Assessing the Quality of Incident Investigations and its Effect on Safety Performance: a Study of the Ghanaian Mining Industry

2019 ◽  
Vol 36 (6) ◽  
pp. 1145-1154 ◽  
Author(s):  
Eric Stemn ◽  
Maureen E. Hassall ◽  
Carmel Bofinger ◽  
David Cliff
Keyword(s):  
Mining Industry ◽  
Safety Performance

Simple Index to Assess the Calibration Quality of Safety Performance Functions Based on Multiple Goodness-of-Fit Metrics

2021 ◽  
pp. 036119812110088
Author(s):  
Raul E. Avelar ◽  
Karen Dixon ◽  
Boniphace Kutela ◽  
Sam Klump ◽  
Beth Wemple ◽  
...  
Keyword(s):  
Goodness Of Fit ◽  
Synthetic Data ◽  
Calibration Procedure ◽  
Safety Performance ◽  
Absolute Deviation ◽  
Data Set ◽  
Safety Database ◽  
Simple Index ◽  
Safety Performance Functions

The calibration of safety performance functions (SPFs) is a mechanism included in the Highway Safety Manual (HSM) to adjust SPFs in the HSM for use in intended jurisdictions. Critically, the quality of the calibration procedure must be assessed before using the calibrated SPFs. Multiple resources to aid practitioners in calibrating SPFs have been developed in the years following the publication of the HSM 1st edition. Similarly, the literature suggests multiple ways to assess the goodness-of-fit (GOF) of a calibrated SPF to a data set from a given jurisdiction. This paper uses the calibration results of multiple intersection SPFs to a large Mississippi safety database to examine the relations between multiple GOF metrics. The goal is to develop a sensible single index that leverages the joint information from multiple GOF metrics to assess overall quality of calibration. A factor analysis applied to the calibration results revealed three underlying factors explaining 76% of the variability in the data. From these results, the authors developed an index and performed a sensitivity analysis. The key metrics were found to be, in descending order: the deviation of the cumulative residual (CURE) plot from the 95% confidence area, the mean absolute deviation, the modified R-squared, and the value of the calibration factor. This paper also presents comparisons between the index and alternative scoring strategies, as well as an effort to verify the results using synthetic data. The developed index is recommended to comprehensively assess the quality of the calibrated intersection SPFs.

scholarly journals Determination of the transfer step of the ore chute while mining the technogenic deposit of the bulk type

2020 ◽  
Vol 166 ◽  
pp. 02004
Author(s):  
Volodymyr Peregudov ◽  
Ihor Hryhoriev ◽  
Serhii Joukov ◽  
Yulian Hryhoriev
Keyword(s):  
Raw Materials ◽  
Mining Industry ◽  
Process Conditions ◽  
Geological Conditions ◽  
Scientific Task ◽  
Technogenic Deposit ◽  
Mining Works ◽  
The Cost

Further development of the open mining works on the domestic enterprises will be accompanied by the worsening of mining-geological conditions and declining of the quality of iron ore raw materials. In the same time, the accumulated mining wastes, that can make the technogenic deposits, pass into one of the important sources of the mineral raw materials. Taking into account this thing, the development and implementation of the modern technological circuits of the technogenic deposit development is an actual calling for mining industry, and determination and optimization of process conditions of the technogenic deposit development – is the scientific task of this publication. The obtained results of studies of the optimum step value of the ore chute transfer during the technogenic deposit development can be used by design organizations and mining enterprises for designing works. The obtained methodology and the proposed mathematical dependencies will reduce the cost of mining of the technogenic deposit due to the reasonable timely transfer of the open ore chute.

scholarly journals Approaches to Evaluation of Environmental and Economic Damage to the Kuzbass Agglomeration Caused by Coal Mining Industry Development

2019 ◽  
Vol 134 ◽  
pp. 03009
Author(s):  
Piotr Kosinskiy ◽  
Vladimir Merkuriev ◽  
Aleksey Medvedev
Keyword(s):  
Quality Of Life ◽  
Environmental Pollution ◽  
Coal Mining ◽  
Mining Industry ◽  
Economic Damage ◽  
Negative Consequences ◽  
Coal Mining Industry ◽  
Regional Product ◽  
The Impact

The article is devoted to the study of coal mining industry problems in a region and environmental and economic damage caused by its activities. It is found that the intensive development of coal mining industry is accompanied by negative environmental consequences associated with the impact on social and economic indicators of a region and the quality of life of the population. The methodology for analysis and evaluation of environmental and economic damage to a regional economy based on the loss of gross regional product (GRP) and associated with the loss of working time due to the incidence of the population, determined by the level of environmental pollution, was developed. The developed methodology solves the problem of evaluating the impact of environmental components not only on environmental and economic damage, characterized by GRP losses, but also on the quality of life of the population. In addition, the optimization nature of the presented model allows finding the economic potential of producers and the objective efficiency of enterprises, which will make it possible to compensate for damage caused by environmental pollution that is adequate to the negative consequences of their activities.

