Temporary Facilities Research Articles

Evaluating the Performance and Waste Reduction Strategies of Temporary Waste Disposal Site 3R Facilities in Sukoharjo: A Case Study of Anugrah Palur

Abstract In 2023, the Temporary Waste Disposal Site 3R facilities in Sukoharjo have shown varied performance, with 4 out of the 12 facilities operating at optimal levels. Among these, Temporary Waste Disposal Site 3R Anugrah Palur stands out as one of the facilities functioning efficiently. This research aims to investigate the waste management mechanisms and strategies for waste reduction implemented at Temporary Waste Disposal Site 3R Anugrah Palur. To achieve this, a mixed-methods approach was employed, encompassing load count analysis, as well as observations and interviews with key stakeholders. The findings of the study revealed that over a span of eight days, Temporary Waste Disposal Site 3R recorded an average daily waste generation of 724.76 kg. This equates to an average household waste production rate of 2.07 kg per family per day, or 0.69 kg per individual. The facility demonstrated a high recovery factor of 89.11%, successfully managing to process and reduce 645.86 kg of waste each day. These results highlight the effectiveness of the waste management practices at Temporary Waste Disposal Site 3R Anugrah Palur and provide valuable insights into efficient waste reduction strategies that can be applied in similar contexts.

The Waste Management System in the Parking and Traders Arrangement in the Borobudur Temple Area, Central Java, Indonesia

The Indonesian government continues to accelerate the resolution of all problems related to the planning, infrastructure development, and arrangement of tourist visits, including the arrangement of parking spaces and commercial areas in the Borobudur temple area. The purpose of this study is to develop a waste management system in the parking and commercial areas of Kujon as an alternative to structuring the Borobudur temple area. The research method is a descriptive-qualitative observational approach. Surface water and groundwater examinations are carried out in laboratories and compared with quality criteria determined by the Indonesian government. Toxic and hazardous waste is stored in temporary facilities until it is collected by a company licensed by the Indonesian environmental ministry. The Shannon-Wiener Plankton and Benthos Diversity Index measures the diversity of organisms in a community. The study’s findings highlight the need to establish a waste processing facility based on the reduction, reuse, and recycling principles. Waste will be collected at a certain site and stored temporarily in line with the technical instructions for the Minister of Environment and Forestry’s Regulation. The findings of surface water and groundwater studies demonstrate that all measured parameters continue to meet the Indonesian government’s quality thresholds. Plankton Bioindicator Measurements: Plankton diversity index values range from 1.040 to 1.943, indicating moderate pollution, while benthos values range from 0.811 to 0.918, indicating weakly to moderately contaminated conditions. Sustainable environmental management is critical and should serve as a baseline for environmental quality in the activity area.

Optimization of liquefaction cycles applied to CO2 coming from onshore pipeline to offshore ship transportation

In the field of the CO2 transportation for the Carbon Capture, Utilization and Storage (CCUS) process chain, several analyses show that, for a large-scale CO2 transportation, pipeline transportation is the preferred method on land due to its lower cost. Barges also present a feasible alternative if the capture site is near a waterway. Maritime transport becomes more advantageous than pipelines, particularly over long distances and across ocean. Despite the need to liquefy CO2 and to add temporary storage facilities for loading and unloading onto ships, beyond a certain distance at fixed CO2 transported and plant life, ship transport optimal at pressures of 7 or 15 bar depending on the type of vessel. Impurities in CO2, arising from various industrial processes and variable performances of capture technologies, increase energy consumption during compression and could cause corrosion risks. Specifications for CO2 ship transport limit the concentration of certain impurities with strict thresholds. Methods for purifying CO2, such as the two-flash system and stripping column, have been proposed to meet these specifications. The studied CO2 liquefaction methods show that hybrid cycles, combining open cycle with Joule-Thompson expansion and closed cycle with cooling machine offer reduced energy consumption and improved CO2 recovery compared to open or closed cycles. In the presence of the maximum threshold of impurities in the pipeline, energy consumption can nearly double from 21.8 kWh/tCO2 to 40.9 kWh/tCO2, with the highest recovery rising 98.1 %. This research underscores the importance of optimizing CO2 transport strategies to facilitate the deployment of CCUS technologies.

