Fuzzy Assessment of Factors Influencing Quality Level of Highway Projects
Ahmed Yousry Akal,
Ahmed Ebrahim Abu El-Maaty
Issue:
Volume 2, Issue 2, April 2016
Pages:
6-14
Received:
11 July 2016
Accepted:
15 August 2016
Published:
26 September 2016
DOI:
10.11648/j.ijmfs.20160202.11
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Abstract: A construction project such as highway comprises two distinct phases: preconstruction and construction. During these phases several factors are particularly noteworthy because of their significant impacts on the quality. As a result, the construction projects may be exposed to quality shortfalls. This paper aims at identifying the factors that may affect the quality of highway infrastructure projects in Egypt and determining their effectiveness degree through the application of fuzzy triangular approach. Using a detailed literature review, 39 factors have been identified to have an effect on the quality of the highway projects. A Pareto analysis shows that the first thirty factors contribute 80.249% of the weight of all the factors. The analysis of the collected questionnaires as perceived by the contracting engineers using the fuzzy approach reveals that availability of experienced staff in the owner’s and contractor’s teams during the project execution, asphalt quality and type used in the construction process, availability of the specified materials quality, pavement is not designed according to regional conditions (e.g. soil type -temperature - traffic volume) and design errors arising from inadequate engineer assumptions and inaccurate data are the major causal factors affecting the quality of the highway construction projects in Egypt.
Abstract: A construction project such as highway comprises two distinct phases: preconstruction and construction. During these phases several factors are particularly noteworthy because of their significant impacts on the quality. As a result, the construction projects may be exposed to quality shortfalls. This paper aims at identifying the factors that may ...
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I-Statistically Pre-Cauchy Triple Sequences of Fuzzy Real Numbers
Sangita Saha,
Bijan Nath,
Santanu Roy
Issue:
Volume 2, Issue 2, April 2016
Pages:
15-21
Received:
18 August 2016
Accepted:
29 August 2016
Published:
11 October 2016
DOI:
10.11648/j.ijmfs.20160202.12
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Abstract: In this article, the notion of I-statistically pre-Cauchy sequence of fuzzy real numbers having multiplicity greater than two is introduced. We establish the criterion for any arbitrary triple sequence of fuzzy numbers to be I-statistically pre-Cauchy. It is shown that an I-statistically convergent sequence of fuzzy numbers is I-statistically pre-Cauchy. Moreover a necessary and sufficient condition for a bounded triple sequence of fuzzy real numbers to be I-pre-Cauchy is established.
Abstract: In this article, the notion of I-statistically pre-Cauchy sequence of fuzzy real numbers having multiplicity greater than two is introduced. We establish the criterion for any arbitrary triple sequence of fuzzy numbers to be I-statistically pre-Cauchy. It is shown that an I-statistically convergent sequence of fuzzy numbers is I-statistically pre-C...
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