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Astonjadro
Published by Universitas Ibn Khaldun Bogor
ISSN : 23024240     EISSN : 26552086     DOI : http://dx.doi.org/10.32832/astonjadro
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Astonjadro: Jurnal Rekayasa Sipil adalah jurnal ilmiah dibidang teknik sipil p-ISSN : 2302-4240 dan e-ISSN : 2655-2086. Jurnal Rekayasa Sipil Astonjadro diterbitkan untuk mengapresiasi dan memberikan informasi ilmiah bagi peneliti, dosen serta para profesional. termasuk dalamnya pengembangan model dan konsep penelitian yang mengacu secara berkesinambungan. Jurnal Astonjadro diterbitkan oleh Fakultas Teknik dan Sains Universitas Ibn Khaldun Bogor, terbit dua kali dalam satu tahun yaitu bulan Juni dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 507 Documents
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Mangrove Management Strategy as a Conservation Effort in Coastal Tarakan City Lukman, Lukman; Sodikin, Sodikin; Munawir, Abdillah
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

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

Abstract

One of the important components in the mangrove ecosystem is the mangrove forest. Mangrove forests consist of various types of woody and leafy trees. Parts of the roots, stems, leaves, and fruit can be utilised. The existence of mangroves certainly has a positive impact on the ecosystem and the survival of the community around the mangrove area, some of the main benefits of mangroves such as: preventing coastal erosion, protection of marine habitat and fisheries, a source of fodder for livestock and other animals, preventing global warming, the existence of mangrove ecosystems become a source of income for fishermen on the coast, as well as several other benefits that certainly greatly support the sustainability of marine habitat and development and economic development of the community. Mangroves also have a role as a source of nutrients that affect the structure, function, and balance of nutrients in an ecosystem. In addition to acting as a habitat for living things, mangrove forests also have great benefits and have the potential to improve the economic level of coastal communities. These benefits are obtained from renewable natural resources such as fish, shrimp and other economic biota; sources of firewood and processed food; and can be an educational and tourist area. The research method where the type of research used is descriptive qualitative, the source of information is the agency and the parties directly involved in managing mangroves, both organisations, self-help and local communities. Analysis using SWOT and AHP. The results showed that the strengths and weaknesses in management support each other, because the strengths in management are effective enough to compensate for the weaknesses that have not been pursued by the local government. The opportunities are good enough to be able to improve management to continue to be developed, but on the one hand threats remain which of course can encourage weak management of mangrove areas in Tarakan City. While based on AHP analysis that the most important mangrove management is improved is to involve human resources efficiently because it is a more dominant factor that needs to be applied so that the management of mangrove areas in Tarakan city can be more effective.
Analysis of Performance on Road Section RSAI–UNINUS Soekarno Hatta Highway Bandung Base on Traffic Flow Characteristic Akbardin, Juang; Ma’soem, Dadang Mohamad; Rahmat, Fani Luthfiani Nur
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15722

Abstract

Population growth and private vehicle ownership can affect traffic conditions, the economy, and so on. If this condition is allowed and occurs continuously, the government will experience obstacles in the economy and the community will pay for travel costs which are increasing every year. So it is necessary to calculate the performance of the road. According to the calculation, the slow lane tends to have a poor level of road service, for the highest saturation degree value with a value of 0.98 found in the slow lane, the 2nd research point, and the direction road from RSAI to UNINUS, the saturation degree value of 0.95 is included in the service level (E) which is an unstable current where the current has faltered. For side barriers for the direction from RSAI to UNINUS has a very high class or a very high side resistance class, while for the direction from UNINUS to RSAI has a low side resistance class. For the average free current speed  LV = 47.85 km / h; HV = 41.76 km/h; MC = 39.15 km/h. While for the existing speed has an average speed MC = 50.42 km / h; LV = 32.85 km/h; HV 2 AS = 36.41 km/h and HV 3 AS = 34.62 km/h. For the longest queue time of 0.00745 hours or 0.4464 minutes.
Sustainable Development of Renewable Energy Potential and Its Impact on Community Life in Indonesia: A Systematic Review Dwijendra, Ngakan Ketut Acwin; Sanjaya, I Putu Ari; Armaeni, Ni Komang; Winastri K, Desak Ayu Krystina
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15745

Abstract

Indonesia is very rich in new and renewable energy potential. Indonesia's population growth continues to increase and in line with technological advances that are developing very rapidly, causing the need for energy to increase. Problems related to resources and energy are still problems that have not found the right solution to overcome them. Society's dependence on fossil energy sources seems to make it difficult for new ideas and innovations for clean and affordable energy to enter people's lives. The purpose of this article is to find out the potential for new energy sources and renewable energy in accordance with the goals of the 2030 SDGs. The method used is a systematic literature review, by searching journal articles on renewable energy and successful case studies using Google search and Artificial Intelligence (AI) application review, while the data analysis technique is in the form of data reduction, data presentation to draw conclusions. The results of the study show that many cases show that if new renewable energy is well developed in Indonesia, this potential will become a very tangible benefit for people's lives. These potentials include the potential for solar power, biomass, and micro-hydro.
Analysis of Factors Affecting Labor Productivity in Fixing and Formwork Work on the Joglo Fly Over Rail Project Azhari, Muhammad Khalid Hasyim; Amar, Tsulis I’qbal Khairul
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15783

