The Assessment Index System for Traffic Simulation Study in China

2012 ◽  
Vol 253-255 ◽  
pp. 1650-1661
Author(s):  
Hua Suo Ru ◽  
De Pin Peng

This paper analyses the road traffic operation in four typical situations including unsignalized junctions, signalized junctions, road sections and road networks in China. Four major factors such as road facilities, efficiency, safety and environment containing over twenty sub-factors are identified and weighed using analytic hierarchy process to form a holistic assessment index system which suggests a guideline for China’s road traffic simulation study.

2012 ◽  
Vol 268-270 ◽  
pp. 2031-2034
Author(s):  
Zheng Li ◽  
Ding Gui Luo

The concrete assessment index of cheese dyeing enterprises’ cleaner production is filtered out by the classic Delphi method (Delphi) of expert evaluation. According to the characteristic of Analytic Hierarchy Process (AHP),we have identified the different levels. Finally, assessment index system was established and the weight of each index and standard value were also determined. The cleaner production level can be evaluated eventually more intuitively. So it can provide the technical support and guidance for cleaner production assessment of Cheese Dyeing Enterprises and realize a sustainable development of this kind of enterprises.


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.


Author(s):  
Ruzhen Luo ◽  
Chunmei Zhang ◽  
Yanhui Liu

In China, many young and middle-aged rural residents move to urban areas each year. The rural elderly are left behind. The number of the rural left-behind elderly is increasing with urbanization, but it is unclear which indicators can be used to assess their health condition. The health risk assessment index system was developed to improve the health level of the rural left-behind elderly. A two-round web-based Delphi process was used to organize the recommendations from fifteen Chinese experts in geriatrics, health management, social psychology who participated in this study. Meaningfulness, importance, modifiability, and comprehensive value of the health risk assessment indicators in the index system were evaluated. The effective recovery rates of the two-round Delphi were 86.67% and 92.31%, respectively. The judgement coefficient and the authority coefficient were 0.87 and 0.82, respectively. The expert familiarity was 0.76. Ultimately, the health risk assessment index system for the rural left-behind elderly consisted of five first-level indicators, thirteen second-level indicators, and sixty-six third-level indicators. The final indicators can be used to evaluate the health of the rural left-behind elderly and provide the basis for additional health risk interventions.


2011 ◽  
Vol 71-78 ◽  
pp. 2479-2482
Author(s):  
Ling Hua Wang ◽  
Rui Lian Wang ◽  
Pan Hua Ning

According to characteristics about the agricultural water, agricultural water level assessment index system was structured, and Analytic Hierarchy Process was used to determine the importance of each hierarchy in the system. The fuzzy scheme optimum method which was adopted to assess the agriculture system utilization water level. So the fuzzy problems about how to use mathematic method to analyse and deal with the agricultural water assessment were solved to a certain extent. The final result of the example indicated that fuzzy comprehension assessment method could reflect utilization water characteristic in different areas and also showed that the method is correct and practical.


2016 ◽  
Vol 53 (2) ◽  
pp. 326-342 ◽  
Author(s):  
Guo-Hua Zhang ◽  
Yu-Yong Jiao ◽  
Li-Biao Chen ◽  
Hao Wang ◽  
Shu-Cai Li

Risk management for safety in mountain tunnel construction is of great significance. However, existing research lags behind engineering applications. In this paper, the risk of mountain tunnel collapse is used as an example to illustrate a new assessment method based on case-based reasoning, advanced geological prediction, and rough set theory. First, the risk surroundings and risk factors involved in tunnel collapse are integrated and summarized, and a risk assessment index system is established for tunnel collapse. At the same time, because the dynamic response parameters obtained by the advanced geological prediction usually indicate a typical geological structure, sensitive response parameters are introduced in the assessment index system. Advanced risk assessment can be performed for tunnel sections at a certain distance ahead of the tunnel face. Second, the major risk surroundings and the advanced geological prediction results are analyzed for the tunnel under assessment. Cases with similar attribute characteristics are selected via comparison with previous cases. Attribute reduction and calculation of weights are subsequently performed for the risk surroundings and risk factors of similar cases based on the attribute significance theory of rough sets. Finally, index screening and objective weights are applied in the fuzzy comprehensive assessment model. The results of this paper can be used to improve the theoretical level and reliability of risk assessment in tunnel safety and serve as a reference for tunnel construction.


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