scholarly journals Assessing the Safety Factors of Ship Berthing Operations

2014 ◽  
Vol 68 (3) ◽  
pp. 576-588 ◽  
Author(s):  
Wen-Kai Kevin Hsu
Keyword(s):  
Emergency Response ◽  
Relevant Literature ◽  
Safety Index ◽  
Safety Factors ◽  
Mooring Lines ◽  
Analytic Hierarchy ◽  
Factors Affecting ◽  
Managerial Implications ◽  
Ship Berthing ◽  
Hierarchy Process

The purpose of this paper is to discuss the safety of ship berthing operations in port. Based on the features of ship's berthing operations and relevant literature, the Safety Factors (SFs) of ship berthing at docks are first investigated. A Safety Index (SI) with a Fuzzy Analytic Hierarchy Process (AHP) model is then proposed to assess those SFs from port marine pilots, by which port managers and ship carriers may make policies to improve ship berthing safety. To validate the model, berthing operations at Kaohsiung Port in Taiwan were empirically investigated. The results indicate the main safety factors affecting ship berthing at port docks are: working concentration, the condition of mooring lines, emergency response, port policy of improving business and berth length. Based on those results, the theoretical and managerial implications for ship berthing safety at dock are finally discussed.

Analysis of the Safety Factors of Municipal Road Undercrossing Existing Bridge Based on Fuzzy Analytic Hierarchy Process Methods

2021 ◽  
pp. 036119812110318
Author(s):  
Yonghong Yang ◽  
Yu Chen ◽  
Zude Tang
Keyword(s):  
Safety Assessment ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Safety Evaluation ◽  
Safety Factors ◽  
Analytic Hierarchy ◽  
Road Engineering ◽  
Existing Bridges ◽  
Hierarchy Process ◽  
Engineering Projects

Increasing traffic volume and insufficient road lanes often require municipal roads to be reconstructed and expanded. Where a road passes under a bridge, the reconstruction and expansion project will inevitably have an impact on the bridge. To evaluate the safety impact of road engineering projects on bridges, this paper evaluates the safety of the roads and ancillary facilities of highway bridges involved in municipal road engineering projects. Based on a comprehensive analysis of the safety factors of municipal roads undercrossing existing bridges, a fuzzy comprehensive analytic hierarchy process (AHP) evaluation method for the influence of road construction on the safety of existing bridges is proposed. First, AHP is used to select 11 evaluation factors. Second, the target layer, criterion layer, and index layer of evaluation factors are established, then a safety evaluation factor system is formed. The three-scale AHP model is used to determine the weight of assessment indexes. Third, through the fuzzy comprehensive AHP evaluation model, the fuzzy hierarchical comprehensive evaluation is carried out for the safety assessment index system. Finally, the fuzzy comprehensive evaluation method is applied to the engineering example of a municipal road undercrossing an existing expressway bridge. The comprehensive safety evaluation of the existing bridge reflects the practicability and feasibility of the method. It is expected that, with further development, the method will improve the decision-making process in bridge safety assessment systems.

scholarly journals Socioeconomic Risks and Their Impacts on Ecological River Health in South Korea: An Application of the Analytic Hierarchy Process

2021 ◽  
Vol 13 (11) ◽  
pp. 6287
Author(s):  
Suyeon Kim ◽  
Sang-Woo Lee ◽  
Se-Rin Park ◽  
Yeeun Shin ◽  
Kyungjin An
Keyword(s):  
South Korea ◽  
Socioeconomic Factors ◽  
Ecosystem Health ◽  
Relative Importance ◽  
River Ecosystem ◽  
River Health ◽  
Analytic Hierarchy ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Hierarchy Process