Abstract

The study investigates factors influencing worker productivity in construction projects, recognizing the challenge of balancing a sufficient workforce without compromising efficiency. Employing work sampling and regression analysis, eight variables are identified: experience, education, health, family dependents, wages, field conditions, weather, and K3. The results reveal that, collectively, these variables fall below established standards, indicating a lack of significant impact on labor productivity. Notably, experience emerges as the most influential factor, although its significance level remains below the threshold. Despite this, the variable's calculated t value of 1.772 suggests its relative importance compared to others. The study underscores the need for meticulous labor selection, emphasizing experienced individuals to enhance overall productivity. While no single variable surpasses the significance threshold, the findings provide valuable insights for construction project management, urging a focus on experienced workers to improve productivity levels. Ultimately, the study contributes to understanding the nuanced dynamics of worker productivity in construction, urging practitioners to consider experience as a pivotal factor in their labor selection process.
Art and Transport: Background Music at The Train Stations in Java Island, Indonesia Rahmawati, Ainun; Dewanti, Dewanti; Parikesit, Danang; Timms, Paul; Barnard, Yvonne
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15809

Abstract

Nowadays, music plays an essential role in train stations. Many train stations offer music in various forms. This study focuses on the background music, defined as music prepared and recorded in advance by the train station manager and played at certain times with a specific duration in the stations. The songs or musical instruments played in Java Island, Indonesia, are folk songs that reflect the identity of each region. The objectives of the study are to analyse the background music selection in the train station globally, to identify the purpose of background music used in the train stations from the railway company perspective, to identify the criteria and characteristics of folk songs used as background music, and to analyse the passengers’ perspective on background music at the train station. The research utilised a qualitative case study research methodology. The methods used include online research and literature reviews to answer the first objective regarding background music selection at train stations globally. Then in-depth interviews with rail service providers and the rail service users. The conclusions obtained are: 1) the Japan Railway Company create unique melodies for each line and station to help the train passengers remember specific locations and lines and guide the passengers to steps and orderly queues during peak hours; 2) KAI's purpose in playing background music at the station is for additional services for passengers as well as a sign that the train has arrived and to provide a regional identity as one of the local cultures; 3) the percentage of background music is dominated by instrumentals with traditional arrangements; 4) About 80% of the respondents who were interviewed said that the songs played at the station had a place for bonding with the location, others are nostalgic, proud, peaceful and relaxed.
Spatial Quality Concept Through Direction of View Accommodating Work for Home Activities in Official Houses Bodromulatsih, Ratri; Defina, Ima; Cahyadini, Sarah
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15842

Abstract

In the last 20 years, working from home (WFH) has become more common and even more popular due to the outbreak of the infectious disease COVID-19. This condition is a challenge for residences that are not designed for living and working, especially for houses that are not designed for work, such as official residences. Apart from that, there are restrictions on changing the physical structure of the building that residents must comply with. Knowing these conditions, it is necessary to pay attention to the quality of the building so that the building remains able to accommodate these activities. As a method to achieve research objectives, this research uses two strategies, namely qualitative as the dominant method and quantitative as the supporting method. Quantitative data as a grouping of resident data and as a basis for exploring data in the next stage, namely the qualitative stage. Qualitative data was analyzed using thematic analysis, to find themes related to quality spatial conditions to accommodate work activities at home. Based on the three existing unit types, the presence of other individuals constitutes unwanted visual content. In type 4, residents who work in the bedroom do not get the desired view because the distance between the units is too close. So that quality spatial conditions can be realized, it is necessary to pay attention to the following concepts: (1) Space presents the desired visual content (2) Uses furniture that is essential for work (3) Provides a personal touch (4) Windows with features that can regulate visual privacy.
Numerical Analysis of the Response of Existing Tunnel Structures to Crossing Tunnel Construction in Soft Soil Yanreginata, Muhammad Amhar Wajdi; Prakoso, Widjojo Adi
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15858

Abstract

Massive urban planning forces the utilization of underground space, not least in the development of transportation infrastructure. MRT Jakarta has successfully made its line in phase 1 Lebak Bulus - Bundaran HI and now is developing the line which is packaged in phase 2 to the direction of Ancol, this route reaches the south-north part of Jakarta. In recent years, there has also been a plan to add an East-West line which will be packed in phase 3, this does not rule out the possibility of a meeting between the existing tunnel and the undercrossing tunnel. This study discusses the influence of undercrossing on the existing tunnel structures, especially under Jakarta Clay, which is classified as having a thick, soft clay stratum. This research was divided into 2 steps using finite element analysis with Hardening Soil model. The first step is to conduct a back analysis to obtain the actual soil parameter value then proceed with step 2, which is to conduct an undercrossing twin tunnel analysis. Based on the results of the study showed the fittest soil parameters using the correlation E50 = 3500N by the effective soil strength parameters and the undercrossing excavation caused four stages of vertical displacement of the existing tunnel.
Modeling the Implications Green Retrofitting River Conservation was Validated using (SEM) Analysis Arif, Eka Juni; Sinaga, Lastarida; Kristiyanto, Kristiyanto; Barri, Ahmad; Ator, Wyllem Thomas
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15922

