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I Putu Elisa Sarassantika
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jipe.mril.unwar@gmail.com
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Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University, Denpasar-Bali, Indonesia, 80235
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INDONESIA
Journal of Infrastructure Planning and Engineering
Published by Universitas Warmadewa
ISSN : -     EISSN : 28295153     DOI : https://doi.org/10.22225/jipe
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering
Journal of Infrastructure Planning and Engineering (JIPE) is a peer-reviewed and open-access journal that was launched by the Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University, Denpasar, Bali in 2022. This journal publishes regularly twice a year in April and October however, it is possible to publish a supplement issue. Supplements are not mandatory publishing and are only issued if deemed necessary. JIPE welcomes submissions across a range of disciplines and publishes both theoretical and practical studies.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 7 Documents
 1 
Search results for , issue "Vol. 4 No. 2 (2025)" : 7 Documents clear
Evaluation of multimodal transportation integration facilities at Serang station Anggun Nur Oktaviani; Muhammad Oka Mahendra
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.72-82

Abstract

This study aims to evaluate the performance of multimodal transportation integration facilities at Serang Station, a major transportation hub in the Jakarta-Merak corridor serving 15,000 passengers per day. Key issues identified include fragmented pedestrian paths, a 450 m intermodal distance exceeding the 300 m TOD standard (SNI 03-7065-2005), limited covered waiting areas, and a lack of directional signs. This evaluation addresses the urgent need to improve travel efficiency and user satisfaction, contributing to sustainable urban development and reducing economic losses due to congestion. The Customer Satisfaction Index (CSI) was used to measure user perceptions of 16 facility attributes, and Importance-Performance Analysis (IPA) was used to prioritize improvements based on the gap between expectations and performance. The results showed very low levels of satisfaction with disabled access (CSI = 20%), lighting, zebra crossings, and bus stops (CSI = 20–46%), far below the average CSI of 52.52%, making them top priorities for improvement. Meanwhile, cleanliness, public restrooms, and gentle slopes meet user expectations. Recommendations include improved lighting, a microtransit hub within a 500-meter radius, additional trash bins, improved access for the disabled, improved markings/signage, and the construction of protected bus stops to support equitable, efficient, and sustainable urban mobility.
Analysis of unconfined compressive and shear strength of clay mixed with a based combination of rice husk ash and NaOH Ance Fungki Manik; Nahesson Panjaitan; Suhairiani Suhairiani; Febryani Gabriella
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.54-62

Abstract

Clay is a type of soil that is generally characterized by its low load-bearing capacity. Due to the nature of clay minerals, which easily absorb and store water, clay soil is not generally considered suitable for use as a basic building material. This study analyzes changes in the unconfined compressive strength and shear strength of clay soil mixed with rice husk ash (RHA), NaOH, and a combination of rice husk ash and NaOH. The research method involves laboratory tests on original soil samples and soil samples that have been stabilized with varying levels of additives. The results showed that adding rice husk ash, NaOH, or both changed the properties in all tested samples. Unconfined compressive strength testing with varying amounts of rice husk ash (8%, 17%, 25%) showed the highest compressive strength increase of 28.19% at 8% RHA. Meanwhile, adding different amounts of solid NaOH (10%, 14%, and 25%) did not increase the soil's unconfined compressive strength. Mixing rice husk ash and NaOH also did not increase the soil's unconfined compressive strength; rather, it decreased the original soil's rigidity. Direct shear strength tests with RHA variations (8%, 17%, and 25%) showed the greatest increase at 8% of the original soil content, reaching 28.9%. This value decreased with an increased RHA percentage. Adding solid NaOH at different ratios (10%, 14%, and 25%) showed the greatest increase at 10%, with an increase of 14.68%; however, it decreased with increasing NaOH content. The mixture of RHA and NaOH increased in all variations. The highest direct shear strength value occurred in the 25% RHA + 25% NaOH mixture, which increased by 54.13% compared to the original soil. This study showed that RHA can increase soil strength through reactions with water and soil particles. However, these results emphasize the importance of selecting the appropriate types and ratios of stabilizer materials in accordance with engineering requirements.
Cloud-based multitemporal shoreline change analysis using google earth engine and DSAS: A case study of Canggu Beach, Bali, Indonesia I Dewa Ayu Meia Damayanthi; Ni Nyoman Pujianiki; Silvia Gabrina Tonyes
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.83-91