It is imperative to develop a methodology to identify river impairment sources, particularly the relative impact of socioeconomic sources, to enhance the efficiency of various river restoration schemes and policies and to have an internal diagnosis system in place. This study, therefore, aims to identify and analyze the relative importance of the socioeconomic factors affecting river ecosystem impairment in South Korea. To achieve this goal, we applied the Analytical Hierarchy Process (AHP) to evaluate expert judgement of the relative importance of different socioeconomic factors influencing river ecosystem impairment. Based on a list of socioeconomic factors influencing stream health, an AHP questionnaire was prepared and administered to experts in aquatic ecology. Our analysis reveals that secondary industries form the most significant source of stream ecosystem impairment. Moreover, the most critical socioeconomic factors affecting stream impairment are direct inflow pollution, policy implementation, and industrial wastewater. The results also suggest that the AHP is a rapid and robust approach to assessing the relative importance of different socioeconomic factors that affect river ecosystem health. The results can be used to assist decision makers in focusing on actions to improve river ecosystem health.

scholarly journals Research and Planning Design of Traditional Village Tourism Pension Model—Taking Madiping Village in Longnan as an example

2020 ◽  
Vol 198 ◽  
pp. 04034
Author(s):  
Zhiwei Yang ◽  
Yuan Wang ◽  
Yingchang Xiang
Keyword(s):  
Old Age ◽  
Medical Rehabilitation ◽  
Cultural Value ◽  
Survey Analysis ◽  
Analytic Hierarchy ◽  
Factors Affecting ◽  
Planning And Design ◽  
Economic Revitalization ◽  
Production Value ◽  
Hierarchy Process

The tourism pension in traditional villages is based on the rural agricultural production value and tourism cultural value as the attraction, relying on the natural landscape, human customs, historical buildings and other resources of traditional villages. With Madiping village as an example, through the surrounding economic factors, climate environment, comfort, leisure, entertainment, medical rehabilitation, spirit culture and service facilities of these seven factors questionnaire survey analysis, hierarchical structure model is established by using Analytic Hierarchy Process (AHP), it is concluded that the present stage tourism endowment patterns relations, weights of factors affecting peasant casual is the trend of the development of local tourism endowment. On the basis of qualitative research, based on the protection of the historical features of traditional villages, the principle of rural tourism, leisure and old-age care was created, and the planning and design of remote tourism and old-age care was carried out in combination with rural resources and environment, so as to achieve the purpose and significance of promoting rural economic revitalization and regional development.

scholarly journals Development of autopoietic economic structures in the Baltic states: analysis of factors

Equilibrium ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. 319
Author(s):  
Mangirdas Morkunas ◽  
Viktorija Skvarciany ◽  
Jelena Titko
Keyword(s):  
Fuzzy Numbers ◽  
Value Added ◽  
Baltic States ◽  
Analytic Hierarchy ◽  
Factors Affecting ◽  
Business System ◽  
Business Structures ◽  
The Baltic ◽  
Open Markets ◽  
Hierarchy Process

Research background: Since the introduction of the concept in 1972 Autopoiesis has enjoyed great popularity among academicians representing various fields of science. However, the number of studies devoted to the investigation of factors that have an impact on the formation of autopoietic economic structures is quite limited. This paper addresses the gap in scientific research on autopoiesis of economic structures in small open markets, specifically in the Baltic States.Purpose of the article: The paper aims to identify and evaluate factors that turn on self-organization mechanisms of autopoietic economic structures in the Baltic States, in particular in Latvia.Methods: Expert survey was used to identify the most important factors affecting the for-mation of meso-economic entities in the Baltic States. The factors’ assessments provided by seven experts were analyzed. Analytic Hierarchy Process (AHP) with fuzzy numbers was employed to process the data. Two different scales of evaluation (inverse linear and balanced) were used.Findings & Value added: The factors influencing the process of formation of business groups were evaluated by experts. Research results allow for making conclusions regarding the causes of the business integration, and impact of diversified integrated business structures on the country's business system in Central Europe.

scholarly journals APPLICATION OF AHP (ANALYTIC HIERARCHY PROCESS) FOR DETERMINATION THE AFFECTING MAIN FACTORS IN SOIL EROSION AT SONG BE BASIN

2011 ◽  
Vol 14 (4) ◽  
pp. 41-50
Author(s):  
Ngan Truong Nguyen
Keyword(s):  
Soil Erosion ◽  
Analytic Hierarchy Process ◽  
Plant Cover ◽  
Analytic Hierarchy ◽  
Slope Length ◽  
Factors Affecting ◽  
Erosion Processes ◽  
Two Factors ◽  
Main Factors ◽  
Hierarchy Process

