Assessing human vulnerability to urban flood hazard using the analytic hierarchy process and geographic information system

2020 ◽  
Vol 50 ◽  
pp. 101659
Author(s):  
Tanaya Sarmah ◽  
Sutapa Das ◽  
Aishwarya Narendr ◽  
Bharath H. Aithal
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
Flood Hazard ◽  
Geographic Information ◽  
Analytic Hierarchy ◽  
Urban Flood ◽  
Human Vulnerability ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

scholarly journals Weights of Factors Contributing to Flood Formation in the Lam River Basin, Vietnam

2020 ◽  
Vol 55 (2) ◽  
Author(s):  
Nguyen Ba Dung ◽  
Dang Tuyet Minh ◽  
Nguyen Quoc Long ◽  
Le Thi Thu Ha
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
River Basin ◽  
Flood Risk ◽  
Annual Rainfall ◽  
Soil Slope ◽  
Analytic Hierarchy ◽  
The Analytic Hierarchy Process ◽  
Hierarchy Process

There are many factors that influence the formation and development of floods, such as rainfall, soil, slope, land cover, drainage, and density. Therefore, a quantitative assessment of their importance is necessary, especially in the determination of flood risk zones, using the Analytic Hierarchy Process algorithm and Geographic Information System. In comparison with other methodologies, an obvious advantage of Analytic Hierarchy Process is the ability to solve multi-variable qualitative and quantitative problems with precise and trustworthy results. This paper presents the application of the Analytic Hierarchy Process algorithm in analyzing and evaluating the level at which various criteria affect flood risk in the Lam River basin. Some of the flood-causative factors considered in this paper are annual rainfall, soil, slope, land cover, drainage density, and relative slope length. These factors were chosen based on the physical conditions of the study area. The research results are the weight of different criteria. The higher the weight, the higher the effect of that criterion on flood risk. The computed weights show that annual rainfall and slope are the factors that contribute the most to flooding, based on decision-makers’ judgement. The results of this article can be used to construct a flood risk zoning map and flood susceptibility map for flood warnings in the Lam River basin, using the Analytic Hierarchy Process method and Geographic Information System technology. New research shows that Analytic Hierarchy Process can be trustworthy when assessing the level of influence of the different factors on determining flood-prone areas in the Lam River basin, as well as other basins.

scholarly journals Geographic information system based malaria risk analysis and mapping in Erer District eastern Ethiopia

2019 ◽  
Author(s):  
Maereg Teklay A Amare ◽  
Gebrehiwot Gebretsadik kassa ◽  
Esie G/wahid Gebre ◽  
Abadi Abay ◽  
Mekonen yimer ◽  
...  
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
Geographic Information ◽  
Malaria Risk ◽  
Analytic Hierarchy ◽  
Risk Areas ◽  
Hazard And Risk ◽  
Temporal And Spatial ◽  
Hierarchy Process

Abstract Background: Erer is one of the districts in Ethiopia where the first malaria transmission season occurs. Although the focus on malaria research has increasingly gained ground, little emphasis has been given to develop quantitative methods for assessing malaria hazard and risk in a temporal and spatial perspective. Objective: To characterize and examine the temporal and spatial malaria trend. The research also aims at producing a predictive model of malaria hazard and risk in Erer district. Methods: In this study a cross sectional research design was used. It was carried out through the collection of both quantitative and qualitative data about the nature of malaria and household’s response towards it. A multi-stage sampling method was used and 136 sample size was determined from the sampling frame of 6203 households. Simple descriptive analysis technique was used to determine the malaria trend of the district. Integration of Geographic information system and analytic hierarchy process was used to determine the weight of each factor pair wise comparison and weighted linear combination was used to aggregate and produce the hazard and malaria risk maps. Results: Results have shown that 19.92%, 27.96%, 32.35%, 18.93% and 0.82% of the district was very high, high, moderate, low and very low malaria risk areas respectively. The malaria trend of the area was found to be variable across time with 2014 the peak year while the minimum case observed was in 2016. Conclusion: It is possible to conclude that risk maps are important for estimating the scale of the risk, and enable detection of high risk areas, thus facilitating decision making and policy formulation for enhanced malaria control interventions. Key words: Analytic Hierarchy Process; Malaria risk; Malaria trend; Weighted overlay

scholarly journals Integrated Multi-parametric Analytic Hierarchy Process (AHP) and Geographic Information System (GIS) based Spatial modelling for Flood and Water logging Susceptibility Mapping: A case study of English Bazar Municipality of Malda, West Bengal, India

2021 ◽  
Author(s):  
Diyali Chattaraj ◽  
Biswajit Paul ◽  
Subir Sarkar
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
Urban Expansion ◽  
Spatial Modelling ◽  
Geographic Information ◽  
Mitigation Measures ◽  
Analytic Hierarchy ◽  
Water Logging ◽  
Hierarchy Process

