Garuda - Garba Rujukan Digital

Alternative Design Solutions For Flexible And Rigid Pavements In The Sampang-Ketapang Road Widening Project (Section 113) Muhammad Zainal Muttaqin; Esti Wulandari; Laksono Djoko Nugroho
Journal of Social Science Vol. 6 No. 1 (2025): Journal of Social Science
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

The Sampang-Ketapang road segment (Link 113) plays a pivotal role in regional connectivity, supporting economic and social activities in Sampang Regency, a hub for salt and tobacco production. This study compares two pavement design alternatives: flexible pavement using Class A aggregate with a thickness of 200 mm and rigid pavement with a flexural strength of 4.5 MPa and a thickness of 300 mm. The analysis evaluates cost efficiency, implementation time, and suitability for the increasing traffic demands of the region. The results show that flexible pavement requires an investment of IDR 12.8 billion and a 7-month construction duration, while rigid pavement demands IDR 19.5 billion and a 9-month duration. Flexible pavement offers lower initial costs and shorter implementation time, making it a more feasible option for segments with moderate traffic. However, it requires more frequent maintenance, increasing long-term expenses. Conversely, rigid pavement is more durable, with minimal maintenance costs, but has higher initial costs and a longer construction timeline. Considering the economic and technical aspects, flexible pavement is recommended as the optimal solution for this project due to its cost-effectiveness and shorter timeline, ensuring efficient resource utilization. Strategic implementation combining both pavement types is also proposed, with flexible pavement for moderate traffic areas and rigid pavement for segments with heavy traffic. This approach balances cost efficiency, implementation time, and long-term durability, supporting the sustainable development of road infrastructure in Sampang Regency

Alternative Design Solutions For Flexible And Rigid Pavements In The Sampang-Ketapang Road Widening Project (Section 113) Muhammad Zainal Muttaqin; Esti Wulandari; Laksono Djoko Nugroho
Journal of Social Science Vol. 6 No. 1 (2025): Journal of Social Science
Publisher : Syntax Corporation Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

The Sampang-Ketapang road segment (Link 113) plays a pivotal role in regional connectivity, supporting economic and social activities in Sampang Regency, a hub for salt and tobacco production. This study compares two pavement design alternatives: flexible pavement using Class A aggregate with a thickness of 200 mm and rigid pavement with a flexural strength of 4.5 MPa and a thickness of 300 mm. The analysis evaluates cost efficiency, implementation time, and suitability for the increasing traffic demands of the region. The results show that flexible pavement requires an investment of IDR 12.8 billion and a 7-month construction duration, while rigid pavement demands IDR 19.5 billion and a 9-month duration. Flexible pavement offers lower initial costs and shorter implementation time, making it a more feasible option for segments with moderate traffic. However, it requires more frequent maintenance, increasing long-term expenses. Conversely, rigid pavement is more durable, with minimal maintenance costs, but has higher initial costs and a longer construction timeline. Considering the economic and technical aspects, flexible pavement is recommended as the optimal solution for this project due to its cost-effectiveness and shorter timeline, ensuring efficient resource utilization. Strategic implementation combining both pavement types is also proposed, with flexible pavement for moderate traffic areas and rigid pavement for segments with heavy traffic. This approach balances cost efficiency, implementation time, and long-term durability, supporting the sustainable development of road infrastructure in Sampang Regency

NUMERICAL ANALYSIS OF PORE WATER PRESSURE, SEEPAGE, AND SLOPE STABILITY DURING MENINTING DAM PRE-IMPOUNDING Jiden Desta Mahendro; Andi Patriadi; Esti Wulandari
Acitya Wisesa: Journal of Multidisciplinary Research Vol. 5 Issue 1 (2026)
Publisher : jfpublisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56943/jmr.v5i1.920

