scholarly journals Risk Assessment of Public Safety and Security Mobile Service

Author(s):  
Matti J. Peltola ◽  
Pekka Kekolahti
2020 ◽  
Vol 143 ◽  
pp. 02009
Author(s):  
Tai-hua Yang ◽  
Jing Qin ◽  
Zhi-xiang Li

In recent years, the international situation has become more and more complex, and the regional conflicts have been escalating, and the risks of overseas public security have been increasing. Based on the four types of public security events, a public safety risk assessment index system of "one belt and one road" electric power investment project is established. Combining the Bayesian network model, and using fuzzy set and DS evidence theory, the public security risk level of the “Belt and Road” countries can be this method has been effectively verified and put forward countermeasures by an example.


CNS Spectrums ◽  
2019 ◽  
Vol 25 (5) ◽  
pp. 593-603
Author(s):  
Sarah L. Desmarais ◽  
Evan M. Lowder

Eligibility criteria for participation in mental health jail diversion programs often specify that, to be diverted, a candidate must not pose a level of threat to public safety that cannot be managed in the community. Risk assessment tools were developed to increase consistency and accuracy in estimates of threat to public safety. Consequently, risk assessment tools are being used in many jurisdictions to inform decisions regarding an individual’s appropriateness and eligibility for mental health jail diversion and the strategies that may be successful in mitigating risk in this context. However, their use is not without controversy. Questions have been raised regarding the validity and equity of their estimates, as well as the impact of their use on criminal justice outcomes. The purpose of this review is to provide an overview of the science and practice of risk assessment to inform decisions and case planning in the context of mental health jail diversion programs. Our specific aims include: (1) to describe the process and components of risk assessment, including differentiating between different approaches to risk assessment, and (2) to consider the use of risk assessment tools in mental health jail diversion programs. We anchor this review in relevant theory and extant research, noting current controversies or debates and areas for future research. Overall, there is strong theoretical justification and empirical evidence from other criminal justice contexts; however, the body of research on the use of risk assessment tools in mental health jail diversion programs, although promising, is relatively nascent.


2014 ◽  
Author(s):  
David J. Ball ◽  
Laurence Ball-King

Author(s):  
Kim Maddin ◽  
Dongliang Lu ◽  
Aleksandar Tomic

Abstract Small-diameter, low-pressure pipelines (operated at pressures below 40 percent of specified minimum yield strength [SMYS]) are unlikely to experience a rupture but may be vulnerable to leaks. In general, gas leaks result in less significant consequences to public safety than ruptures; however, under certain circumstances leaks may represent a significant threat. In particular, leaks resulting in belowground gas migration from low-pressure pipelines to a nearby confined space (e.g. the basement of a nearby structure to which the pipeline is not physically connected) may result in significant consequences as accumulation of gas to flammable or explosive levels may be possible. This paper explores the methods by which an Operator may address the threat of gas migration from leaks on low pressure pipelines in its risk assessment and leak management programs. Research was conducted into the specific conditions that contribute to belowground gas migration and included: a literature review of studies into gas migration phenomena, and a review of historical incidents within the United States on similar pipeline systems which resulted in significant property damage, injuries, or fatalities. The research included consideration of the effect of pipeline operating conditions, pipeline attributes (including diameter and depth of cover), leak duration, proximity of nearby structures, attributes of nearby structures (including presence of basements, slabs, and openings in the foundations), leak severity (e.g. pinhole, full separation), ground conditions (including soil permeability and presence of belowground features), and gas odorization. Key conditions impacting the potential for belowground gas migration are identified, and risk assessment methods and leak management practices are recommended based on the likelihood of migration. Based on the research conducted and the environmental conditions identified, a quantitative risk assessment approach, taking into account the likelihood of a leak on a low-pressure pipeline, the likelihood of belowground gas migration, and the potential consequences to public safety, is proposed.


Author(s):  
Le Wu ◽  
Jian Li ◽  
Yangzhi Ruan ◽  
Lie Sun ◽  
Quanyi Huang ◽  
...  

2014 ◽  
Vol 955-959 ◽  
pp. 1873-1876
Author(s):  
Jing Zhao Zhang ◽  
De Wen Li ◽  
Hong Gang Wang

Based on the special circumstances of public safety at the railway station region, the risk assessment index system of public safety in this area is built. Analytic Hierarchy Process is selected as the method of decision making and comprehensive assessment. Taking the characteristics and pattern of historic development of the public safety situation in Xi’an railway station region, the rationality of index weights is verified. Then, the risk assessment of public safety in Xi’an railway station region is conducted through expert investigation and grading. The results show that the system security level of Xi’an railway station region is grade II, the evaluation scores of B1, B2 and B3 are 83.5, 84.4 and 87.8 respectively, the indexes of index layer whose system security level in grade I contain C9, C14, C23, C24, C29, C30, C32 and C35.


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