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INDONESIA
MEDIA KOMUNIKASI TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : 08541809     EISSN : 25496778     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isn’t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.
Arjuna Subject : -
Articles 489 Documents
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Evaluasi Kinerja Strategi Sinyal Prioritas Bus pada Sistem Bus Rapid Transit Budi Yulianto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.78174

Abstract

Population growth and rapid urbanization have increased transportation demand and triggered traffic problems. Capacity-based approaches often exacerbate these conditions, highlighting the need for a sustainable transportation concept. The government has designated the development of public transportation as a national priority program, one of which is through bus rapid transit (BRT). To ensure the efficiency, reliability, and attractiveness of BRT, the implementation of bus signal priority (BSP) is essential. This study aims to evaluate the performance of passive and active BSP strategies at signalized intersections within a BRT system using VISSIM microscopic simulation. The strategies analyzed include cycle time adjustment, phase splitting, red truncation, green extension, and phase insertion. The simulation results indicate that the most effective strategies are cycle time adjustment with the early cut off concept for passive BSP and phase insertion for active BSP. The performance of BSP strategies is influenced by the number of phases, traffic movement patterns, and bus service frequency, which vary according to the applied strategy. This study recommends selecting BSP strategies through comprehensive simulation study to achieve both effective performance and cost efficiency before implementation.
Kinerja Model Kotak Infiltrasi Pada Kondisi Tanah Jenuh dan Tidak Jenuh untuk Mengurangi Genangan di Jalan Perkotaan Awliya Tribhuwana; Slamet Imam Wahyudi; Moh Faiqun Ni'am; Henny Pratiwi Adi
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 2 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i2.70837

Abstract

Flooding on road surfaces due to heavy rainfall is a major problem, especially in urban areas. This situation requires an infiltration-based control system in accordance with the Low Impact Development (LID) concept. The infiltration box model is one solution to reduce inundation around road medians. This study aims to realize the infiltration box model, analyze the flow behavior of the model in the road median, and compare the model's performance under saturated and unsaturated soil conditions. The research method was carried out experimentally using flow in a laboratory flume channel. Based on the road area and return rainfall for a 2-year period, a discharge model of 0.109 l/s was used. The parameters analyzed included runoff discharge, infiltration discharge, and the volume of the box reservoir. The results showed that under saturated soil conditions, runoff reached 74.69% of the rainfall discharge, while infiltration and reservoir were only 11.20% and 5.89%, respectively. Under unsaturated soil conditions, runoff decreased to 46.65%, while infiltration increased to 30.43% and the box reservoir to 12.78%. Infiltration discharge in unsaturated soil was recorded at approximately 2.7 times greater than in saturated soil. These results demonstrate the influence of soil water content on the infiltration box performance model. Infiltration boxes should be integrated with other road drainage systems, including water pipes running under the road to the roadside drains.
Perencanaan Waktu Pencacahan Lalu Lintas Optimal di Jalan Kolektor Sekunder Perkotaan: Pemanfaatan Data Waktu Populer Google Maps (Studi Kasus: Kota Semarang, Indonesia) Alfa Narendra; Ahmad Wildan Diyafillah; Alfiansyah Nur Abdillah; Annas Ridho Agustiyar; Devi Sajna Risay Aszahro; Muhammad Rahil Danial Maula; Nadifa Silviana
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.79549

Abstract

Conventional traffic volume surveys used to identify peak hours require extensive data collection periods, often taking up to 84 days. Although Narendra (2022) proposed leveraging the Google Maps "Popular Times" feature as a rapid alternative, empirical validation regarding its reliability on urban secondary collector roads remains limited. This study aims to empirically validate the effectiveness of this Google Maps-based peak hour estimation method. Primary traffic data were gathered through direct field observations over a 3-hour window (comprising 1 hour before, during, and 1 hour after the predicted peak) across six two-lane two-way undivided (2/2 UD) urban secondary collector road segments in Semarang, Indonesia. Statistical t-tests and exploratory data analysis were employed to evaluate the alignment between empirical observations and Google Maps secondary data. Results reveal no statistically significant difference between empirical peak times and Google Maps "Popular Times" predictions, with observed time discrepancies ranging from -60 to +50 minutes. Consequently, this Google Maps-based methodology serves as a valid and efficient alternative for urban traffic counting survey. A 3-hour observation window encompassing pre-peak, peak, and post-peak periods is recommended for application.
Pemetaan Bahaya Banjir di Daerah Aliran Sungai dengan Keterbatasan Data: Studi Kasus Sungai Lakitan, Indonesia Obaja Triputera Wijaya; Andrew Widjaja; Calvin Wimordi
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.78656

