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Electricity is a vital aspect of modern infrastructure that supports various human activities. Therefore, the increasing need for electrical energy requires good planning to ensure the availability of electrical energy in the future. The transmission system, especially the Medium Voltage Cable Line (MVCL), plays an important role in distributing electrical energy from generators to consumers. However, MVCL construction involves high-risk work, so it requires special attention to occupational health and safety (OHS). This research uses the HIRARC (Hazard Identification, Risk Assessment, and Risk Control) method to identify and control risks in MVCL construction projects. It is hoped that the results of this research can provide recommendations for improving occupational safety and health as well as efficiency in future MVCL construction projects.

Occupational safety encompasses a range of practices adopted to protect the health and safety of employees. In the construction and industrial sectors, employees may be exposed to various risks such as falls, impacts, temperature changes and the effects of chemical substances. For this reason, personal protective equipment (PPE) is an important element for protecting employees against risks. The effective use of equipment such as a hardhat, mask, and vest makes an important contribution to the prevention of occupational accidents and health problems by ensuring the safety of employees. This study conducted three separate experiments investigating the potential of deep learning methods on occupational safety. In the first experiment, the YOLOv5n and YOLOv8n models were trained on the same data set with ten classes, and their performance was compared. In the second experiment, the YOLOv8n model was trained on a 2-class dataset to examine how the number of classes affected the model's performance. As a result of the experiments, it was seen that it emphasized the potential of deep learning and object detection methods to quickly and effectively monitor and evaluate the use of personal protective equipment.

This journal discusses the application of the Hazard Identification, Risk Assessment, and Determining Control (HIRADC) method in the context of Occupational Safety and Health (K3). This research aims to identify potential hazards in the work environment, evaluate related risks, and determine effective control measures. The HIRADC method is used as a framework for developing holistic and evidence-based K3 action plans. The research results show that the application of the HIRADC method can increase understanding of risks in the workplace and provide a strong basis for proactive K3 management. This study contributes to the development of K3 strategies that are more efficient and oriented towards preventing work accidents in building construction work.    

Awareness of potential hazards, risks of accidents, and the need for preventive measures is a must to create a safe and healthy working environment for all workers.  The choice to implement a hydrant system is seen as an effective preventive measure in addressing potential fire risks, which are a major threat to the warehouse environment.  Thus, this research planning has not only a purely academic purpose, but also seeks to make practical contributions to strengthening the application of the Principles of Occupational Safety and Health in the industrial sector.  The planning research was done by jumping directly into the field and the data source was obtained from interviews with local authorities.  This research describes the design of the hydrant system in order to be able and meet the safety standards set by the NPFA. The results of the conservation of the warehouse of PT. Putraduta Buanasentosa then the author was able to describe the building based on the construction of the building. The warehouse PT. Putraduta Buanasentoza requires hydrant boxes of 6 pieces. The water requirements for the fire protection system based on NFPA have been calculated by considering the building size as well as the risk of fire with hydrant 6 pieces and 1 hydrant pillar, requires 4800 liters of water/minute and to extinguish the fire in the event of a fire requires a time of 15 minutes where the required water requirements in 15 minutes is 72.000 litres of water.

Computer vision technology is used to improve work safety in the construction industry. The key in this project is the utilization of the YOLO method on the Roboflow platform. In addition to the Convolutional Neural Networks (CNN) algorithm, YOLO efficiently divides the image into a grid and classifies the objects in the grid by bounding box and confidence score. With the integration of YOLO, this project can achieve accurate and fast PPE detection. This project uses the YOLO method to detect head and body parts from input images. The detected body parts are then cropped and processed using the CNN method for classification. This project will also implement computer vision algorithms, including Deep Learning methods that currently have the most significant results in image recognition is CNN method, to automatically detect and monitor the use of PPE. This model achieves mAP 64.1%, Precision 73.2%, and Recall 60.2%. The Streamlit framework was used for deployment, creating a web application for PPE compliance tracking. This project, ''Health and Safety PPE Compliance Tracking'', aims to improve work safety in the construction industry. This project uses Computer Vision technology to detect, monitor, and ensure worker compliance with the use of appropriate PPE. The suggestion is to conduct further trials using other datasets in the form of photos or videos that can be done in real-time by ensuring that the colors of hats and vests do not vary too much to detect the conformity of labeling with PPE use.