A Hybrid Framework for Multi-Objective Construction Site Layout Optimization

Effective Construction Site Layout Planning (CSLP) ensures the organized placement and sizing of temporary facilities, enhancing workflow and logistical efficiency. Poorly planned layouts, however, can increase material handling times, create bottlenecks, and reduce productivity, ultimately leading to higher costs. The main objective of this study is to introduce a BIM-based hybrid framework for CSLP that integrates Systematic Layout Planning (SLP) with a Genetic Algorithm (GA), developed through a Design Science Research approach. This Construction Site Optimization Framework (CSOF) addresses CSLP as a multi-objective optimization problem, prioritizing efficient positioning of facilities while accounting for workflow intensity, safety, and manager preferences. The framework’s continuous-space modeling supports a realistic approach, moving beyond fixed-location models. Exploratory case studies demonstrated CSOF’s effectiveness, achieving 30.79% to 40.98% reductions in non-value-adding travel distances and adaptability across varied site conditions. In this way, this research provides a decision-support tool that balances automation with decision-maker input, enhancing layout efficiency and operational flexibility in construction site management.

Post occupancy evaluation of the relocatable modular construction method for temporary educational facilities

PurposeThis study aims to evaluate user satisfaction and perceptions of the relocatable modular school (RMS) system in South Korea. It seeks to identify key factors for improvement to enhance the performance of this innovative construction method, particularly in the temporary educational sector.Design/methodology/approachA comprehensive post occupancy evaluation (POE) was conducted, considering functional spaces, aesthetics, indoor environmental quality and technical aspects. This study also includes a comparative analysis with conventional school buildings to provide insights into the efficiency and potential of RMS.FindingsRelocatable modular schools can achieve the equivalent quality of building performance and user satisfaction as those built using traditional construction methods. The satisfaction performance of both methods falls within the “satisfied” level, with mean scores ranging from 3.35 to 3.90. Notably, when compared to ES, RMS exhibits a marginally lower satisfaction level in functional performance but a higher satisfaction level in the areas of aesthetics, IEQ and technical performance. Key factors identified for enhancement include optimizing classroom shape, balancing the window-to-wall ratio, enhancing natural ventilation and addressing floor noise and vibration concerns.Originality/valueThis research is pioneering in evaluating user satisfaction and perceptions of RMS in South Korea, a relatively unexplored area. By taking a holistic approach and incorporating comparative analysis with traditional school buildings, the study provides valuable insights into the practical application and potential of modular construction in educational facilities. The results contribute significantly to the advancement of high-performance modular educational buildings, informing practitioners and stakeholders of user demands and guiding future developments in the field.

Navigating Planning Crises: Karachi’s Response to COVID-19

The COVID-19 pandemic has invariably highlighted the critical role of spatial planning in managing public health emergencies, particularly with the need for social distancing. Historically, effective spatial planning has been essential for governments in navigating crises such as floods and earthquakes, employing strategies like designating containment zones, repurposing infrastructure, and constructing temporary facilities. The research focuses on Karachi’s response to the pandemic. It examines how the city’s spatial planning strategies were adapted to meet the challenges of its dense urban environment and socio-economic diversity. As Pakistan’s largest city and economic hub, Karachi confronted significant challenges in balancing public health measures with financial activities. The study investigates how state institutions implemented awareness campaigns and emergency spatial planning, including the creation of quarantine centers, isolation zones, inoculation centers, and modifications to public spaces. Similar to other mega-cities, Karachi is vulnerable to natural disasters and emergencies, as it balances a range of issues that require effective spatial and urban planning. The city’s response to COVID-19 reflects broader trends in emergency planning, highlighting its approach to managing crises through strategic interventions. The study aims to uncover the complex relationship between spatial planning and crisis management by illustrating response timelines, temporary structures taxonomy, and infographics. It offers insights into how cities can better prepare for and respond to future crises. It emphasizes the importance of restructuring governance and adaptive and context-specific planning in urban health management.

A two‐stage adaptive robust model for designing a reliable blood supply chain network with disruption considerations in disaster situations

AbstractWe consider multi‐period blood supply chain network design in disaster situations that involve blood donor groups, permanent and temporary blood collection facilities, blood banks, and hospitals. We use a discrete scenario set to model the uncertain blood supply and demand, and the unforeseeable disruptions in permanent blood collection facilities, blood banks, and road links arising from a disaster, where instead of complete failure, disrupted permanent blood collection facilities and blood blanks may only lose part of their capacities. To design a reliable blood supply network to mitigate the possible disruptions, we present a two‐stage adaptive robust model that integrates the location, inventory, and allocation decisions incorporating a blood sharing strategy, where blood can be delivered from a disrupted/non‐disrupted blood bank to disrupted blood banks to enhance the flexibility of the relief network. For this novel problem, we devise an exact algorithm that integrates column‐and‐constraint generation and Benders decomposition and introduce several non‐trivial acceleration techniques to speed up the solution generation process. We conduct extensive numerical studies on random data sets to evaluate the algorithmic performance. We also conduct a case study in Tehran to demonstrate its real‐life applicability and examine the impacts of key model parameters on the solutions. The numerical results verify the benefits of our model over typical benchmarks, that is, deterministic and stochastic models, and the superiority of our solution algorithm over the CPLEX solver and two well‐known solution approaches, that is, column‐and‐constraint generation and Benders decomposition. Finally, based on the numerical results, we derive managerial insights from the analytical findings.

