Vol. 10(11) November 2017
Potential risk analysis of urban post-earthquake fire
based on attribute recognition and evidence theory
Liu Xiaoran, Wang Wei* and Dong Tingting
For the influence factors' complexity of urban post-earthquake
fire, the attribute recognition theory and the evidence theory were proposed for
the potential risk analysis of urban post-earthquake fire. First, the model of attribute
recognition based on the principle of maximum entropy was established to eliminate
all kinds of uncertainty to max; secondly, the evaluation indicators for urban post-earthquake
fire were presented in terms of urban disaster hazard, exposure and vulnerability
of disaster bearing body, disaster prevention and mitigation capability. Meanwhile,
the grading standards of evaluation index were given; finally, potential risk analysis
for post-earthquake fire within a city was provided to validate its efficiency and
feasibility by the evidence theory.
The results indicate that the middle and higher risk area will reach 50.20%, 61.00%
and 64.90% respectively when VI, VII, VIII-degree earthquake occurs. In this study,
we verify the application of attribute recognition and evidence theory for potential
risk assessment of urban post-earthquake fire and provide a measurable and achievable
approach for the potential risk assessment of urban post-earthquake fire.
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Noise mapping of a bauxite mine using measured noise
and GPS data
Tripathy Debi Prasad and Datrika Srinivas Rao*
This study aimed to produce a noise map by determining
the noise levels in the different parts of the bauxite mine and to compare them
with the Directorate General of Mines Safety (DGMS) prescribed permissible limits.
A total of 654 points whose positions are measured by Global Positioning System
(GPS), were collected from the mine at varying intervals according to the International
Organization for Standardization (ISO) and DGMS guidelines to measure sound pressure
levels. The GPS receiver interfaced with the real-time octave band analyzer allowed
simultaneous measurement of position and noise level data. Measured points are exported
to ArcGIS software for generating the noise map.
Results showed that noise levels were higher than the permissible limits in most
parts of the mine, the maximum and minimum average noise levels were 104 dB(A) and
50 dB(A), logarithmic mean equivalent A- weighted sound pressure level (LAeq) was
67 ± 12 and LAeq ranging between 81-90 dB (A) at workplaces of dozer and pay loader,
71-80 dB (A) at shovel working locations and 50-60 dB (A) at different haul roads
respectively. The results suggest that integrating noise data with GPS can enhance
visualization of the noise map and is likely to be more effective at informing policy
decision-making, and necessary steps to be taken against high noise levels.
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Intervention strategies to mitigate risk in adventure
tourism: A Haddon matrix perspective
Piramanayagam Senthilkumaran* and Seal Partho Pratim
Adventure tourism is a rapidly expanding tourism activity
around the world. The risk in adventure tourism is very real which may lead to tragedies.
There is an increasing number of people involved in adventure tourism without prior
knowledge and level of risk. The management of risk in adventure tourism is critical
for its sustainability. If the risk has not managed efficiently, it will lead to
loss of firms’ reputation, money and customer confidence.
The objective of this research is to develop a framework which may help tourism
planners and adventure tour operators in the identification of risk and to develop
strategies to mitigate and minimize the risk by applying Haddon matrix.
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Meta-synthetic evaluation of PPP project risk for
large-scale disaster prevention and control based on WSR
Wang Yanwei*, Huang Yi, Li Jing and Wang Wei
PPP model can effectively solve the problem that if implementation
efficiency of the large-scale disaster prevention project is not high, then how
to carry out comprehensive and scientific evaluation of project risk for large-scale
disaster prevention which is a difficult problem at present. According to the characteristics
changing over time, large-scale disaster prevention and control of PPP project risk
can be evaluated from three aspects: "history", "present" and "future". At the same
time, we should take into account the "Renli system", "Shili system" and "Wuli system"
of project risk for large-scale disaster prevention and control and establish comprehensive
evaluation model of PPP project risk for large scale disaster prevention and control
based on WSR through the example application.
The results show that the integrated evaluation method can be practical in realizing
the comprehensive evaluation of PPP project risk for large-scale disaster prevention
and control.
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Poor planning of underground pipe network responsible
for occurrence of urban inland inundation hazards in China
Guo An and Shanzhong Qi*
Although flood hazards are caused by the irrational land
use structure and pattern and the lack of consideration of physical environment
during urbanization in China, poor urban planning of underground pipe network is
also responsible for occurrence of urban inland inundation hazards which is being
a new type of human-made disaster in China owing to the poor urban planning of underground
pipe network.
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Resolution of dispersion image obtained from active
MASW survey
Taipodia Jumrik, Baglari Dipjyoti and Dey Arindam*
This review provides a critical overview of the various
aspects related to the Active MASW survey in terms of the wavefield generation,
data acquisition, dispersion analysis and the resolution of the dispersion image.
The precision of the outcome of an active MASW survey i.e. the obtained shear wave
velocity profile, depends largely on the resolution of the dispersion image which
in turn, is governed by the choice of several parameters related to data acquisition,
data pre-processing and image stacking. The review illustrates several gaps in the
understanding to develop a high-resolution dispersion image.
It is observed that there are no existing recommendations to generate a high-resolution
dispersion image, most of the guidelines being case-specific and site-sensitive.
This understanding opens up new vistas of research in the domain of developing a
high-resolution dispersion image from active MASW survey.
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