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Calamity: A Journal of Disaster Technology and Engineering
Published by Institute for Advanced Science, Social, and Sustainable Future
ISSN : -     EISSN : 30254140     DOI : -
Core Subject : Science, Engineering,
Aerospace Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering
Calamity: A Journal of Disaster Technology and Engineering focuses on unique research on all facets of natural hazards, such as the prediction of catastrophic events, risk management, and the nature of natural and manmade hazard precursors. The effects on the environment are equally disastrous even if risks might come from a variety of sources and systems, including atmospheric, hydrologic, oceanographic, volcanologic, seismic, and neotectonic. This calls for tight collaboration between many scientific and operational disciplines in order to improve risk reduction. Risk assessment is included in the coverage of hazards in the atmospheric, climatological, oceanographic, storm surge, tsunami, flood, snow, avalanche, landslide, erosion, volcanic, man-made, and technology categories.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 33 Documents
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The impact of climate change on potential rob floods and its effect on regional spatial planning on the Surabaya coast Okvitasari, Astri Rino; Fatoni, Arrizal R.; Bahtiar, Ahmad; Faridatussafura, Nurzaka; Hermanto, Ady; Aulady, M. Ferdaus N.
Calamity: A Journal of Disaster Technology and Engineering Vol. 1 No. 2: January (2024)
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v1i2.2024.320

Abstract

Climate change is a global issue that is of concern to the world. One of the impacts of climate change is sea level rise. Rising sea levels can cause tidal floods, especially in coastal areas. Based on data from the Meteorology, Climatology and Geophysics Agency (BMKG), one evidence of climate change is an increase in sea level. Satellite altimetry measurements show a trend of sea level rise in Indonesia from 1992-2022 averaging around 4 mm/year. Rising sea levels have an impact on increasing the frequency of coastal flooding, retreating coastlines, and the disappearance of national borders. The city of Surabaya is one of the coastal cities in Indonesia which has the potential to experience an increase in the height of tidal floods due to climate change. The potential for tidal floods due to climate change could harm the spatial planning of coastal areas in Surabaya. The results of this research show that the coast of Surabaya has a moderate level of tidal flood vulnerability with an area of 8230.77 ha, a high category with an area of 1739.21 ha, and a very high category with an area of 178.13 ha. The area is dominant from most of the coast of the Semampir subdistrict to Benowo and the border of the Bulak and Mulyorejo subdistricts. Tidal floods can cause the submergence of productive lands, such as settlements, fish farms, and warehouses. This can cause economic and social losses for coastal communities. Therefore, adaptation efforts are needed to reduce the impact of tidal floods due to climate change. These adaptation efforts can be carried out through improving spatial planning and environmental planning for coastal areas.
Risk analysis in concrete structure work using the hiradc method on the Hermina Ciawi Hospital project Wijaya, Rivaldo
Calamity: A Journal of Disaster Technology and Engineering Vol. 1 No. 2: January (2024)
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v1i2.2024.338

Abstract

In the construction projects, a high risk of work accidents was found. Therefore, risk identification is very important to reduce the risk of work accidents afterwards. Risk identification begins with collecting research variables. These variables are then distributed to obtain probability and impact values ​​from respondents. The method used in this research is HIRADC (Hazard Identification Risk Assessment & Determining Control) which is assessed based on its frequency (probability) and the impact of the hazard (consequence/severity). This research aims to determine potential dangers and high-level risks. as well as risk control measures and the control of the risk. The research results show that there are 39 potential hazards with 10 high risks with determining control as per hierarchy for each hazard.
Indonesia's economic and environmental resilience in the face of climate change: Analysis and implementation strategies Wurarah, Rully Novie
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 1: (July) 2024
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i1.2024.940