Abstract

According to the 2015 United Nations Framework Convention on Climate Change (UNFCCC), reducing CO2 in the atmosphere is essential to reduce related environmental problems, considering the increasing demand for air due to climate change. Carbon capture and sequestration is an attractive method for reducing carbon dioxide (CO2) emissions from the atmosphere. However, in some places, agricultural landscapes face problems due to air resources. Trees play a very important role in the fight against climate change. They pollute the air, stop landslides, absorb CO2 and some air pollutants, and absorb phosphate and nitrate runoff. Ten main elements, ordered from least to most important, were identified using research techniques that combine SEM-PLS to process survey data and find the most influential components. River conservation verification in Envision has the greatest impact. According to this research, the following things influence the implementation of green retrofits on green rivers: energy savings; emission reduction; use of the latest energy; the existence of an environmentally friendly green river program; cost planning and design; project feasibility studies; material costs; and use of the latest technology. It is hoped that the results of this research will increase public awareness and concern regarding the implementation of environmentally friendly green rivers as an effort to make rivers greener and more natural, reduce operational costs, and provide comfort for the community.
Application of the Green Building Concept (BGH) in High-Rise Office Buildings Based on Hybrid Dynamics to Improve Cost Performance Barri, Ahmad
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15941

Abstract

This research aims to determine the application of the green building concept (BGH) in multi-story office buildings based on hybrid dynamics to improve cost performance. The method used in this research is a quantitative method with primary and secondary data types. The sampling technique used purposive sampling with 163 individuals involved in the Ginza Business Loft Jababeka area. The data management and analysis techniques used are outer model analysis (measurement model) and inner model analysis (structural model) using the SmartPLS 3 Multivariate Structural Equation Model (SEM) technique. Partially, the results of this research show that X2.2.21 has a P-Values value of 0.000 for X2.2 has a P-Values value of 0.000 on 0.000, it can be concluded that X3.2.2 has a strong influence on variable X3.2 in the model. The variable X2.3.6 also has a P-value value of 0.000, meaning that X2.3.6 has a significant effect on variable X2. Variable X3.1.6 has a P-value of 0.000 for variable X3, indicating that the auditor quality variable has a significant effect on variable X3. Furthermore, variable Y2.2 has a P-value value of 0.000, indicating that this variable has a significant influence on variable Y2. These results illustrate that variable Y2.2 has a strong influence on variable Y2 in the context of the research model. Overall, the results of the P-Values analysis show that the variables mentioned above have a significant influence on the variables measured.
Analyzing the Impact of the Automation Train Protection Implementation in Indonesia Pangaribuan, Grace; Malkhamah, Siti; Muthohar, Imam
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.15967

Abstract

Indonesian railway industry has grown dramatically in the past five years, with network and track length expected to triple by 2030. This is due to increasing railway demand. The Indonesian National Rail Network has averaged 350 million passengers per year for the past decade. The 2015 high was 450 million, and the 2020 low was 200 million. The Republic of Indonesia improves its infrastructure, especially trains. MRT Jakarta, LRT Jakarta-Bogor-Depok-Bekasi, Jakarta-Bandung high-speed rail, and conventional long-distance train in Sumatera, Makassar to Pare-Pare in Sulawesi Island are among the recent railway projects in Indonesia. In contrast, Indonesian rail safety systems fail to meet rail demand. There is no proper rail safety system exists for the national mainline network. The Indonesian mainline railway uses the Grade of Automation 0, with the train driver as the main controller. This country has several railway accidents, which frequent to cause fatality. Indonesian rail accidents include collisions, derailments, train slips, and natural disasters. Indonesia had 15.62 train-km fatalities per thousand-kilometre railway in 2017. The US had 725.4 railway fatalities per billion km in 2000–2009, whereas the EU had 353.1 in 2006–2009. It is obvious that the rate of train accident in Indonesia is higher compared to other countries. Accordingly, the improvement of rail safety is essential in order to support national mobility. One promising direction to reduce this fatality is through the Automatic Train Protection System. This technology has kind of like several benefits, such as controlling and maintaining the train speed during operation. The most basic version of this system is able to provide audible and visual warnings to train drivers when they approach certain signals. If the driver does not respond to these warnings and the train continues to move in dangerously, the automatic train protection can automatically apply the brakes to stop the train. Installing automatic train protection system is expected to reduce the number of accidents caused by human error and improve the overall performance of the rail network. This study finds that there is significant reduction in the number of rail accidents by implementing the Train Automatic Protection in Indonesian Railways. The benefit is not only reducing the number of accident cost but also the non-monetised aspects.

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