Decision-making framework for sewer pipeline maintenance based on social and environmental changes

International Conference on Sustainable Civil Engineering

June 20-21, 2016 Cape Town, South Africa

Yeonsoo Kim, Woosik Jang, Hyeji Huh and Seung Heon Han

Yonsei University, South Korea

Posters & Accepted Abstracts: J Civil Environ Eng

Abstract :

Many serious problems such as sinkhole, inundation, water pollution occurred because of the deteriorated sewer pipelines are all over the world. Climate change, furthermore, makes the problems worse. The American Society of Civil Engineers announced that the USA earned a grade of �D� in sewer pipelines in its 2013 Report Card for America�s Infrastructure. According to Seoul of the South Korea, almost 80% of the entire sinkholes occurred because of the deteriorated sewer pipelines and 48% of the 5,023 km sewer pipelines are over 30 years old. Especially the serious problems occurred because of the deteriorated pipelines. However, there is a budget deficit for repairing the sewer pipelines which are needed to be treated immediately. Additionally, social impact measurement has received most attention recently. This paper presents decision-making framework for asset management of sewer pipelines in regard of social return on investment. First, this paper identifies the factors in line with technical, environmental, social and economic level of service. Second, analyzing the condition of sewer pipelines are conducted using the GIS database of Seoul. Third, the priority of asset investment for sewer pipelines is determined using a genetic algorithm. It is anticipated that when one need to decide the asset investment, overall efficient division of asset can be possible as a result of considering the social impact.

Biography :

Email: dustn001@yonsei.ac.kr