Abstract

Backgorund: Climate change is a significant threat to Indonesia, an archipelago that is vulnerable to the negative impacts of this phenomenon. This study aims to identify the effects of climate change in Indonesia and evaluate mitigation and adaptation strategies needed to improve economic and environmental resilience. Based on climate change projections, increases in surface temperature, changes in rainfall patterns, sea level rise, and changes in water salinity have negative impacts on various sectors such as agriculture, fisheries, infrastructure, and public health. Method: The research method includes secondary data analysis from various official sources and a study of relevant literature, with an analytical descriptive approach to identify critical challenges and necessary strategies. Findings: The results show that limited fiscal space and the need for budgetary reform are significant challenges that need to be addressed through the introduction of a carbon tax, budgetary incentives for green technologies, and the removal of fossil fuel subsidies. In addition, mobilization of non-budget funding sources is needed to support green projects, with strategies such as the development of public-private partnerships, access to international funds, and technical capacity building. Conclusion: In conclusion, implementation of the recommended mitigation and adaptation strategies can increase Indonesia's resilience to climate change, reduce its risks and negative impacts, and ensure the sustainability of economic and social development. Novelty/Originality of this study: This research provides practical guidance for policymakers to develop effective strategies to deal with climate change
Enhancing fire disaster management: Innovative approaches using physical peatland monitoring data Prayoga, M. Bayu Rizky; Karuniasa, Mahawan; Frimawaty, Evi
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 1: (July) 2024
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i1.2024.1030

Abstract

Background: In Indonesia, the persistent occurrence of forest and land fires highlights the critical importance of early detection in determining the success of mitigation efforts. Method: This study explores several key aspects related to peatland wetness and its impact on fire prevention. Firstly, it examines the relationship between rainfall and the humidity and temperature of peatlands. Secondly, the study investigates peatland wetness as an indicator of hotspot emergence. Thirdly, the study evaluates stakeholder perceptions regarding the use of peat wetness monitoring in determining the emergency status of forest and land fire disasters. Findings: The study's results indicate that rainfall significantly influences peatland humidity, which in turn reflects the level of peat humidity and temperature. It was also found that peatlands with a Dry-Moderate humidity category can be a reliable indicator of the emergence of fire spots. The consensus among stakeholders is that monitoring peatland humidity is very important for decision-making related to emergency status. Finally, this study proposes a forest and land fire mitigation concept based on peatland humidity. Conclusion: This approach aims to reduce the risk of such fires by utilizing monitoring results to enhance preparedness, taking into consideration the current state of peatland wetness. Overall, this research underscores the importance of integrating peatland wetness monitoring into forest and land fire mitigation strategies to improve early detection and reduce the risk of fires.  Novelty/Originality of this study: A study of forest fires in Indonesia links peatland wetness to fire hotspots, providing a reliable indicator for early fire detection. This is an innovative approach to forest fire prevention.
Revitalizing flood-prone areas through socio-environmental strategies: A qualitative approach to urban flood management Pamungkas, Paminto Jati; Kristianto, Ary; Prianto, Muhammad Dwi; Rahman, Robby Zidni; Firmansyah, Risky Teguh
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1025

Abstract

Background: The Ciliwung River is one of the most important rivers in Tatar Pasundan, especially because it passes through the capital city of DKI Jakarta and often causes annual floods in its downstream areas. The length of this river reaches almost 120 km and passes through several areas, including Bogor Regency, Bogor City, Depok City, and DKI Jakarta Province. High rainfall is one of the factors that often causes flooding in areas around rivers. Methods: This research aims to analyze the management of flood disasters that occur due to the overflow of the Ciliwung River. The analysis carried out by the author used qualitative methods with a literature review. Findings: The results obtained from the literature review of several journals, namely flood management on the Ciliwung River, cannot still be said to be completely successful. This is because several factors trigger floods that have not yet been resolved and appropriate solutions are needed for flood-prone areas so that they can be revitalized so that they can provide direct benefits to the community.  Conclusion: The study highlights the persistent challenges in managing flood disasters caused by the overflow of the Ciliwung River. Despite various efforts, flood management in the Ciliwung River Basin has not been entirely successful. Several unresolved factors continue to trigger flooding, indicating the need for more effective and sustainable solutions. The revitalization of flood-prone areas is essential to mitigate the impact and provide direct benefits to the affected communities. Novelty/Originality of the Article: Unlike previous studies that focus on specific technical solutions, this research highlights the need for holistic revitalization of flood-prone areas, considering socio-environmental factors to enhance community resilience and sustainable flood mitigation strategies.
Spatial-temporal analysis of built-up land development in landslide-prone areas: Disaster risk assessment Rakuasa, Heinrich
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1179