Abstract

Flood hazard maps are a basic instrument of disaster risk management, yet their preparation normally assumes that streamflow, water level and inundation records are available for model calibration. This study therefore aims to establish a flood hazard mapping framework for data-scarce basins, and to examine how far the resulting classification depends on the assessment framework adopted. GPM satellite rainfall, DEMNAS topography, HWSD soil and MoEF land cover were combined with hydrological (HEC-HMS) and two-dimensional hydraulic (HEC-RAS) modeling to simulate the 2-, 5-, 10-, 25- and 50-year return periods. The GPM rainfall was bias-corrected against the BMKG Tugumulyo station and two hydrological configurations were run in parallel in place of calibration, with the simulated inundation verified against observed flood extents. Hazard was then classified under the BNPB, DEFRA and Australian Government frameworks. For the 25-year return period DEFRA produced the largest extreme hazard zone (467.74 ha), followed by BNPB (384.39 ha) and the Australian Government model (323.87 ha). All three-concentrate extreme hazard along the riverbanks, but their areas are not directly comparable because of differences in parameters and thresholds. Credible flood hazard mapping is therefore attainable without in-situ calibration data, while the BNPB framework still requires clearer definitions of the inundation threshold and of how the flood area and frequency indices are applied spatially.
Optimalisasi Penempatan Dinding Geser untuk Meningkatkan Kinerja Seismik Bangunan Bertingkat Tinggi Menggunakan Analisis Pushover Samsul Abdul Rahman Sidik Hasibuan; Hakas Prayuda; Anizahyati Alisibramulisi; Suraya Hani Adnan; Tengku Anita Raja Hussin
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.74056

Abstract

High-rise reinforced concrete buildings are susceptible to seismic forces due to their slenderness and flexibility, necessitating effective lateral load-resisting systems. This study investigates the optimal placement of shear walls to enhance seismic performance. A seven-story symmetrical building model was developed in ETABS v.9.7.4, following ASCE/SEI 7-16 and ACI 318-19 standards. Five configurations were analyzed: one control model without shear walls and four others with different wall arrangements. Nonlinear static pushover analysis was employed to evaluate structural response under lateral loading. Performance metrics such as natural period, story displacement, drift ratio, base shear capacity, and pushover behavior were examined. Results indicate that shear wall presence and positioning significantly impact seismic response. The model with symmetrically placed shear walls (Model 3) achieved the best performance, showing a 44.7% reduction in fundamental period, a 40% increase in base shear capacity, and a 47.5% decrease in story drift. These findings highlight the effectiveness of symmetric shear wall layouts in improving seismic resilience. This research offers practical guidance for structural engineers in optimizing lateral systems for earthquake-resistant high-rise buildings.
Penerapan Serat Kulit Pinang dan Superplastisizer Untuk Meningkatkan Kuat Tekan dan Workability Beton Dengan Rasio Air-Semen Rendah Teuku Farizal; Teuku Budi Aulia; Dewi Purnama Sari; Mohd. Iqbal
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.75065

Abstract

Concrete with a low water-to-cement ratio (W/C 0.35) enhances compressive strength and environmental durability, but it often faces challenges related to workability, which can affect casting quality. This study aims to evaluate the impact of adding Areca nut husk fiber and superplasticizer on the compressive strength and workability of concrete at 7 and 28 days of curing. The experiment involved variations in concrete mixtures: normal concrete, concrete with 2.1% superplasticizer without fiber, and concrete with 2%, 2.5%, and 3% Areca nut husk fiber combined with 2.1% superplasticizer. Compressive strength tests followed ASTM C39 standards, while workability was measured using the slump test (ASTM C143). The results showed that adding 2% Areca nut husk fiber with 2.1% superplasticizer increased the compressive strength by 33.56% at 7 days and 23.14% at 28 days compared to normal concrete. This combination also resulted in the highest slump value of 9,8 cm, indicating improved workability. However, adding more than 2.5% fiber reduced compressive strength, suggesting an optimal fiber usage point. This study concludes that combining Areca nut husk fiber and superplasticizer improves low W/C ratio concrete performance without compromising workability, supporting the development of high-performance and environmentally friendly concrete.
Monitoring Luasan Embung Menggunakan Google Earth Engine (GEE): Studi Kasus di Kecamatan Rote Barat Daya NTT Haryono Putro; Ade Suhendar Sutisna
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.83990

