scholarly journals LANDSLIDES SUSCEPTIBILITY ZONATION OF THE TERRITORY OF NORTH MACEDONIA USING ANALYTICAL HIERARCHY PROCESS APPROACH

2019 ◽  
Vol 40 (1) ◽  
pp. 115
Author(s):  
Ivica Milevski ◽  
Slavoljub Dragićević
Keyword(s):  
Analytical Hierarchy Process ◽  
Roc Analysis ◽  
Slope Angle ◽  
Process Approach ◽  
Gis And Remote Sensing ◽  
Republic Of Macedonia ◽  
The Republic ◽  
Hierarchy Process ◽  
Very High ◽  
Formation System

Landslides are natural disasters that have an impact in many areas around the world including the territory of the Republic of Macedonia. In this country, about 300 large landslides are registered, most of which cause serious damage to the infrastructure almost every year. In that sense, the mapping of sites that are susceptible to landslides is essential for the management of these areas. This is a crucial step to prevent landslides in places where this could be expected or to mini-mize its damages. Therefore, a heuristic approach of Analytical Hierarchy Process (AHP) combined with Geographic In-formation System (GIS) and Remote Sensing (RS) is used in this work for the assessment of potential landslide areas in the Republic of Macedonia. In the procedure, 6 triggering factors indicating a strong influence on the landslide activity are selected, including lithology, slope angle, land cover, terrain curvature, distance from rivers and distance from roads. Through the procedure, expert-based weight of these factors is made. The LS model is produced with the summing up of the factor layers in the form of harmonized raster grids. Finally, the values of the grid model are classified according to the quantiles and natural breaks scheme. The produced maps show acceptable results confirmed by validation methods and ROC analysis, indicating that about 40% of the country area is under high and very high landslide susceptibility. This ap-proach can be further improved if combined with statistical methods in the form of a hybrid model.

scholarly journals Integrated Framework for Detecting the Areas Prone to Flooding Generated by Flash-Floods in Small River Catchments

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 758 ◽  
Author(s):  
Romulus Costache ◽  
Alina Barbulescu ◽  
Quoc Bao Pham
Keyword(s):  
Analytical Hierarchy Process ◽  
Process Model ◽  
Buffer Zone ◽  
Training Sample ◽  
Flash Floods ◽  
Operating Characteristics ◽  
Conditioning Factors ◽  
Flood Susceptibility ◽  
Hierarchy Process ◽  
Very High

In the present study, the susceptibility to flash-floods and flooding was studied across the Izvorul Dorului River basin in Romania. In the first phase, three ensemble models were used to determine the susceptibility to flash-floods. These models were generated by a combination of three statistical bivariate methods, namely frequency ratio (FR), weights of evidence (WOE), and statistical index (SI), with fuzzy analytical hierarchy process (FAHP). The result obtained from the application of the FAHP-WOE model had the best performance highlighted by an Area Under Curve—Receiver Operating Characteristics Curve (AUC-ROC) value of 0.837 for the training sample and another of 0.79 for the validation sample. Furthermore, the results offered by FAHP-WOE were weighted on the river network level using the flow accumulation method, through which the valleys with a medium, high, and very high torrential susceptibility were identified. Based on these valleys’ locations, the susceptibility to floods was estimated. Thus, in the first stage, a buffer zone of 200 m was delimited around the identified valleys along which the floods could occur. Once the buffer zone was established, ten flood conditioning factors were used to determine the flood susceptibility through the analytical hierarchy process model. Approximately 25% of the total delimited area had a high and very high flood susceptibility.

scholarly journals INDIKATOR KINERJA JALAN LONG SEGMENT DI BANTEN DENGAN ANALISIS ANALYTICAL HIERARCHY PROCESS

2020 ◽  
Vol 4 (1) ◽  
pp. 131
Author(s):  
Novel Ridwan ◽  
Leksmono S. Putranto
Keyword(s):  
Analytical Hierarchy Process ◽  
Service Providers ◽  
Process Approach ◽  
Director General ◽  
Road Users ◽  
System Service ◽  
Circular Letter ◽  
Service Conditions ◽  
Hierarchy Process ◽  
Made In