Abstract

Background: This study aims to analyze the development of built-up land in landslide-prone areas in Ambon City from 2014 to 2024, considering the increased disaster risk due to unplanned urbanization. Methods: The methods used include spatial temporal analysis utilizing Landsat 7 and Landsat 8 satellite imagery data, as well as landslide risk maps from the National Disaster Management Agency (BNPB). Findings: The results showed that built-up land in high-risk areas increased sharply, from 429.91 hectares in 2014 to 951.65 hectares in 2024, potentially increasing vulnerability to landslides. Conclusion: The study recommends the need for stricter spatial policies and better risk management to control development in landslide-prone areas. In conclusion, wise management and integration of landslide risk maps in urban planning are essential to mitigate the negative impacts of land use change and protect communities from disasters. Novelty/Originality of this article: This study offers a unique contribution by combining spatial-temporal analysis using Landsat satellite imagery with landslide risk maps to assess the impact of unplanned urbanization on landslide-prone areas, providing new insights into the relationship between urban development and disaster risk in Ambon City.
The impact of overtime duration variations on labor productivity in apartment construction projects: A study on engineering and disaster management in the construction sector Mirnayani; Paradiba, Hafisa
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1321

Abstract

Background: Construction projects, especially apartment buildings, often face challenges such as resource limitations, unpredictable weather, and schedule delays, which lead to increased costs and reduced productivity. Overtime is a commonly adopted strategy to address these issues; however, its effect on labor productivity is complex. Methods: This study investigates the impact of varying overtime durations (1, 2, and 3 hours) on labor productivity and Labour Utilization Rate (LUR) for three critical tasks: rebar installation, concrete casting, and formwork installation in the Sky House Alam Sutera project. The Productivity Rating method and LUR analysis were used to evaluate normal productivity and productivity during overtime, with data collected through direct observation, interviews, and project documentation analysis. Findings: The results reveal that while overtime increases daily output, it also reduces productivity per hour as work hours extend. Rebar installation exhibited the most significant decline in productivity, from 493.529 kg/hour  during regular hours to 345.470 kg/hour with 3 hours of overtime. Correspondingly, the LUR improved with overtime, with rebar installation increasing from 68% under normal conditions to 72% with 3 hours of overtime. Similarly, the cost of labor increased by 9%–23% due to overtime, depending on the task and duration. Conclusion: The findings suggest that the optimal overtime duration is 1 hour, balancing productivity gains, cost efficiency, and LUR improvements, while prolonged overtime may lead to diminishing returns due to worker fatigue. This study provides insights into managing overtime in construction projects, emphasizing the importance of controlling overtime durations to achieve project objectives efficiently. Novelty/Originality of this article: This study offers an original perspective by examining the impact of varying overtime durations on both labor productivity and Labor Utilization Rate (LUR) in the context of construction projects, using a detailed analysis of three critical tasks.
Landslide characteristics triggering evacuations: A comparative study of community responses and disaster management approaches Indratmoko, Satria; Koestoer, Raldi Hendro
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1437

Abstract

Background: Landslides are one of the most dangerous geological disasters in the world due to the movement of earth material caused by gravity. Landslides also threaten the environment, property, and human life risks in high-risk areas. This study compares how landslide characteristics impact evacuation planning in Indonesia and various other countries. Methods: Utilizing a Systematic Literature Review (SLR) of studies published between 2019 and 2024, this research examines landslide characteristics that prompt community evacuation responses, such as landslide triggers, physical conditions, and the number of people affected. Findings: Findings reveal that while Indonesia and other high-risk countries face substantial landslide risks, challenges remain in enhancing disaster preparedness, including evacuation planning to minimize casualties. Physical characteristics and the preparedness of early warning systems are crucial in shaping community responses to landslides. This case study illustrates how a combination of steep slopes over 40 degrees, heavy rainfall intensity of more than 200 mm in one week, weak soil textures, and dense vegetation can trigger devastating landslides. However, landslides triggered by seismic activity result in significantly higher fatalities, and special attention is needed in areas prone to landslides and earthquakes, as happened in Nepal (highland and mountainous climate). In China (subtropic region), landslides are primarily triggered by moisture-saturated soils, which are vulnerable to ground motion, particularly during prolonged rainfall. In Indonesia as tropical region, landslides triggering evacuation predominantly occur in areas with highly erodible and unstable soils, exacerbated by high rainfall. Conclusion: Evacuation planning must be more adaptive and supported by GIS technology to identify high-risk areas. Globally, evacuation success relies on infrastructure, community awareness, and disaster preparedness. Novelty/Originality of thid article: This study highlights the importance of crisis management strategies tailored to the specific landslide characteristics of each region, as well as the crucial role of community involvement and technology in ensuring effective evacuations.
Analysis of implementation factors in the application of building information modeling (BIM) in construction projects: Enhancing disaster preparedness Lathifia Qolbina; Beatrix, Michella
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1442

