Decision Support System for Selecting Type of Moveable Dam Gate to Handle Tidal Flood Issued (A Case Study in The Parid River, Cilacap, Indonesia)

Abstract

Cilacap is one of the regions in Indonesia in the southern coastal region bordering the Indonesian Ocean. In the coastal areas of Cilacap including Kawunganten district, there are frequent floods due to sea level rise. Tidal flood problem in Cilacap can be overcome by constructing a moveable dam. The selection of moveable dam gateis needed so that it can be work optimally. Data in this study were obtained through a questionnaire and distributed to respondents who were experts in the field of water. There are 5 criteria used to select the type of moveable dam gate, namely material, function, operational and maintenance, cost and location. There are 4 alternatives of moveable dam gatenamely flap gate, radial gate, sliding gate and rubber dam. The results of the questionnaire were then processed using Analytical Hierarchy Process. The results showed that the most important criteria to select the type of moveable dam gate is cost (0.273). The best alternative of moveable dam gate based on all criteria is flap gate (0.291). Movable dam with flap gate became the priority because it is easy to operate and low cost. The best location for moveable dam placement is before Ujungmanik Bridge with a score 0.376.

Decision support system for determining the location of rubber weir construction as an effort to meet raw water needs in Rembang, Indonesia

“…Hierarchy is used in determining the location where a rubber weir will be built, because the proposed site of the weir takes into account the activities of local residents and good topographical conditions [12]. So opinions from village officials and experts are needed so that the weir that will be built is in accordance with the needs of the residents and its function [13]. Below is a hierarchy of 6 criteria and 3 alternatives for selecting rubber weir locations :…”

Analisis Stabilitas Desain Bendung Pada Gerbang Radial Sungai Parit (Studi Kasus Banjir Rob di Kawunganten-Cilacap Jawa Tengah)

“…Perencanaan pengendalian banjir rob dapat dilakukan dengan baik apabila desain bendung gerak radial gate aman terhadap syarat stabilitas muka air banjir rob. Dimana analisis stabilitas bendung radial gate ini penting layak untuk dilakukan penelitian sebagai mitigasi desain konstruksi yang cocok pada lokasi banjir dan pasang surut air laut (H. P. Adi, Wahyudi & Ni'Am, 2020).…”

Selection of Alternative Locations for Rubber Weirs to Fulfill Clean Water needs in Rembang Regency

“…What is needed is a lot of supporting buildings that can accommodate rainwater, one example is a reservoir. A reservoir is one of the provision buildings that is made open to accommodate water using rainwater which is then collected or stored in a reservoir which is useful for supporting the clean water needs of the population (H. P. Adi, Wahyudi, and Ni'Am 2020). Currently, the Ministry of Public Works and Public Housing (PUPR) has also implemented rubber weir innovation to support water and food security in Indonesia.…”