scholarly journals Fire Safety Evaluation for Scenic Spots: An Evidential Best-Worst Method

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Dongjun Chen ◽  
Hongbin Xie
Keyword(s):  
Fire Safety ◽  
Evaluation Method ◽  
Evidence Theory ◽  
Safety Evaluation ◽  
Vital Role ◽  
Significant Loss ◽  
Evaluation Index System ◽  
Open Problems ◽  
Domain Experts ◽  
Best Worst Method

Fire safety plays a vital role in tourism management, which can cause significant loss of life and property. It is necessary to present an efficient fire safety evaluation for scenic spots. However, some key issues are not well addressed in existing methods. For example, how to model experts’ opinions and how to combine them are still open problems. To address these issues, a new evaluation method based on the Dempster–Shafer evidence theory and best-worst method is presented. First, a fire safety evaluation index system is constructed using the domino model. Domain experts can evaluate different factors with linguistic assessments. The best-worst method is used to determine the weights of different factors. Then, these weighted linguistic assessments are efficiently fused by Dempster’s combination rule to obtain the evaluation result. Finally, a case study is illustrated to demonstrate the efficiency of the proposed method in fire safety evaluation for scenic spots. The main contribution of the proposed method is to represent and handle the uncertainty in experts’ linguistic assessments, so as to decrease the uncertainty and improve decision making. In addition, the weight determination method BWM is easier and more reliable than the existing method AHP.

Application of Underground Engineering Fire Safety Evaluation Based on the Fuzzy Comprehensive Evaluation Method

2013 ◽  
Vol 765-767 ◽  
pp. 307-310
Author(s):  
Shan Yu Yan ◽  
Jin Ding
Keyword(s):  
Fire Safety ◽  
Safety Assessment ◽  
Evaluation Method ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Assessment Method ◽  
Evaluation Index System ◽  
Fuzzy Evaluation ◽  
Fire Control ◽  
Underground Engineering

In this paper, built fire control safety evaluation index system according to the underground engineering characteristics of fire and introduce a method to determine the weighing values for assessment index. Put fuzzy comprehensive assessment method on underground engineering of fire safety assessment, then use fuzzy mathematics theory build a model of engineering of fire safety assessment fuzzy evaluation, and through the underground engineering design of fire safety assessment, to prove its scientific and effective.

scholarly journals Safety Evaluation Method of Antifloating Anchor System Based on Comprehensive Weighting Method and Gray-Fuzzy Theory

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Li Jingwen ◽  
Qiao Jiangang ◽  
Dou Yuanming ◽  
Fu Xu ◽  
Liu Xiaoli
Keyword(s):  
Risk Factors ◽  
Evaluation Method ◽  
Fuzzy Theory ◽  
Underground Structure ◽  
Safety Evaluation ◽  
Evaluation Index System ◽  
Grey Theory ◽  
Entropy Weight ◽  
Weighting Method ◽  
Anchor System

The risk factors in the safety evaluation of antifloating anchor system of underground structure have the characteristics of complexity, grey, and fuzziness. Based on the Delphi method, analytic hierarchy process (AHP), and entropy weight method, this paper establishes a three-level evaluation index system based on four main risk factors and calculates the subjective and objective comprehensive weights of the index according to the comprehensive weighting method. It not only takes into account the valuable experience of the expert group but also reflects the objective impact of the subjective score on the system. On the basis of the above research, the grey-fuzzy safety evaluation method of antifloating anchor system is established by using the grey theory and the relevant theory of fuzzy mathematics. The reliability of the method is verified by an example, which has certain theoretical significance and application value.

Study on Mechanical Engineering for Flight with Flight Safety Evaluation Method on Relevance Vector Machine

2013 ◽  
Vol 454 ◽  
pp. 70-73
Author(s):  
Xu Sheng Gan ◽  
Hao Lin Cui ◽  
Ya Rong Wu
Keyword(s):  
Index System ◽  
Mechanical Engineering ◽  
Evaluation Method ◽  
Evaluation Model ◽  
Safety Evaluation ◽  
Relevance Vector Machine ◽  
Evaluation Index System ◽  
Flight Safety ◽  
Flight System ◽  
Engineering Environment

The mechanical engineering for flight are important for flight safety to prevent the flight accident, improve the management and decision-making level of flight safety. In order to improve the safety of flight system, a flight safety evaluation method based on relevance vector machine and flight mechanical engineering is proposed. First, based on system viewpoint, according to the actual situation of flight safety, the factors that influence the safety of flight system are found out on four sides of human, flight mechanical engineering, environment and management and the flight safety evaluation index system is constructed; then the flight safety evaluation model based on relevance vector machine developed in the framework of Bayesian theory is briefly introduced; finally using the index system the relevance vector machine evaluation model of flight safety is establish. The actual example confirms its feasibility.

