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All Journal Engineering Science Letter Journal of Moeslim Research Technik Structures, Infrastructure, Planning, Implementation, and Legislation
Meny Sriwati
STITEK Dharma Yadi Makassar
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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The Correlation Between Construction Management Efficacy and Hydraulic Design Compliance with Cost Overruns in Public-Private Partnership (PPP) Water Supply Projects Rini Damayanti; Meny Sriwati; Sudirman; Nur Khaerat Nur; Mardewi Jamal
Structures, Infrastructure, Planning, Implementation, and Legislation Vol. 1 No. 2 (2025): October, 2025
Publisher : CV. Get Press Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69855/sipil.v1i2.322

Abstract

This study investigates the correlation between construction management efficacy and hydraulic design compliance with cost overruns in Indonesian Public-Private Partnership (PPP) water supply projects. Employing a mixed-methods approach, the research integrates quantitative analysis of official project data (contract values, DEDs, QC reports) with qualitative stakeholder insights. Key findings demonstrate a significant negative correlation between effective managerial oversight and cost overruns (r = -0.632), and similarly, between strict hydraulic adherence and cost overruns (r=-0.527). Unforeseen site conditions and design modifications were confirmed as significant exacerbating factors. The results highlight the imperative for integrated risk management, combining rigorous managerial scrutiny and unwavering technical discipline to mitigate budgetary risk. Policy recommendations emphasize enhancing inter-stakeholder coordination, enforcing technical standards, and leveraging digital monitoring tools to improve PPP project efficiency and sustainability.
Impact of Sustainable Drainage with Porous Asphalt to Reduce Urban Flood Risk in Vulnerable Residential Areas Meny Sriwati
Engineering Science Letter Vol. 5 No. 01 (2026): Engineering Science Letter
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/IISTR.esl.001551

Abstract

Climate change and rapid urbanization in Makassar have increased the frequency of heavy rainfall, causing excessive runoff and flooding in densely populated areas. Conventional drainage systems are no longer able to accommodate the increased water volume, thus creating an urgent need for sustainable engineering solutions. The objectives of this study were to test the effectiveness of porous asphalt in managing stormwater runoff and increasing infiltration, and to develop a sustainable drainage system model that suits the hydrological, technical, and socio-economic conditions of tropical urban areas. The method used was a quantitative experiment with a hydrological and environmental engineering approach. The study sample included twenty field test locations in flood-prone areas of Makassar. Data were collected through field infiltration measurements, SWMM simulations, and laboratory asphalt porosity tests. Analysis was performed using multiple linear regression and hydrological model validation. The results showed that porous asphalt was able to increase infiltration capacity from 210 to 340 mm/hour and reduce surface runoff volume by 40.7 percent. The inundation depth was reduced by half from the initial condition, and the drainage system efficiency increased from an index of 3.2 to 4.3. The correlation coefficient between porosity and infiltration reached 0.79 (p < 0.01), indicating a strong positive relationship. These findings indicate that the application of porous asphalt effectively reduces flood risk while improving environmental quality. In conclusion, porous asphalt is a feasible technical and ecological solution for water runoff management in tropical areas. Therefore, a sustainable drainage system based on porous asphalt can be a strategic component in adaptive urban development to climate change.
WATER MANAGEMENT AND CONSERVATION INSPIRED BY PROPHETIC TRADITIONS: AN ENGINEERING MODEL FOR SUSTAINABLE WATER USE Meny Sriwati; Nasser Qudah; Sebastian Koch
Journal of Moeslim Research Technik Vol. 2 No. 4 (2025)
Publisher : Yayasan Adra Karima Hubbi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70177/technik.v2i4.2501

Abstract

Water management and conservation are critical challenges in the modern world, especially in regions facing water scarcity. Prophetic traditions provide valuable insights into sustainable water use, emphasizing conservation, moderation, and respect for natural resources. These traditions have long guided practices that promote efficient water management, which is increasingly relevant in the context of contemporary environmental challenges. This research aims to explore how the principles derived from prophetic traditions can inform engineering models for sustainable water use. The study utilizes a multidisciplinary approach, combining historical insights from Islamic teachings with modern engineering techniques to develop a model for efficient water management and conservation. Through case studies, qualitative analysis, and design simulations, this research evaluates the application of prophetic water conservation methods in modern water systems. The results demonstrate that integrating these practices, such as limiting water wastage, using water-efficient technologies, and promoting communal responsibility, can significantly enhance water conservation efforts in both urban and rural settings. The study concludes that a sustainable water management model inspired by prophetic traditions can effectively address current water scarcity issues while preserving ecological balance and fostering community awareness.
Co-Authors Mardewi Jamal Nasser Qudah Nur Khaerat Nur Rini Damayanti Sebastian Koch Sudirman