The length of National roads in Banten Province along 564 kilometers is spread in several regencies and cities in the Banten region. In managing road implementation, adequate resources are needed so that prompt and appropriate action can be taken to reduce complaints from road users / communities. Implementation of road handling carried out by service providers with a conventional contract system must be done through a procurement process that goes through procedures based on applicable laws and regulations, namely based on Circular Letter of the Director General of Highways No.9 / SE / DB 2015 Implementation of road handling carried out by service providers use the Long Segment System. In the implementation of road handling carried out by service providers with a long segment contract system, service providers must meet the level of road service conditions, so that service providers are able to meet road quality standards. Because road management in Banten Province currently uses the Long Segment System, it is necessary to analyze all aspects of handling the system. This study analyzes these aspects with the AHP (Analytical Hierarchy Process approach based on interviews and questionnaires. Based on the results of the analysis found in long segment work on the highway, the most important aspect to consider is the Drainage Aspect, and the drainage work needs to pay attention to the smooth work all types of channels made in drainage work. sepanjang 564 kilometer tersebar di beberapa kabupaten dan kota di wilayah Banten. Dalam mengelola implementasi jalan, diperlukan sumber daya yang memadai sehingga tindakan yang cepat dan tepat dapat diambil untuk mengurangi keluhan dari pengguna jalan/masyarakat. Implementasi penanganan jalan yang dilakukan oleh penyedia layanan dengan sistem kontrak konvensional harus dilakukan melalui proses pengadaan yang melewati prosedur berdasarkan hukum dan peraturan yang berlaku, yaitu berdasarkan Surat Edaran Direktur Jenderal Bina Marga No.9/SE/DB Tahun 2015 Implementasi penanganan jalan yang dilakukan oleh penyedia layanan menggunakan Sistem Segmen Panjang. Dalam pelaksanaan penanganan jalan yang dilakukan oleh penyedia jasa dengan sistem kontrak segmen panjang, penyedia jasa harus memenuhi tingkat kondisi layanan jalan, ini agar penyedia jasa mampu memenuhi standar kualitas jalan. Karena manajemen jalan di Provinsi Banten saat ini menggunakan Sistem Segmen Panjang, maka perlu analisis segala aspek dalam penanganan sistem tersebut. Penelitian ini menganalisis aspek-aspek ini dengan pendekatan AHP (Analytical Hierarchy Process yang didasarkan dari wawancara dan kuesioner. Berdasarkan hasil analisis ditemukan dalam pekerjaan long segment pada jalan raya, aspek terpenting yang harus diperhatikan adalah Aspek Drainase, dan pada pekerjaan drainase perlu memperhatikan lancaranya pekerjaan semua jenis saluran yang dibuat dalam pekerjaan drainase.

scholarly journals Forest fire risk mapping using analytical hierarchy process (AHP) and earth observation datasets: a case study in the mountainous terrain of Northeast India

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Ridalin Lamat ◽  
Mukesh Kumar ◽  
Arnab Kundu ◽  
Deepak Lal
Keyword(s):  
High Risk ◽  
Forest Fire ◽  
Analytical Hierarchy Process ◽  
Fire Risk ◽  
Control Measures ◽  
Fire Control ◽  
Risk Zones ◽  
Hierarchy Process ◽  
Forest Fire Risk ◽  
Very High

AbstractThis study presents a geospatial approach in conjunction with a multi-criteria decision-making (MCDM) tool for mapping forest fire risk zones in the district of Ri-Bhoi, Meghalaya, India which is very rich in biodiversity. Analytical hierarchy process (AHP)-based pair-wise comparison matrix was constructed to compare the selected parameters against each other based on their impact/influence (equal, moderate, strong, very strong, and extremely strong) on a forest fire. The final output delineated fire risk zones in the study area in four categories that include very high-risk, high-risk, moderate-risk, and low-risk zones. The delineated fire risk zones were found to be in close agreement with actual fire points obtained from Moderate Resolution Imaging Spectroradiometer (MODIS) fire data for the study area. Results indicated that Ri-Bhoi’s 804.31 sq. km. (32.86%) the area was under ‘very high’ fire susceptibility. This was followed by 583.10 sq. km. (23.82%), 670.47 sq. km. (27.39%), and 390.12 sq. km. (15.93%) the area under high, moderate, and low fire risk categories, respectively. These results can be used effectively to plan fire control measures in advance and the methodology suggested in this study can be adopted in other areas too for delineating potential fire risk zones.

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