#TITLE_ALTERNATIVE#

• Main Author: ROMDONI , YAKUB
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/31692
• Institution: Institut Teknologi Bandung

<p align="justify">Nevertheless pipeline distribution network is generally located underground, and hence it is received less attention. Therefore it is necessary to evaluate the condition of water distribution pipeline, through risk analysis of pipeline failure. Pipeline risk analysis is an analytical process to identify and quantify the probability and the negative consequence as the impact of the pipeline failure. Studies on risk analysis of pipeline failure is not a new one. Nevertheless such studies were limited in Indonesia. <br /> <br /> <br /> The goal of this study is risk analysis model of pipeline failure for water distribution network in PDAM Kota Bandung with AHP-fuzzy approach. AHPFuzzy is a combination of the approach of analytical hierarchy process (AHP) and fuzzy logic method. <br /> <br /> <br /> The objectives to be achieved in this study were 1) to identify, define and perform weight of factors and sub-factors that significantly influence the distribution pipeline failure through the method of AHP, 2) to develop risk models for pipeline failure with fuzzy logic approach , 3)to perform divide and review <br /> <br /> distribution network hydraulic model made in previous study, and 4) to conduct simulation and analysis of fuzzy risk model created in this study to obtain the level of risk on primary pipe segment. <br /> <br /> <br /> The analysis shows that risks on pipeline are not caused by single factor, but many factors that affect each other. From questionnaires analysed with AHP model, it was obtained factors and sub-factors which have significant influence on the failure of distribution pipeline in PDAM Kota Bandung. By using fuzzy method, risk modeling based on the model hierarchy and fuzzy rulebase was determined. Modelling the risk of pipeline failure with fuzzy method intended to know the factors that cause failure of pipeline distribution in PDAM Kota <br /> <br /> Bandung and negative consequences which resulted from the failure, and the level of risk for each segments was obtained, through a simulation model created. <br /> <br /> <br /> From simulation of the model, the risk level of pipe segments can be determined. The risk can be classified as low, medium, high, very high, or in between. Simulation of risk models was based on three scenarios, scenario-I for current conditions, scenario-II for improvement of condition for the next 5 years, and scenario-III for worsen conditions in the next 5 years. Simulation was done using secondary data both from the literature and discussions with PDAM Kota Bandung as well as assumptions. <br /> <br /> <br /> In the scenario-I, for the the primary pipes of south-central segments simulated, 24% was 'high risk', 24% was 'moderate-high', and 52% was 'moderate'. For of the northern segments simulated, 30% was 'high risk’, 25% <br /> <br /> was 'moderate-high risk', and 45% was 'moderate risk'. In the scenario-II, for the primary pipes of the south central segments simulated, 20% was 'moderate-high 'risk', and 80% was"moderate". For the northern segments simulated, 35% was 'moderate-high risk', and 66% was 'moderate risk'. In the scenario-III, for the primary pipes of the south-central segments simulated, 25% was ‘moderate-high risk’, and 75% high risk. For the northern segments simulated, 10% was ‘moderate-high risk’, and 90% was ‘high risk’. Simulation results showed that distribution pipeline with high-risk condition caused by using ACP or PVC material, the location of pipe is under the highway, and the closeness of pipeline segments to densely-traffic of commercial area. From the three simulation scenarios showed that through scenario-II, there was be an improvement in the <br /> <br /> condition of distribution pipelines of PDAM Bandung.<p align="justify">