Health risks from infrastructure failures are not well understood, despite the potential widespread introduction of chemical, microbial, and physical contaminants, as well as service disruptions. Public health effects due to distribution infrastructure failures are the concern and responsibility of the local water utility, the health department, community medical care providers, and in special circumstances, emergency first response agencies. While the water utility is responsible for safe water, including the operation and maintenance of distribution infrastructure, other agencies including public health regulators, medical practitioners, and first responders (e.g., police, fire, others) also play a pivotal and active role when dealing with the impacts of infrastructure failures on the community. All agencies involved with some aspect of public health protection from infrastructure failures acknowledged that the true extent of health effects, while not yet well known or characterized, required a collaborative, interagency approach. The study identified methods to develop future collaborative efforts, which included improved understanding of the relationships and outcomes between infrastructure failure events and measured health outcomes, as well as the need to develop improved tools for the detection and monitoring of these events and community effects. This includes the need to develop/refine collaboration for interagency surveillance, response, and mitigation efforts for infrastructure failures. The study identified ways to improve interagency communication as well as potential opportunities for cross-training to improve understanding between stakeholders and to develop better collaborative relationships and programs.
TABLE 3.12 Number of Bridge Failures According to Failure Categories Types of Failures Construction Service Unknown ... where F T R = = Threat/hazard Failure severity level estimate estimate V = Vulnerability of structure to failure due ...
This book sets out a systematic approach to making long-term choices about national infrastructure systems, for practitioners, policy-makers and academics.
Accompanying CD-ROM contains annex tables detailing population attributable fractions, mortality, and disease burden for selected major risk factors.
GROUP 3 MODULES: LOW INCIDENCE/HIGH IMPACT EVENT COSTS Health Impacts Module Health issues may occur through two pathways. First, unexpected pressure fluctuations directly related to the failure may put people at risk of possible ...
Multiple uncertainties affect the seismic vulnerability assessment problem and need to be properly included in the described model. ... The second group contains uncertainty on physical damageability of components of all systems.
A risk-based methodology to manage scour at bridges with unknown foundations was developed by Stien and Sedmera (2006). It is based on estimating failure probabilities and the consequences of such a failure. A risk-based method for ...
Classification of the consequence index of pipeline failure Index Description Represented inputs Other possible ... quantity of persons affected by failure, Health risks – Pipe diameter – Public health risk – Service demand – Operating ...
In addition, we can estimate the consequence of failure. Risk is the product of these two properties of the threat–asset pair. In this example, the probability of puncturing the tire with a sharp object in the road is converted to a ...
Researchers have often adopted instrumental variables and fixed-effects models to address this concern. ... vary within a cluster (such as income in the household or infrastructure in a community) will be lost in the estimation process.
Estimating Risk of Contaminant Intrusion in Distribution Networks Using Fuzzy Rule-Based Modeling Rehan Sadiq, ... these failures have the potential to inflict harmful public health effects and increase public mistrust and complaints.