the system on the natural environment. Frameworks based on important causal relationships between infrastructure and the broader environment, infrastructure impacts on the economy, environment, and social well-being; and the relative influence of agencies over causal factors, are largely being used to develop and determine indicator systems for measuring sustainability in transportation systems. Process-based approaches involve community representatives and other stakeholders in planning and present opportunities to educate the public and influence collective behaviors. These frameworks can be used collectively to help agencies refine their visions as well as develop policies, planning procedures, and measurement and monitoring systems for achieving sustainable transportation systems.
458 citations
TL;DR: Some future research directions that are aimed at transitioning the concept of energy harvesting for embedded SHM sensing systems from laboratory research to field-deployed engineering prototypes are defined.
Abstract: This paper reviews the development of energy harvesting for low-power embedded structural health monitoring (SHM) sensing systems. A statistical pattern recognition paradigm for SHM is first presented and the concept of energy harvesting for embedded sensing systems is addressed with respect to the data acquisition portion of this paradigm. Next, various existing and emerging sensing modalities used for SHM and their respective power requirements are summarized followed by a discussion of SHM sensor network paradigms, power requirements for these networks, and power optimization strategies. Various approaches to energy harvesting and energy storage are discussed and limitations associated with the current technology are addressed. The paper concludes by defining some future research directions that are aimed at transitioning the concept of energy harvesting for embedded SHM sensing systems from laboratory research to field-deployed engineering prototypes. Finally, it is noted that many of the technologies discussed herein are applicable to powering any type of low-power embedded sensing system regardless of the application.
441 citations
TL;DR: The Inoperability Input-Output Model (IIM) as mentioned in this paper is based on Leontief's input-output model, which characterizes interdependencies among sectors in the economy and analyzes initial disruptions to a set of sectors and the resulting ripple effects.
Abstract: The paper discusses the theory and methodology supporting the development of the inoperability input-output model (IIM). The IIM is based on Leontief’s input-output model, which characterizes interdependencies among sectors in the economy and analyzes initial disruptions to a set of sectors and the resulting ripple effects. An advantage of building on Leontief’s model is that it is supported by publications of the Bureau of Economic Analysis. Independent computer runs of the IIM can represent the entire nation or sectors within particular U.S. regions. A dynamic extension of the IIM analyzes different temporal frames of recovery and characterizes the required sector adjustments for achieving new production levels. The IIM can systemically prioritize and manage the sectors deemed to be economically critical and also identify those sectors whose continued operability is critical during recovery. A companion paper demonstrates applying the IIM to attacks on electric power and telecommunications.
360 citations