Precast concrete component yard layout optimization considering safety and efficiency

ABSTRACT The contradiction between the space demand for precast concrete components (PCCs) and the limited area of the construction site is reinforced by the increase in the prefabrication rate of prefabricated buildings, and a large number of PCC hoisting operations may have an adverse impact on the safety and efficiency of the construction site. Therefore, the importance of precast concrete component yard layout planning (PCCYLP) is becoming increasingly prominent. Most existing research on construction site layout planning (CSLP) has focused on all temporary facilities on the construction site and has neglected the particularity of PCC when solving the above problems. Based on this, this paper integrates the PCC hoisting efficiency and safety into the existing CSLP research and optimizes PCCYLP solutions by establishing a PCCYLP model. The model proposes a non-centralized PCC yard division method. Moreover, the surplus rectangle algorithm is used to calculate the yard sizes, which are input into the model in alternative ways. Engineering cases verify the effectiveness of the proposed model, and the non-dominated sorting genetic algorithm is selected for simulation. The results show that the method can enhance the scientific and reasonable layout solution and provide a favorable guarantee for subsequent safe and efficient construction activities.

A study of automated intelligent monitoring of scaffolding safety for construction projects

ABSTRACT In recent years, scaffolding has been widely used in construction in advanced industrial countries in Europe, the Americas, and Asia as a temporary facility for new construction and demolition projects. However, in the complex environment of a construction site, temporary facilities such as scaffolding are only managed by the governments of these various countries via the legal system and are inspected through manual observation, resulting in numerous occupational hazards. Today, the lack of attention to temporary structures such as multi-degree-of-freedom discrete structures (e.g. scaffolding) has resulted in a failure to effectively improve the safety, quality, and performance of scaffolded temporary structures. In this study, the scaffolding system of a costly construction site in Taiwan is used as a case study. A BIM model of scaffolding is built based on the unique geographical location of Taiwan and external factors such as earthquakes and typhoons. The study even uses ETABS structural software to identify the structure of scaffolding and analyze the important monitoring points in order to establish a ’scaffolding intelligent monitoring system’ to effectively control the hazards of scaffolding as a medium, thus achieving the goal of construction safety during construction phase.

Recent Construction Technology Innovations and Practices for Large-Span Arch Bridges in China

Arch bridges provide significant technical and economic benefits under suitable conditions. In particular, concrete-filled steel tubular (CFST) arch bridges and steel-reinforced concrete (SRC) arch bridges are two types of arch bridges that have gained great economic competitiveness and span growth potential due to advancements in construction technology, engineering materials, and construction equipment over the past 30 years. Under the leadership of the author, two record-breaking arch bridges—that is, the Pingnan Third Bridge (a CFST arch bridge), with a span of 560 m, and the Tian’e Longtan Bridge (an SRC arch bridge), with a span of 600 m—have been built in the past five years, embodying great technological breakthroughs in the construction of these two types of arch bridges. This paper takes these two arch bridges as examples to systematically summarize the latest technological innovations and practices in the construction of CFST arch bridges and SRC arch bridges in China. The technological innovations of CFST arch bridges include cable-stayed fastening-hanging cantilevered assembly methods, new in-tube concrete materials, in-tube concrete pouring techniques, a novel thrust abutment foundation for non-rocky terrain, and measures to reduce the quantity of temporary facilities. The technological innovations of SRC arch bridges involve arch skeleton stiffness selection, the development of encasing concrete materials, encasing concrete pouring, arch rib stress mitigation, and longitudinal reinforcement optimization. To conclude, future research focuses and development directions for these two types of arch bridges are proposed.