Meninting Dam in West Lombok represents strategic hydraulic infrastructure requiring comprehensive evaluation of pore water pressure, seepage behavior, and slope stability during the initial impoundment phase. This study evaluates the dam's hydraulic and geotechnical response through numerical simulation using SEEP/W and SLOPE/W software, validated against field instrumentation data. Numerical modeling demonstrates that reservoir elevation increase from 168.50 m to 196.06 m induces elevated pore water pressure within the core zone, with a maximum value of 505.55 kPa recorded at monitoring instrument Pe.3. Concurrently, seepage discharge escalates from a range of 0.00378 to 0.0133 m³/s during initial filling to 0.0637 m³/s at near-normal water level. These hydraulic responses remain within acceptable operational parameters for earthfill dam structures. Slope stability analysis yields safety factors ranging from 2.052 to 2.860, substantially exceeding the minimum regulatory threshold of FS ≥ 1.5 and confirming structural stability under normal operational conditions. The findings recommend enhancement of the instrumentation monitoring protocol and establishment of an early warning system to improve detection capabilities for pore water pressure fluctuations, seepage anomalies, and potential slope instability mechanisms.

ANALYSIS OF WATER DEMAND AND AVAILABILITY IN THE PRUMPUNG WATERSHED, TUBAN Rony Zakariya; Andi Patriadi; Esti Wulandari
Acitya Wisesa: Journal of Multidisciplinary Research Vol. 5 Issue 1 (2026)
Publisher : jfpublisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56943/jmr.v5i1.927

Water constitutes a vital natural resource supporting human life, agricultural activities, and regional development. Limited water availability coupled with continuously increasing water demand due to population growth and agricultural activities necessitates data-based water resource planning and management. This research aimed to analyze water demand and water availability in the Prumpung Watershed, Tuban Regency, for the 2025-2029 projection period. The research employed a descriptive quantitative approach utilizing population, land use, and rainfall data. Domestic water demand was calculated based on per capita consumption standards and population projections, while non-domestic water demand was calculated from rice field irrigation requirements based on land area and cropping intensity. Water availability was calculated based on surface runoff volume obtained from annual rainfall, runoff coefficient, and watershed area. The analysis results indicate that domestic water demand increases from 2,389,812 m³ in 2025 to 2,491,776 m³ in 2029. Non-domestic water demand increases from 91,034,789.98 m³ to 92,943,134.36 m³, bringing total water demand from 93,424,602.32 m³ to 95,434,910.78 m³. Meanwhile, average annual water availability amounts to 84,586,033.31 m³. The comparison between water demand and water availability demonstrates that water demand exceeds water availability throughout all projection years. Therefore, efforts to improve water use efficiency, particularly in the irrigation sector, and catchment area conservation are required to maintain water resource sustainability in the Prumpung Watershed.

Design Analysis of Flexible and Rigid Pavements For The Sampang-Ketapang Road (Link 113): A Cost and Time Perspective Muhammad Zainal Muttaqin; Esti Wulandari; Laksono Djoko Nugroho
Journal of Social Research Vol. 4 No. 3 (2025): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v4i3.2474

This study evaluates the costs and implementation times for flexible and rigid pavement designs for the Sampang-Ketapang road (Link 113) using the 2024 Pavement Design Manual. The flexible pavement design, using Class A aggregate with a thickness of 200 mm, costs IDR 12,804,591,492 and requires a 7-month implementation period. In contrast, the rigid pavement design, with 300 mm concrete and a flexural strength of 4.5 MPa, costs IDR 19,513,787,534 and takes 9 months to complete. While flexible pavement is more cost-efficient and quicker to implement, making it suitable for projects with budget and time constraints, rigid pavement offers greater durability and reduced maintenance over time, which may justify its higher initial cost for roads with heavy traffic. This study emphasizes the importance of selecting the appropriate pavement type based on traffic conditions, subgrade characteristics, and budget limitations. Flexible pavement is recommended for segments with moderate traffic and short-term construction needs, while rigid pavement is better suited for high-traffic areas requiring long-term durability. The research suggests a strategic combination of both pavement types to optimize cost and efficiency while ensuring sustainability. The findings provide practical guidance for stakeholders in road infrastructure projects, offering a framework to balance initial costs, construction timelines, and long-term maintenance to achieve optimal outcomes in road widening projects like the Sampang-Ketapang road expansion.