Abstract

Canggu Beach, Bali, is a multifunctional coastal area that faces environmental pressures due to erosion and rapid coastal development. This study analyzed shoreline changes during the period 2016-2024 using multitemporal Sentinel-2 satellite images processed through the Google Earth Engine (GEE) platform. Shoreline extraction was performed using NDWI index and Otsu threshold method, with sea level stability control based on HYCOM data. Shoreline change analysis was conducted using Digital Shoreline Analysis System (DSAS) on 247 transects with Net Shoreline Movement (NSM) and End Point Rate (EPR) approaches. Results showed a dominant trend of accretion (NSM +16.61 m; EPR +2.26 m/year), with localized erosion (NSM -8.8 m; EPR -1.2 m/year), identified around estuary and structured areas. Spatial patterns of change were visualized in the form of multitemporal maps and statistical histograms, revealing uneven shoreline dynamics. The integration of GEE and DSAS proved effective for large-scale shoreline monitoring, and the results can provide a basis for adaptive coastal management in dynamic, multi-functional coastal areas.
Assessing land use deviations from spatial plans amid nickel mining expansion in Central Halmahera Winda Hanifah; Mirza Irwansyah; Tia Adelia
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

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

Abstract

The rapid expansion of industrial and nickel mining activities in Central Halmahera has driven dynamic changes in land use, often leading to conflicts with established spatial plans. This study identifies land use deviations from the North Maluku Provincial Spatial Plan (2024–2043) using spatial analysis techniques. Through the overlay method, recent land use and land cover data (from 2022) were compared with the designated spatial zoning plan. The analysis results show a generally high level of compliance, with approximately 98.13% of the total 247,596.80 hectares aligning with the spatial zoning plan. However, significant deviations were found in the Mangrove Zone (17.94%) and Marine Conservation Zone (47.98%) due to settlements and infrastructure development. These changes are driven by industrial growth, a surge in the workforce, and increased demand for housing and services. The findings reveal real challenges in the effectiveness of spatial planning instruments to control land use changes. Emphasis on the need for proactive and integrated spatial governance can be addressed through stricter zoning regulation enforcement, continuous monitoring, and active community involvement in the planning process to ensure sustainable land management amid ongoing extractive industry expansion.
Resilience of educational infrastructure in Nepal: A mixed methods approach to structural and functional assessment Kishor Badu; Khem Raj Joshi; Dipesh Dhami; Dipak Raj Bhatt; Shriya Bohara; Bhim Kunwar; Birendra Kumar Bohara
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.92-103

Abstract

Higher education institutions in developing nations are growing swiftly to address the increasing demand for quality education; however, their physical infrastructures frequently lack adequate evaluation regarding safety, functionality, and environmental performance. This study focuses on the Education and Humanities Building at Far Western University (FWU) in Nepal, two main academic structures built in the early 2010s that have been in continuous use without maintenance. A mixed-methods strategy was utilized, including visual assessments, non-destructive testing (NDT) using a rebound hammer, physical measurements, user surveys, and a review of secondary data. The results indicate moderate material strengths (14.46 MPa for masonry walls, 17.0 MPa for masonry columns, and 17.4–26.63 MPa for slabs), which are typical of older institutional buildings, but there are significant issues such as cracks, moisture infiltration, corrosion, and the lack of expansion joints. Assessments of indoor environmental quality revealed high thermal discomfort, as the temperatures of second-floor slabs exceeded 50 °C, inadequate ventilation due to low window-to-wall ratios (<20%), and insufficient daylighting. User surveys (n=50) revealed ongoing issues concerning structural cracks, congested circulation areas, leaking roofs, and poor maintenance, all of which adversely impact safety and learning environments. The results emphasize the critical necessity for preventive maintenance, structural upgrades, and functional enhancements to comply with Nepal National Building Code (NBC) standards and international guidelines for healthy educational settings. By merging technical evaluations with user feedback, this research offers evidence-based suggestions for improving the resilience, safety, and sustainability of higher education infrastructure in regions of far western Nepal that are prone to seismic activity.
Assessing the impact of toll gate construction on land cover alterations with google earth engine Rendy Akbar; Softy Nuzzela; Andi M. Ahsan Mukhlis
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.113-122