Abstract

Background: Building Information Modeling (BIM) technology is game-changing in the AEC industry. BIM can significantly improve team coordination, construction productivity, project performance, and profits. The conventional construction process, where there are often conflicts between stakeholders regarding the workflow in a job, will change with the application of BIM in construction projects. In the construction sector in Indonesia, the knowledge and experience of construction service provider companies (consultants and contractors) in Indonesia needs to be studied and documented academically to enrich the body of knowledge of BIM implementation. Methods: The data used in this study are primary data obtained through questionnaires.  The data used in this study are quantitative data processed using the Partial Least Square (PLS) method with SmartPLS 4.0 software. Conclusion: From the results of this study, it is concluded that the implementation factor has a significant influence on Building Information Modeling (BIM). Based on the outer model analysis of the SmartPLS 4.0 software, it is found that the greatest influence of the implementation factor relationship on Building Information Modeling (BIM) is 0.757 or it can be said that it is 75.7%. Novelty/Originality of this article: This study provides a unique contribution by focusing on the implementation of Building Information Modeling (BIM) in the Indonesian construction sector, particularly through the lens of construction service providers' knowledge and experience, using a robust quantitative approach with SmartPLS 4.0 to analyze the influence of implementation factors on BIM adoption.
Analysis of the impact of forest fires: Pre-wedding incident of Mount Bromo and its disaster risk Nugraha, Mayabella Puspita
Calamity: A Journal of Disaster Technology and Engineering Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/calamity.v2i2.2025.1508

Abstract

Background: Forests play a crucial role in sustaining the environment, economy, and society by acting as carbon sinks that help mitigate climate change and maintain ecosystem balance. However, forest fires remain a growing global concern, including Indonesia. One significant fire occurred in Bromo Tengger Semeru National Park (TNBTS) in 2023, sparked by human negligence during a pre-wedding photoshoot. The fire damaged 1,487 hectares of land and threatened local biodiversity and ecosystems. TNBTS is home to over 1,000 plant species and holds cultural significance for the Tengger Community, who depend on its resources for their livelihoods. The research examines the environmental, economic, and social impacts of fire, using a quantitative research approach. Mentods: The methodology uses quantitative analysis using Landsat 8 imagery to assess fire severity. The Delta Normalized Burn Ratio (dNBR) is used to assess fire damage, while vegetation density is analyzed using the Normalized Difference Vegetation Index (NDVI) to ensure data reliability. Findings: The fire caused significant environmental damage. Economically, the tourism sector was severely affected, with the park’s closure for 13 days leading to an 80% drop in hotel occupancy, resulting in an estimated loss of IDR 89.76 billion. Socially, the Tengger people suffered, as the fire damaged sacred sites and disrupted their cultural practices. Also, it increases the stress and anxiety of society that depends on tourism and agriculture. Public concern about the incident underscored the importance of responsible behavior in national parks, this can be seen by Google Trend. Conclusion: Although signs of recovery are evident, the long-term ecological and economic impacts require continued assessment and mitigation efforts to ensure the sustainable future of TNBTS. Novelty/Originality of this article: This article offers a novel analysis of the Bromo Tengger Semeru National Park fire by integrating remote sensing data with environmental, economic, and social impacts, including the unique use of Google Trends to measure public concern.

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