Integrated Flood Risk and Embankment Stability Modeling in the Comoro River, Timor-Leste using HEC-RAS and GIS Kris Minaryo; Hanie Teki Tjendani; Esti Wulandari; Rahmad Junaidi; Andiyan Andiyan; Shreeniwas Omanwar
International Journal of Hydrological and Environmental for Sustainability Vol. 4 No. 3 (2025): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v4i3.961

Dili, the capital city of Timor-Leste, is increasingly vulnerable to flooding due to its geomorphological characteristics and rapid urban expansion. The Comoro River, the largest of several rivers traversing the city, has experienced multiple significant flood events in recent years most notably in March 2020, April 2021, and February 2022 resulting in severe damage to infrastructure and disruption to local communities. Urban development has led to watershed degradation, sediment accumulation, reduced channel capacity, and embankment overtopping, exacerbating flood risks in densely populated areas. This study aims to assess flood risk and evaluate embankment resilience using an integrated modeling approach. Design flood discharge was estimated using the Log Pearson Type III distribution and the Nakayasu synthetic unit hydrograph, with validation through Chi-Square and Kolmogorov-Smirnov goodness-of-fit tests. Hydraulic simulations were conducted using HEC-RAS 6.1.0 programme, while flood inundation mapping was performed with ArcGIS 10.3 to identify critical flood-prone zones and guide mitigation strategies. Results indicate a peak discharge of 192.141 m³/s for a 25-year return period flood. Mitigation measures proposed include embankment construction and river normalization at vulnerable cross-sections. HEC-RAS simulations demonstrate that these interventions significantly reduce flood inundation. The embankment slope stability factor was calculated at 7.55, indicating a high level of structural safety. The estimated cost for implementing these flood control measures is USD 571,366.87. This study provides a replicable framework for flood hazard modeling and infrastructure planning in urban river systems, contributing to climate-resilient development and evidence-based decision-making in Southeast Asian contexts.

Analysis of the Construction of Infiltration Wells in Pondok Jati Housing, Sidoarjo to Reduce Surface Flow for Flood Prevention Efforts Hasan Alif Fathurokman; Esti Wulandari; Laksono Djoko Nugroho
TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES Vol. 4 No. 1 (2025): JANUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/tires.v4i1.1561

Water stored on the surface generally turns into runoff and much faster than groundwater considering the very low flow rate of the latter. Drainage of the Pondok Jati residential area is less able to receive or accommodate rainwater discharge because the development and growth of a city is one of the triggers for increasing the volume of discharge that passes through the residential area. Land use will affect the percentage of water that seeps into the soil with surface flow. Land with dense populations and many buildings, infiltration wells must be made more and larger in volume. Either with individual infiltration wells or with infiltration wells collectively for several houses, the need for infiltration wells from each block to reduce runoff that occurs with a 10-year return period plan. For the specifications of this infiltration well, concrete pipes are used. This infiltration well itself has concrete pipe walls with a diameter of 100 cm (1 meter) with the depth of the infiltration well is 300 cm (3.0 meters) and the number of points needed. The cost of making an infiltration well with a total of 210 infiltration wells in the Pondok Jati Sidoarjo housing complex is Rp. 696.358.600,- .