Abstract. Waterlogging as a perennial problem is deep rooted on the urban fabrics of English Bazar Municipality. The present study pertains to vulnerability and risk assessment of flood and waterlogging susceptible areas in a micro or local scale, based on an integrated Analytic Hierarchy Process-Geographic information System (AHP-GIS) category model. For this purpose, a multi-criteria assessment of natural, quasi-natural and man-made factors have been performed. Criterion includes six parameters namely elevation, slope, soil, flow accumulation, land use land cover, density of digitized drain network which are responsible to initiate the waterlogged condition within municipality premises. The weights of all criterion are computed by pair wise comparison decision matrix (AHP). According to their weightage, information of different parameters are superimposed for a final weighted overlay analysis following a spatial modelling, under ArcGIS 10.5 platform to delineate the flood and water logging susceptible zones. The result obtained from this study indicate 11.45 %, 3.05 % and 85.49 % area of municipality corresponds with highly vulnerable, low and moderately vulnerable respectively. The major finding in the study reveals that unplanned urban expansion in the hazardous low-lying area by filling up of wetlands and depressions in association with inadequate drainage gravity provisions in the newly built-up wards (3, 23, 24 and 25) are noteworthy for resultant waterlogging condition. The present paper also aims to suggest long-term mitigation measures to be well integrated for arriving at a well drafted and implementable comprehensive drainage plan of English Bazar municipality.

scholarly journals Sitting Management Solid Waste Landfill Combining Geographic Information System and Analytic Hierarchy Process: Ajdir, Morocco

2019 ◽  
Vol 8 (4) ◽  
pp. 4797-4802
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
Solid Waste ◽  
Geographic Information ◽  
Landfill Site ◽  
Household Waste ◽  
Analytic Hierarchy ◽  
Multi Criteria Analysis ◽  
Hierarchy Process

The Amount Of Household Waste Produced By The Mainly Urban Population In Morocco Continues To Increase Year After Year. Morocco Is Thus Confronted With The Problems Of Storage And Disposal Of This Waste, Which Are Composed Largely Of Organic Matter, Bio-Waste. In The Recent Past, These Wastes Have Been Buried In Wild Dumps Or In Old Quarries Located In Areas Close To Urban Centers Without Any Treatment Or Control. This Can Constitute Significant Risks Both For Public Health And The Environment And For The Future Of The Socio-Economic Activities Of The Country. Determination Of Proper Landfill Site Involves Multiple Disciplines. The Landfills Contain A Large Quantity Of Solid Waste. The Management Of Solid Waste (Msw) Necessitates The Involvement Of Different Stakeholders. In This Paper, We Aim To Determine The Appropriate Landfill Site At The Level Of The Municipality Of Ajdir In The Province Of Al Hoceima Morocco. We Take Into Consideration The Opinions Of The Stakeholders. Based On Environmental, Socio-Cultural And Economic Criteria. For This Purpose, We Used In This Paper Two Multi-Criteria Analysis Methods. The Geographic Information System (Gis) And The Analytic Hierarchy Process (Ahp). First, We Created The Database Gis Related To The Study Area. Next, This Data Was Processed To Determine The Landfill Sites That Respect The Stakeholder's Priorities And Exclusion Criteria. Then, A Multi-Criteria Analysis By Ahp Method Was Carried Out To Offer Different Visual Representations Of The Possible Solutions Of The Site’s Choice, Especially The Multi-Scale, Multi-Theme Maps And The Construction Of The Free Zones Which Can Shelter A Landfill Which Will Contribute To The Evaluation Of These Criteria While Integrating The Stakeholders Who Assisted In The Rationalization Of The Sub-Criteria’s Judgments Involved In The Study.

A MULTIVARIATE METHODOLOGY FOR DETERMINING THE OPTIMAL HIGHWAY ALIGNMENT CANDIDATE BASED ON GEOGRAPHIC INFORMATION SYSTEM AND ANALYTIC HIERARCHY PROCESS

2015 ◽  
Vol 76 (14) ◽  
Author(s):  
Mohd Zulkifli Mohd Yunus ◽  
Othman Che Puan ◽  
Seyed Mahdi Sajjadi
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Analytic Hierarchy Process ◽  
Geographic Information ◽  
Analytic Hierarchy ◽  
Study Region ◽  
Highway Alignment Optimization ◽  
Hierarchy Process ◽  
Highway Alignment

Research on highway alignment optimization has been quite intensive over the last two decades. Determining the best candidate for highway alignment is one of the most complex highway design stages due to the different effects of various parameters. Hence, in the present study, Analytic Hierarchy Process technique and Geographic Information System are proposed to determine the best highway candidate with special focus on the constraint, cost and safety criteria. The methodology presented in the current research is not limited to the constraint, cost and safety criteria but can be extended to other criteria. This methodology has been implemented on a case study region in northwestern of Iran, and therefore the constraint, cost and safety criteria have been obtained for the case study conditions. The final result of the current paper indicates that the optimal highway candidate obtained with the proposed methodology can concurrently satisfy all relative parameters in highway alignment optimization based on their impact.

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