Soil erosion is a global environmental problem. The affecting main factors for soil erosion processes are different due to the specific areas. The calculated results of soil erosion, by Ha Quang Hai and Tran Tuan Tu, demonstrated that Song Be basin is eroded very huge, about 321 tons/ha/year. The article is based on factors proposed by R.P.C Morgan in 2005, using the analytic hierarchy process AHP (Thomas L. Saaty, 1970) to determine the weights for these factors. Since then, the article concluded main factors affecting soil erosion at Song Be basin. Research results showed that the Terrain factor has the largest weight (0.30), followed by two factors: Plant cover (0.29) and Rain (0.28). The article also identified four main factors impacting on the soil erosion at Song Be basin, including: slope, land cover ratio, intensity of rainfall and slope length. These results will be the basis for subsequent studies to adjust USLE model more applicably for erosion characteristics in the researched area.

scholarly journals The reflection of public values in twitter use of metropolitan municipalities: A content analysis employing the analytic hierarchy process

2021 ◽  
pp. 1-25
Author(s):  
Huseyin Serhan Calhan ◽  
Naci Karkin ◽  
Selcuk Burak Hasiloglu ◽  
Mehmet Emin Ozgul
Keyword(s):  
Social Media ◽  
Content Analysis ◽  
Analytic Hierarchy Process ◽  
Relevant Literature ◽  
Public Values ◽  
Analytic Hierarchy ◽  
Social Media Presence ◽  
The Analytic Hierarchy Process ◽  
Metropolitan Municipalities ◽  
Hierarchy Process

The reflection of public values (PVs) could be monitored through some indicators, like institutional social media tools. The measurement of how PVs are reflected over local social media accounts is of great importance. Studies in the relevant literature are mainly focusing on the benefits of social media presence, drivers, or barriers or attitudes and expectations on social media presence. We, in this study, focus on the evaluation of whether and how selected PVs are reflected through social media accounts of metropolitan municipalities (MMs) in Turkey. By taking participation, collaboration, and transparency as the main PVs, we have formed an evaluation metric composed of five sub-criteria for each determinant. With the help of seven public administration experts holding a Ph.D. degree to form an expert graded scheme by using the analytic hierarchy process (AHP), we have employed a content analysis over Twitter accounts of 30 Turkish MMs using this expert graded scheme. We have found that Turkish MMs were found not to grasp the valuation of the selected PVs since most seem to fail to reflect them over their social media accounts to the full extent possible. Moreover, many Turkish MMs seem to have violated privacy and personal data.

scholarly journals Analysis on Cognitive Behaviors and Prevention of Human Errors of Coalmine Hoist Drivers

2020 ◽  
Vol 10 (5) ◽  
pp. 663-670
Author(s):  
Pengye Zhu ◽  
Linhui Sun ◽  
Yunfeng Song ◽  
Liao Wang ◽  
Xiaofang Yuan ◽  
...  
Keyword(s):  
Cognitive Process ◽  
Process Model ◽  
Cognitive Errors ◽  
Key Factors ◽  
Analytic Hierarchy ◽  
Human Errors ◽  
Factors Affecting ◽  
Cognitive Behaviors ◽  
Two Stages ◽  
Hierarchy Process

Human errors are commonplace among hoist drivers in the hoisting task of coalmines. To reduce these errors and prevent accidents, it is necessary to identify the features of cognitive behaviors and main cognitive errors of the hoist drivers. This paper analyzes the accident cases and operating flow of coalmine hoist, and establishes a cognitive process model of coalmine hoist drivers. Further, the cognitive behaviors and functions of the drivers were analyzed stage by stage, revealing the distributions of their main cognitive behaviors and functions. It is learned that most coalmine hoist accidents concentrate in two stages: lifting, and operation monitoring. The operating processes in the two stages were further deliberated. The specific operations were extracted as the influencing factors of human errors, and the importance of each index was calculated through analytic hierarchy process (AHP). The research results provide a theoretical reference for identifying the key factors affecting the human errors of the operations by coalmine hoist drivers, and shed new light on how to prevent such errors.

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