Abstract

In recent years, the Indonesian government has been aggressively pursuing toll road development. Infrastructure projects such as toll roads are known to stimulate economic growth and enhance the mobility of goods and people. This economic growth and increased mobility, in turn, accelerate the process of urbanization. Areas surrounding toll roads, particularly near access points and interchanges, often undergo land use conversion towards functions with higher economic value. Consequently, the presence of a toll road generates a multiplier effect on the surrounding region, encompassing both positive and negative impacts. The Trans-Java Toll Road, a major project connecting the western and eastern ends of Java Island, has been under development for a considerable period. Construction began in 1984, with the connection to Surabaya completed in 2018. Currently, the toll road extends to Probolinggo and is planned to reach Banyuwangi by 2025, spanning a total length of 1,167 km. This study aims to investigate the land cover changes resulting from the construction of the Trans-Java Toll Road, from Merak in the west to Probolinggo in the east of Java. This research employs a quantitative approach, utilizing spatial analysis and descriptive statistics within the Google Earth Engine platform to identify and analyze these land cover changes. This study reveals significant and consistent land cover transformations across the seven analyzed interchanges. Key findings from 1990 to 2020 indicate a universal increase in built-up areas, most substantially observed at the Surabaya interchange, which experienced a 17,681.09 Ha expansion of built-up land. This growth largely occurred at the expense of green areas, which decreased by 15,898.91 Ha in Surabaya and 8,102.97 Ha in Semarang. The Tangerang interchange also showed significant urbanization, with a 3,596.00 Ha increase in built-up land. These findings can serve as a crucial reference for anticipating and mitigating the potential negative consequences of future toll road projects, particularly as the government intensifies infrastructure development in regions outside of Java.
From destruction to enhanced greening: Quantifying vegetation cover dynamics in Banda Aceh 20 years after the tsunami Raja Al-Fath; Shiti Maghfira; Ahmad Jihan Muzaki; Arief Gunawan
Journal of Infrastructure Planning and Engineering Vol. 4 No. 2 (2025)
Publisher : Master Program of Infrastructure and Environmental Engineering, Postgraduate Program, Warmadewa University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/jipe.4.2.2025.104-112

Abstract

The 2004 tsunami disaster caused severe ecological damage in Banda Aceh City, destroying a vast majority of its vegetation cover. This study aims to analyze the spatio-temporal dynamics of post-disaster vegetation recovery over two decades (2004-2024) to identify the stages of ecological succession. Using a remote sensing approach, Landsat satellite imagery from 2004 (pre-tsunami), 2005 (post-tsunami), 2014 (one decade later), and 2024 (two decades later) was analyzed using the Normalized Difference Vegetation Index (NDVI). The NDVI classification results show a drastic change: the non-vegetated area surged from 67.58% in 2004 to 89.01% in 2005, while the dense vegetation class was entirely eliminated. However, a recovery process unfolded over the subsequent two decades. By 2024, the non-vegetated area had drastically shrunk to just 13.11%, while the combined area of moderate and dense vegetation surged to over 45% of the city's total area, surpassing the pre-tsunami condition. This study concludes that Banda Aceh has not only successfully restored its vegetation cover but has also undergone a significant ecosystem maturation phase. These findings provide a robust scientific basis for integrating NDVI analysis as a proactive monitoring instrument into the Banda Aceh City Spatial Plan (RTRW) to support sustainable and disaster-resilient urban development.

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