Fire is a threat to human safety, property and the environment. With the increasingly rapid development and progress of development, the risk of fires is increasing. Shophouses or shophouses are places that are prone to fires. The increasingly dense population and the construction of office buildings have created a vulnerability in the event of a fire. Preventive efforts must be carried out by each individual and work unit, so that casualties from fire incidents can be minimized. Fires can cause moral, material and even human life losses. Fires that hit public facilities, of course, cause losses to many people. Shophouse fires often occur suddenly due to short circuits, gas explosions or due to sparks from cigarettes/matches. The research carried out this time focuses on creating a fire detection system using ESP32 and Arduino. The system uses three sensors, namely a temperature sensor, a gas sensor and a fire sensor. Temperature sensors are useful for monitoring room temperature conditions, fire sensors are useful for detecting the presence of fire in a fire disaster and gas sensors are useful for detecting the presence of smoke that appears as a result of a fire disaster. This system uses an ESP32 microcontroller and uses the Arduino IDE application. The results of the fire detection system are expected to reduce the occurrence of fire accidents and also losses caused by fire accidents.

XYZ is a multi-disciplinary company operating in the fields of mining contracts, engineering, procurement and construction as well as oil and gas services. This business entity, which has been established since 1972, has a strong commitment to Occupational Safety and Health (K3) which has become a culture in every element of the company. Basically, K3 is an effort to prevent/avoid/reduce accidents by stopping/removing/eliminating risks (risks). K3 is one of the requirements for increasing employee work productivity, this is closely related to achieving work or production targets. This research was conducted at the company PT. XYZ in the Balikpapan area. The aim of this research is to measure the level of employee concern for K3, with the efforts that the company has made through the rewards system, digitalization and audio-visual campaign methods. The research population is employees of PT. XYZ in the Balikpapan area. Sampling was carried out using a two-stage multi-stage cluster random sampling technique. The first stage is separated based on department cluster; Asset Management, SHE, SCM, HCBS, and Finance. The second stage is PT employees. XYZ is separated based on work environment stratification; office and field. Respondent data was analyzed with SEM-PLS using Smart PLS 3.0 software. The model developed illustrates that the rewards system, digitalization and audio-visual campaigns have a positive influence on worker safety motivation and indirectly influence worker safety behavior through worker safety motivation which acts as a mediating variable. Meanwhile, work safety motivation has a positive effect on work safety behavior.    

Project success is the ultimate goal of every project. The difference in the success factors (Buddhi Dharma Building construction project) projects are due to each project having different influencing factors. Therefore, each party involved must have a certain strategy for the success of the project, namely knowing the most influential factors on the success (success) of the construction implementation. This researcher aims to identify the factors that support the success (Buddhi Dharma Building Construction project) Construction project in the southern Banten city of Tangerang. The research method used is descriptive analysis using a questionnaire with data on construction projects that are currently or have been done. Or the respondents are the main director, project manager, site manager, implementation, technical staff, quantity and quality control. From the returning quisoner, the data was tested using SPSS. There are 30 questionnaires distributed. The response rate is 100%. From the research data there are 4 factors with sub factors / variables. These 4 factors are project management factors, cost, time, quality of work, work safety. The results of the validation test, obtained 4 factors and 7 valid variables. The results of the reliability test, all valid factors are also reliable. From data analysis with SPSS version, 2.4, the most dominant factors on construction costs are: for project management, the plans and schedules used, affecting of project management factors, the most dominant sub-factor is the implementation schedule is not in accordance with schedule, which is  of the time, the most dominant sub-factor is the project bidding method, which is 4.7. Equipment factor, the most dominant sub-factor is the monitoring and planning capacity used, which is  The results of this researcher are later expected to be taken into consideration for all parties involved in the implementation of construction projects in order to achieve project success.