Analysis of Factors Affecting Clean Water Service in Dili City Orlando Gomes; Esti Wulandari; Laksono Djoko Nugroho
TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES Vol. 4 No. 2 (2025): APRIL
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/tires.v4i2.1603

Availability of clean water is a basic need in Dili City, Timor Leste, but uneven distribution, inadequate infrastructure, and limited resources are the main challenges. This study aims to analyze the factors that influence clean water services. The research method included multiple linear regression analysis to identify influential factors. Data was obtained through surveys, interviews, official reports and literature review. The results showed that piping distance and number of family members positively influenced water quality and quantity, while household income tended to decrease water quality and quantity. Expenditure on clean water improves water quality and quantity. For water continuity, the number of people in the family had a strong positive effect, while other factors had a negative effect. The coefficient of determination for water quality is 5.3%, water quantity 20.9%, and water continuity 5.9%, indicating that many other factors influence water services in Dili City.

Projected Analysis of Fulfilling Pdam Clean Water Needs in Domestic Customers of Waginopo Village, Wangi-Wangi District, Wakatobi District Jamiludin Jamiludin; Esti Wulandari; Hanie Teki Tjendani
Interdiciplinary Journal and Hummanity (INJURITY) Vol. 3 No. 5 (2024): INJURITY: Journal of Interdisciplinary Studies.
Publisher : Pusat Publikasi Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58631/injurity.v3i5.206

Clean water is a very vital need for society, to meet the needs for drinking water, bathing, cooking, washing and including industrial needs. The existence of clean water in an area is very important considering the very dynamic activities of society. In its implementation, the drinking water supply system in Waginopo Village has not been able to run smoothly. In fact, according to a temporary survey that has been carried out, PDAM water only flows once every 2 days, once a week and the maximum flow time is only 12 hours. The aim of this research is to calculate the amount of clean water needed for the service area of Waginopo Village, Wangi-Wangi District, Wakatobi Regency until 2033. In this research, not only numerical data will be collected, but also information about what the community desires regarding the performance of the clean water distribution system, so this research study approach uses a combination of quantitative and qualitative approaches. From the results of the analysis it can be said that the total water demand of PDAM Wakatobi Regency for the Waginopo Village service area in 2033 is 867,894 m3/year. Meanwhile, based on water demand in 2024, it is 592,737 m3/year. So the calculation results from 2024 to 2033 have increased.

Priority Sequence Analysis of Local Primary Road Bridge Infrastructure Handling Using AHP and TOPSIS Methods in Bojonegoro Regency Arik Nur Cahyo; Esti Wulandari; Andi Patriadi
Jurnal Teknik Indonesia Vol. 5 No. 3 (2026): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v5i3.921

Optimal management of bridge infrastructure requires effective planning and implementation. Currently, bridge maintenance prioritization in Bojonegoro Regency faces challenges due to budget limitations resulting from central government efficiency policies. Therefore, selecting priority bridges from the list proposed in the budget implementation document is essential to ensure that bridge maintenance programs managed by the Public Works and Spatial Planning Office are implemented efficiently and appropriately. This study aimed to analyze the priority sequence for handling primary local road bridge infrastructure in Bojonegoro Regency by considering various aspects and criteria objectively. Among various decision-making methods, the Analytical Hierarchy Process (AHP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) were considered suitable approaches because they assist in solving complex decision-making problems by organizing criteria and alternatives into a hierarchical structure. The results of the AHP and TOPSIS analyses showed different priority rankings for bridge handling. Based on the AHP method, the priority order was Bridge Sambeng–Kedewan 19, Bridge Sambeng–Besah 5, Bridge Sumberrejo–Kepohkidul 2, Bridge Watujago–Bobol 3, Bridge Sidobandung–Sepat 6, and Bridge Kapas–Sampang 1. Meanwhile, the TOPSIS method produced the priority order of Bridge Sambeng–Kedewan 19, Bridge Watujago–Bobol 3, Bridge Sambeng–Besah 5, Bridge Sumberrejo–Kepohkidul 2, Bridge Sidobandung–Sepat 6, and Bridge Kapas–Sampang 1.

Title

Found 10 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search