The Influence of the Feed Rate on the Quality of Surfaces Processed by AWJ at High Pressures

2013 ◽  
Vol 837 ◽  
pp. 196-200
Author(s):  
Carol Schnakovszky ◽  
Eugen Herghelegiu ◽  
Crina Radu ◽  
Ion Cristea
Keyword(s):  
Automobile Industry ◽  
Feed Rate ◽  
Food Industry ◽  
High Pressures ◽  
Mining Industry ◽  
Water Jet ◽  
Abrasive Water Jet ◽  
Metallic Materials ◽  
Wood Industry

Abrasive water jet processing is one of the newest unconventional technologies. It can be used to cut different metallic materials (steel, titanium alloys, aluminium alloys, brass) or non-metallic materials (wood, plastics, glass, stone, granite etc.). Therefore, this technology can be successfully applied in different industries as: food industry, wood industry, aeronautic industry, automobile industry, mining industry. Between the advantageous of abrasive water jet processing technology it is worth noticing the following: it is rapid, very small processing forces are generated, it is silent, no thermal distortions occur. The aim of the current paper was to determine the influence of the feed rate on the quality of surfaces processed by AWJ at high pressure. The parameters that quantified the quality of the processed surface were those defined in the ISO/WD/TC 44 N 1770 standard: width of the processed surface at the jet inlet (Li), width of the processed surface at the jet outlet (Lo), deviation from perpendicularity (u), inclination angle (α) and roughness (Ra).

scholarly journals The impact of physical and psychosocial risks on employee well-being and quality of life: The case of the mining industry in Ghana

2014 ◽  
Vol 65 ◽  
pp. 28-35 ◽  
Author(s):  
Kwesi Amponsah-Tawiah ◽  
Stavroula Leka ◽  
Aditya Jain ◽  
David Hollis ◽  
Tom Cox
Keyword(s):  
Quality Of Life ◽  
Mining Industry ◽  
Well Being ◽  
Psychosocial Risks ◽  
The Impact

THE PERFORMANCE OF ENVIRONMENTAL IMPACT ASSESSMENT IN THE EXPLOSIVES MANUFACTURING INDUSTRY IN SOUTH AFRICA

2013 ◽  
Vol 15 (03) ◽  
pp. 1350013 ◽  
Author(s):  
LUKE ALAN SANDHAM ◽  
FELICITY VAN DER VYVER ◽  
FRANCOIS PIETER RETIEF
Keyword(s):  
South Africa ◽  
Environmental Impact ◽  
Environmental Impacts ◽  
Manufacturing Industry ◽  
Mining Industry ◽  
Quality Of Information ◽  
Quality Review ◽  
Potential Contributor ◽  
Satisfactory Quality

Explosives manufacture in South Africa is a major component of the chemical and mining industry, and as an important producer of hazardous chemicals it is also a potential contributor to significant environmental impacts. Environmental authorisation of explosives manufacturing activities is based primarily upon the quality of information made available in the Environmental Impact Report (EIR), but the quality of EIR for explosives manufacturing projects has never been investigated. A modified version of the Lee and Colley review package was used to determine the EIR quality of a sample of four explosives projects. The findings reveal that the EIRs were of a generally satisfactory quality, but with some areas of weakness that are readily linked to potentially significant environmental impacts, pointing to limitations in the EIA process regarding the production of explosives. Recommendations include improved training of EIA practitioners, the use of quality review checklists and external specialist review, development of guidelines and the use of risk assessment as additional tools to the EIA regulations.

A Double-Blind, Randomised, Placebo-Controlled Trial of Cytisine for Smoking Cessation in Medium-Dependent Workers

2008 ◽  
Vol 3 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Denis Vinnikov ◽  
Nurlan Brimkulov ◽  
Aichurek Burjubaeva
Keyword(s):  
Working Conditions ◽  
Controlled Trial ◽  
Mining Industry ◽  
Individual Counseling ◽  
Double Blind ◽  
Randomized Controlled ◽  
High Relapse Rate ◽  
Continuous Abstinence ◽  
Effective Medication

AbstractAmong many studies on cytisine only a few have been controlled trials, and the aim of this study was to assess the efficacy of cytisine in a randomized controlled double-blind trial compared to placebo in medium-dependent smoking men working in mining industry. Materials and methods: 171 middle-aged smokers were randomised to either cytisine (25-days regimen) or placebo; both groups received individual counseling with brochure. Self-reported continuous abstinence was assessed at 8 and 26 weeks. Results: At the end of week 8 there were no differences in number of abstinent subjects, but at 26 weeks 10.6% of subjects were abstinent in cytisine group compared to 1.2% in placebo (p = .01). In both groups, we did not find any weight increase, but quality of life improved in both groups, and physical and social functioning improved in cytisine group. Conclusions: Cytisine may be an effective medication to help smokers quit even for those working in difficult working conditions with high relapse rate.

Factors Influencing Health and Safety Performance in New Zealand

1986 ◽  
Vol 28 (4) ◽  
pp. 521-533 ◽  
Author(s):  
Barbara McIntosh ◽  
Michael A. Gurdon
Keyword(s):  
New Zealand ◽  
Health And Safety ◽  
Influential Factors ◽  
Safety Performance ◽  
Environmental Pressures ◽  
Industrial Sectors ◽  
Factors Influencing ◽  
Government Rules ◽  
The Relationship

Multiple environmental pressures, both internal and external to the organization, are examined as factors influencing the administration of health and safety programmes and subsequent accident performance. Data were collected from seven industrial sectors in New Zealand. Those firms with better safety records indicated that the most influential factors shaping their policies included government rules and regulations and demonstrated employee concerns and demands. The quality of the relationship with the union and the locus of enterprise ownership also play a significant role in the effectiveness of health and safety administration.

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