The accident rate of building construction projects in Indonesia reached 9 cases out of a total of 48 cases (20%) from 2017 to 2022. Out of these, 43 cases were attributed to technical negligence, 4 cases were due to natural factors, and 1 case is currently under investigation. Given the issues related to construction accidents, this research aims to identify construction safety variables that are likely to occur and subsequently conduct a risk level analysis. The research methodology employed is a case study, followed by a risk analysis based on the Ministry of Public Works and Housing Regulation No. 10 of 2021 regarding the Guidelines for Construction Safety Management Systems. The research findings indicate that out of 34 construction safety risk variables, there were 2 hazards (5.88%) classified as high risk (B), 22 hazards (64.71%) classified as medium risk (S), and 10 hazards (29.41%) classified as low risk (K).

Temporary bulding or temporary buildings are places that have high urgency in a construction project where there are company facilities consisting of employees, buildings and company administration. This research is qualitative in nature, based on safety representative as the primary research data prior to conducting the Fire Risk Assessment which focuses on all rooms in the temporary buildings of construction service companies. This research was conducted with the aim of conducting a fire risk assessment in accordance with NFPA 551 of 2019 to determine the value of fire risk and Fire Extinguishers planning will be carried out based on Permenakertrans No. 04 of 1980. The results of the risk assessment carried out showed that the fire rate in 12 rooms in the temporary building had a moderate risk level and the other 2 rooms had a low risk level. For the application of Fire Extinguishers to the entire temporary building area, 5 Fire Extinguishers are needed with 4 Fire Extinguishers of the Dry Chemical Powder type and 1 Carbon Dioxide (CO2)

Tunneling construction is important to get more attention because considering the magnitude of the risks from this work such as the instability of the carrying capacity of the soil around the construction which can cause collapse during dredging or installation of tunneling walls, or and other problems such as lack of oxygen intake for workers who are carrying out tunneling excavations , the presence of toxic and flammable gases, or falling objects that can result in minor accidents or even death. The purpose of this study is to make a visual assessment through certain media (photos/videos) that can be done quickly regarding the existing conditions of the environment/work, whether the work carried out meets work safety standards, work safety regulations and so on. Rapid assessment can assume that what happened in the field at that time was a reflection of previous work. From the results of the study there were 58 variables which were divided into 4 main variables which were assessed based on the WBS and 26 photos of the environment of the Manikin Dam Tunneling development project taken from several sides. Calculations were made using the results of data from 6 informants, resulting in a P(H | Ecomb) value of 0.932 or a probability of 93.2%, which means that the tunnel work according to the 6 informants was carried out safely. The final value obtained from the analysis is almost close to 1 and all the results of the analysis from the 6 informants are more than 67%.

The purpose of this study is to analyze the safety operational process in fiberglass shipbuilding, identify the types of risk causes that hinder the construction of fiberglass boats and propose recommended actions needed to overcome the risks in CV ERA FIBERBOAT by using theoretical research methods. Identification of risks in the process of building new ships, namely employees, materials, work equipment, payment of construction costs, working drawings have revisions. Determining the risk rating of the new ship building process: very high; inappropriate equipment, height; late payment / paying, medium; working drawings have revisions, low; materials arrive late, very low; employees procrastinate. Mitigating risks in the process of building new ships: employees delay work with mitigation, namely the director of the company provides the opportunity for employees to rest so that employees do not get sick, materials arriving late are mitigated by means of shipyard companies providing an easy-to-find address point so that the sender of materials does not having difficulty finding the address of the shipyard, working drawings have revisions that can be mitigated by means the company must always make an existence to the customer in every work process so that there is no miscommunication

