Optimization of Urban Highway Bypass Horizontal Alignment : A Methodological Overview of Intelligent Spatial MCDA Approach Using Fuzzy AHP and GIS
Joint Authors
Yabann, Chepng’etich
Tateishi, Ryutaro
Ouma, Yashon O.
Kirichu, Mark
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-26, 26 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-22
Country of Publication
Egypt
No. of Pages
26
Main Subjects
Abstract EN
Selection of urban bypass highway alternatives involves the consideration of competing and conflicting criteria and factors, which require multicriteria decision analysis.
Analytic hierarchy process (AHP) is one of the most commonly used multicriteria decision making (MCDM) methods that can integrate personal preferences in performing spatial analyses on the physical and nonphysical parameters.
In this paper, the traditional AHP is modified to fuzzy AHP for the determination of the optimal bypass route for Eldoret town in Kenya.
The fuzzy AHP is proposed in order to take care of the vagueness type uncertainty encountered in alternative bypass location determination.
In the implementation, both engineering and environmental factors comprising of physical and socioeconomic objectives were considered at different levels of decision hierarchy.
The results showed that the physical objectives (elevation, slope, soils, geology, and drainage networks) and socioeconomic objectives (land-use and road networks) contributed the same weight of 0.5 towards the bypass location prioritization process.
At the subcriteria evaluation level, land-use and existing road networks contributed the highest significance of 47.3% amongst the seven decision factors.
Integrated with GIS-based least cost path (LCP) analysis, the fuzzy AHP results produced the most desirable and optimal route alignment, as compared to the AHP only prioritization approach.
American Psychological Association (APA)
Ouma, Yashon O.& Yabann, Chepng’etich& Kirichu, Mark& Tateishi, Ryutaro. 2014. Optimization of Urban Highway Bypass Horizontal Alignment : A Methodological Overview of Intelligent Spatial MCDA Approach Using Fuzzy AHP and GIS. Advances in Civil Engineering،Vol. 2014, no. 2014, pp.1-26.
https://search.emarefa.net/detail/BIM-452515
Modern Language Association (MLA)
Ouma, Yashon O.…[et al.]. Optimization of Urban Highway Bypass Horizontal Alignment : A Methodological Overview of Intelligent Spatial MCDA Approach Using Fuzzy AHP and GIS. Advances in Civil Engineering No. 2014 (2014), pp.1-26.
https://search.emarefa.net/detail/BIM-452515
American Medical Association (AMA)
Ouma, Yashon O.& Yabann, Chepng’etich& Kirichu, Mark& Tateishi, Ryutaro. Optimization of Urban Highway Bypass Horizontal Alignment : A Methodological Overview of Intelligent Spatial MCDA Approach Using Fuzzy AHP and GIS. Advances in Civil Engineering. 2014. Vol. 2014, no. 2014, pp.1-26.
https://search.emarefa.net/detail/BIM-452515
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-452515