Application of the Fuzzy-AHP Method in Bridge Crane Safety Evaluation

2014 ◽  
Vol 496-500 ◽  
pp. 2788-2794 ◽  
Author(s):  
Gang Shen ◽  
Dong Xiang ◽  
Nan Liu ◽  
Peng Mou ◽  
Yong Yang
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Fuzzy Ahp ◽  
Safety Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Working Environment ◽  
Evaluation Index System ◽  
Bridge Crane ◽  
Fuzzy Evaluation ◽  
Ahp Method

Hoisting machinery belongs to special machinery equipment and is gradually developing towards advanced technologies such as lightweight, energy conservation and safety reliability. Therefore objective evaluation for safety circumstances of bridge crane has major engineering significance. The fuzzy-AHP comprehensive evaluation model has been established by fuzzy evaluation method and analytic hierarchy process (AHP) method. In addition, application of the fuzzy-AHP method in bridge crane safety evaluation has been discussed. Firstly, the safety evaluation index system is established according to working environment, manufacturing technology and service condition of bridge crane. Secondly, weight coefficient is determined by AHP method and single stage fuzzy evaluation is processed. Based on this result, multi stage fuzzy comprehensive evaluation is conducted. Finally, the safety grade of bridge crane is obtained. Besides, fatigue test of relevant main girder model is conducted and the accuracy of safety evaluation based on the fuzzy-AHP method is verified through test results.

scholarly journals Operating Safety Evaluation of Battery-Electric Taxi Based on Spatio-Temporal Speed Parameters

2021 ◽  
Vol 13 (23) ◽  
pp. 13446
Author(s):  
Xueyu Mi ◽  
Chunjiao Dong ◽  
Ning Li ◽  
Yi Lin ◽  
Chunfu Shao ◽  
...  
Keyword(s):  
Index System ◽  
Evaluation Method ◽  
Safety Evaluation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Driving Behaviors ◽  
Safety Risks ◽  
Safety Awareness ◽  
Local Roads ◽  
Spatio Temporal

The battery-electric taxis have the features of larger mass, low operating noise, and great speed, and the drivers of battery-electric taxis have various driving behaviors and low safety awareness, which leads to higher safety risks. In the paper, the driving and speed characteristics of battery-electric taxis, conventional taxis, and private cars are compared and analyzed through conducting a GPS trajectory survey and a cross-section traffic flow parameter survey. An evaluation index system that is based on the spatio-temporal speed parameters is proposed, and a MEW-VIKOR method is developed for the operatiing safety evaluation of the battery-electric taxi. The results show that the operating speed of battery-electric taxis is significantly higher than that of conventional taxis on weekdays and weekends, and there is a relatively common speeding phenomenon on urban local roads. The proposed safety evaluation index system that is based on the spatio-temporal speed parameters and the MEW-VIKOR evaluation method can effectively evaluate the operatiing safety of battery-electric taxis. In addition, the ranking results show that, according to the spatio-temporal speed parameters, the operating safety of battery-electric taxis is lower than that of conventional taxis and private cars. The research provides theoretical insights for strategies and policies making to reduce the unsafe driving behaviors of battery-electric taxis.

Research on the Safety Evaluation Method of Railway Operation System

2011 ◽  
Vol 383-390 ◽  
pp. 4585-4593
Author(s):  
Xue Mei Xiao ◽  
Yan Hui Wang ◽  
Yuan Ling
Keyword(s):  
Evaluation Method ◽  
Safety Evaluation ◽  
Order Relation ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
Analysis Method ◽  
Operation System ◽  
Chain Analysis ◽  
Railway System ◽  
Railway Operation

Based on the analysis of railway accidents and safe operation, a dynamic multi-ring evaluation index (DMEI), whose structure was dynamic and reconfigurable logically, was proposed in the paper. And, Based on the structure of this evaluation index system, an analysis method based on accident chain analysis, which was improved from the order relation analysis method, was proposed in this paper. The improved method can be applied to the safety assessment of railway operation system. Last, by using the safety evaluation method proposed in this paper, the evaluation simulation of railway system operation was done, and then the evaluation results were analyzed and explained in theory.

scholarly journals Research on safety evaluation of bolt support based on analytic hierarchy process-entropy weight method

2020 ◽  
Vol 213 ◽  
pp. 03019
Author(s):  
Junqing Wang ◽  
Qinggui Cao ◽  
Xin Mi ◽  
Dan Li
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Safety Evaluation ◽  
Evaluation Index System ◽  
Shanxi Province ◽  
Entropy Weight ◽  
Application Program ◽  
Entropy Weight Method ◽  
Weight Method ◽  
Bolt Support

To evaluate the safety performance of bolt support scientifically, the factors affecting bolt support are systematically analyzed, the comprehensive evaluation index system is established from four aspects: support parameters, quality of bolt and fittings, construction management and monitoring level, and the safety evaluation model of bolt support is constructed; the AHP and entropy weight method are combined to determine the weight of each index, and the safety evaluation system of bolt support based on AHPentropy weight method is established and its application program is developed. The safety evaluation method and application program proposed in this paper are applied to the safety evaluation of bolt support in a coal mine in Shanxi Province, and the results are in agreement with the actual situation. This article studies the correlation.

Large Ship Cabins Fire Prevention and Fire Safety Evaluation Method

2013 ◽  
Vol 726-731 ◽  
pp. 877-881
Author(s):  
Yan Fei Chen ◽  
Shuang Zhuang ◽  
Liang Yang ◽  
Zhi Wei Feng
Keyword(s):  
Risk Management ◽  
Fire Safety ◽  
Evaluation Method ◽  
Safety Management ◽  
Fire Hazard ◽  
Safety Evaluation ◽  
Fire Risk ◽  
Fire Prevention ◽  
Fire Control ◽  
Large Ship

Aiming at the fire type and evolution of large ship cabins, a fire risk analysis method of large ship cabins based on fire scene analysis was established, which is basing on the International Maritime Organization (IMO) SOLAS Convention and International fire procedures (FTP ) by combining Chinas ship cabins fire protection technology and fire safety management features. The purpose is to improve technical level of the fire risk management and fireproof disposal basing on fire prevention with warning disposal by dynamic risk management of ship cabins fire hazard and fire control technology.

Sign in / Sign up

Export Citation Format

Share Document