Explanation of the Convention On Nuclear Safety 1994 Article 16 Number 1, 2 and 3 that States that have or will build Nuclear Power Plants (NPPs) in their territory must take appropriate measures related to facilities, security, emergency plans carried out in the event of an emergency in the vicinity of the NPP. Construction of Fukushima NPP The existing nuclear reactor at the nuclear plant was built with insufficient power to withstand the Earthquake and Tsunami that occurred in Japan on March 11, 2011 causing explosions and leaks in 4 nuclear reactors. Japan announced that tanks used to hold waste from leaking nuclear reactors could no longer hold it, so the waste had to be dumped into the sea. The main problem in this study is about the regulation of International Law violated by Japan based on its decision to dump nuclear waste into the Sea, and how the impact will be on the environment. The type of research used in this study is normative legal research or can also be called doctrinal legal research. Normative legal research is literature law research. The action that will be taken by Japan who want to dispose of nuclear waste that they have stored for years due to the Earthquake and Tsunami event has received a lot of resistance from various elements. Especially from the Japanese people themselves to protests from neighboring countries who are afraid that they will also be affected by the waste if it is thrown into the sea. It is hoped that Japan can take appropriate action before doing so because it will not only harm its country but also harm other countries that are disappointed with the actions that Japan will take.

PAL Indonesia is one of the construction companies in the maritime industry that focuses on producing above and below the surface ships which the Indonesian government highly relies on, therefore the safety system there is very strict, including safety lighting. With good lighting, objects can be seen clearly, so that the operation of production equipment and work in the workshop is optimal. However, the company PT. PAL Indonesia has a problem, namely in the warship production workshop, workers often complain because the lighting in the workshop is not bright enough, which causes workers to experience red, watery and sore eyes. Therefore, researchers are interested in analyzing whether the existing lighting standard is in accordance with SNI 03-6197-2000, namely 350lux. From the research that has been done, it is found that the PT PAL workshop with an area of 2700m2 has an average light intensity measurement of 82.22lux, so re-planning is needed to produce a light intensity that is in accordance with the standards. Based on the results of calculations according to standards, 42 light points are obtained with an average lighting of 354 lux which is simulated using the dialux application. The addition of these light points had an impact on increasing electricity bill rates, which were initially IDR 624,575.34 per month to IDR 2,186,013.69 per month.

Occupational Safety and Health (K3) is a very important program to be implemented by companies, especially companies engaged in construction. The purpose of this study is to investigate the occurrence of potential hazards of work accidents in natural gas pipeline installation projects in Mega Mall Batam. The method used in this research is survey distribution and project observation. The research findings state that there were incidents of work accidents in the natural gas pipeline installation project in Mega Mall Batam, namely workers who were hit by grinding stone splashes and workers who were crushed by one of the materials that fell from above the project. The implication of the research is that the company continues to improve the quality of K3 within PT. Multi Sinar Gemilang to reduce work accidents.

Basically the housing construction process is an activity that contains many elements of danger. Occupational safety and health (K3) knowledge is important for construction workers to avoid work accidents caused by human and equipment negligence. The result of this community service activity is that after participating in socialization that has been carried out by the community, in this case the construction workers in the construction project for the Kailila Urban Houses housing development which is located at Jalan Kesejahteraan Sosial No.6 Ngestiharjo Village, Kasihan District, Bantul Regency, their knowledge has increased mainly regarding regulations law on occupational safety and health (K3). The implementation method in this community service activity uses the conversation method regarding occupational safety and health (K3).

PT Prambanan Dwipaka continues to invest a lot of time and capital into its workforce, believing that employees are the Company's greatest asset. Intensive job training, safety induction programs, introduction to occupational safety and health, and additional facilities contribute to employee welfare, which in turn translates into good productivity and quality control. The construction sector has a strategic role in driving Indonesia's development. PT. Prambanan Dwipaka has been trusted by the Government of Indonesia to work on major projects, contributing to national growth and infrastructure. PT Prambanan Dwipaka is also known for the quality of its products, both in the government and private sectors. PT Prambanan Dwipaka is committed to creating a work environment that is safe and free from work accidents and environmental pollution, for this reason work safety is a top priority for the company.