Abstract

This study aims to monitor the surface area of 13 small reservoirs in the Southwest Rote District, East Nusa Tenggara (NTT), using the Google Earth Engine (GEE) platform over a five-year period (2019–2024). The methodology involved the collection and processing of landsat satellite imagery, the integration of rainfall and rainy-day data from CHIRPS, and an analysis of changes in reservoir surface area over time. The study leveraged GEE’s cloud computing capabilities to efficiently process large-scale data. The results demonstrate that GEE is effective for mapping and monitoring changes in reservoir surface area, evidenced by a model accuracy (R²) of 0.8178 and a positive correlation (r) of 0.668 when compared against manual delineation measurements. Changes in reservoir surface area were analyzed to identify trends and patterns associated with factors such as rainfall, irrigation demands, and human activity. These findings provide crucial information for sustainable water resource management, particularly in the context of arid regions like NTT. The analysis also contributes to the understanding of hydrological dynamics in the area and establishes a foundation for improved decision-making regarding reservoir management. This study highlights the potential of GEE as a powerful tool for monitoring water resources in hard-to-reach areas and contributes to the development of remote sensing-based monitoring methodologies.
Optimalisasi Konservasi Air Melalui Sumur Resapan Untuk Mengatasi Dampak Urbanisasi Studi Kasus di Perumahan Nuansa Alam Cilebut Asri Diyanti Diyanti; Nur Mila Sari; Rehulina Apriyanti
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.82747

Abstract

The rapid expansion of the Nuansa Alam Cilebut Asri Housing Area has transformed 6 hectares of agricultural land into residential areas, resulting in the loss of natural infiltration zones due to increased impervious surfaces from roads and buildings. This land-use change has altered the hydrological characteristics of the area by increasing surface runoff, intensifying inundation risks during extreme rainfall events, and reducing groundwater recharge capacity. This study evaluates water conservation measures to mitigate inundation impacts through the implementation of infiltration wells. A quantitative approach was applied by integrating soil permeability testing, frequency analysis of 10-year historical rainfall data from three observation stations, and assessment of suitable water conservation structures. The Log Pearson Type III distribution was selected based on the goodness-of-fit test for a 2-year return period, producing a design rainfall of 109.107 mm/day and a design runoff discharge of 0.284 m³/s. The analysis indicates that the runoff can be effectively controlled through the construction of 360 infiltration wells with a diameter of 1 m, a depth of 3 m, a storage capacity of 2.36 m³, and a filling duration of 2 hours and 20 minutes. The proposed green infrastructure approach significantly reduces surface runoff and enhances the hydrological resilience of the area through sustainable groundwater recharge.
Optimasi Sinyal Ramp Metering pada Lalu Lintas Perkotaan yang Didominasi Sepeda Motor Menggunakan NSGA-II Siti Raudhatul Fadilah
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.79176

Abstract

Motorcycles are a dominant mode of urban mobility in many Southeast Asian cities because of their affordability, flexibility, and ability to maneuver through congested streets. However, their high share creates dense and heterogeneous traffic conditions, where conventional traffic control strategies may become less effective. This study develops a motorcycle-sensitive ramp metering strategy for urban road networks to regulate motorcycle entry onto the main road and reduce congestion. A multiobjective optimization framework based on the Non-Dominated Sorting Genetic Algorithm II (NSGA-II) is applied with two objectives: maximizing total vehicle travel distance and minimizing main-road occupancy. Traffic performance is evaluated using microscopic simulation on a grid-based urban network under mixed-traffic conditions, with motorcycle proportions ranging from 20% to 80%. The optimization results identify representative signal timings of 8.98 s for the red phase and 7.32 s for the green phase. The best performance is obtained when the motorcycle proportion on the main road is approximately 60% or lower, as this condition balances road-space utilization and travel efficiency. Above this level, the benefits decrease because of increased motorcycle accumulation on the ramp. These findings suggest that scenario-based ramp metering can support urban traffic management in motorcycle-dependent cities and rapidly growing Southeast Asian contexts.
Sistem Peringatan Dini Banjir: Tinjauan Literatur tentang Konsep, Perkembangan, dan Implementasinya di Indonesia Calvin Wimordi; Doddi Yudianto; Obaja Triputera Wijaya
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 32, Nomor 1 (2026)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v32i1.84709

Abstract

Rapid urbanization and intensifying climate change significantly escalate flood risks in Indonesia, yet the effectiveness of current early warning systems is often hampered by technological fragmentation and regional implementation disparities. This study evaluates the evolving landscape of Flood Early Warning Systems (FEWS) through a comprehensive review of its five fundamental components. A systematic literature review was conducted by analyzing academic research and technological prototypes implemented across the archipelago between 2015 and 2026. The findings indicate substantial technical progress in localized monitoring and predictive modeling; however, implementation remains geographically uneven and predominantly concentrated in metropolitan regions. Furthermore, a persistent silo effect prevents the cohesive integration of monitoring, forecasting, and risk assessment into a unified operational framework. This study concludes that achieving a truly resilient FEWS requires bridging the functional gap through multi-agency synergy and the integration of technical precision with local social capital. Such an integrated approach is vital for ensuring that technological alerts translate into effective community protective actions within a diverse geographical context.

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