PLANNING OF CONSTRUCTION SITES USING INFORMATION TECHNOLOGIES

Planning construction sites involves determining the layout of temporary facilities on the site and significantly impacts the safety and efficiency of construction activities. However, such planning is a complex combinatorial problem that encompasses multiple objectives and becomes more challenging with an increasing number of objects and constraints on work execution conditions. To reduce the complexity of creating such solutions, the use of intelligent design systems is facilitated. The study analyzed existing information modeling technologies for finding optimal solutions based on adopted efficiency criteria and identified drawbacks in such systems. Through theoretical research, the conclusion was drawn that current information technologies for optimizing construction site planning address issues only in isolated aspects, such as minimizing the areas of administrative or storage facilities or reducing costs for unproductive resource movements.

Sustainable location-routing problem for medical waste management using electric vehicles

The sustainable management of medical waste is essential for environmental protection and public health safety, contributing to urban development and societal well-being. This study focuses on the medical waste Location-Routing Problem with Electric Vehicles (EVs), aiming to mitigate infection risk while providing cost-effective and energy-efficient logistics solutions. It encompasses diverse elements such as disposal location selection, vehicle scheduling, recharge strategies, time windows, working duration, and load-dependent energy consumption. To tackle this complex problem, we introduce an Evolutionary Decomposition-based Adapted Large Neighborhood Search algorithm (E-ALNS/D), which surpasses existing methods such as MOEA/D-HGS, MOEA/D-LNS, MPGA, and NSGAII-LNS across various urban settings. Empirical analysis and a case study reveal opportunities for enhancing medical waste management with EVs. Key findings show that optimizing service times, adopting fast-charging infrastructure, and strategically placing temporary disposal facilities in response to unforeseen demand spikes significantly reduce energy consumption, lower infection risk, and cut charging cost. Furthermore, selecting peripheral over central disposal locations better minimizes infection risks. This research offers valuable insights for decision-makers in EV-based medical waste management, emphasizing the need to balance public health, environmental sustainability, and economic efficiency. Our methodology paves the way for future research in sustainable medical waste management with EVs.

A bed allocation model for pandemic situation considering general demand: A case study of Iran.

Pandemics place a new type of demand from patients affected by the pandemic, imposing significant strain on hospital departments, particularly the intensive care unit. A crucial challenge during pandemics is the imbalance in addressing the needs of both pandemic patients and general patients. Often, the community's focus shifts toward the pandemic patients, causing an imbalance that can result in severe issues. Simultaneously considering both demands, pandemic-related and general healthcare needs, has been largely overlooked. In this article, we propose a bi-objective mathematical model for locating temporary hospitals and allocating patients to existing and temporary hospitals, considering both demand types during pandemics. Hospital departments, such as emergency beds, serve both demand types, but due to infection risks, accommodating a pandemic patient and a general patient in the same department is not feasible. The first objective function is to minimize the bed shortages considering both types of demands, whereas the second objective is cost minimization, which includes the fixed and variable costs of temporary facilities, the penalty cost of changing the allocation of existing facilities (between general and pandemic demand), the cost of adding expandable beds to existing facilities, and the service cost for different services and beds. To show the applicability of the model, a real case study has been conducted on the COVID-19 pandemic in the city of Qom, Iran. Comparing the model results with real data reveals that using the proposed model can increase demand coverage by 16%.

The Conflict Between Pharmaceutical Patent Right and Life Right and Its Resolution Mechanism: From the Perspective of Legal Philosophy

This paper explores the conflict between pharmaceutical patent rights and the right to life and its resolution mechanisms from the perspective of legal philosophy. It begins by discussing how the outbreak of COVID-19 has led to increased global demands for vaccines, temporary medical facilities, and public health controls, which in turn has sparked reflection on the relationship between pharmaceutical patents and the rights to life and health. The paper then analyzes several typical cases, including the Haiqing Ni counterfeit drug case, the Lu Yong case, and the Shanghai fake vaccine case, to illustrate the specific points of conflict between patent rights and the right to life. It also discusses the positive relationship between patent rights and the right to life, as well as the negative impact of the monopolistic nature of patent rights on the protection of the right to life. To resolve these conflicts, the paper proposes some existing measures, such as the application of the principle of proportionality and the compulsory licensing system, and suggests future possible measures, including the re-improvement of existing measures and the establishment of feasible new measures. In conclusion, while existing measures have alleviated the conflict to some extent, there are still difficulties and limitations in their implementation, necessitating further legislative and regulatory improvements.

Custody: Law Enforcement Issues and Human Rights Protection

The purpose of this study includes the investigation and solving of a set of issues concerning custody from the standpoint of observing and protecting human rights and freedoms. The general scientific, legal, and socio-political tools for investigating public processes, judicial decisions and the practice of the Commissioner for Human Rights in Ukraine were used for a generalising analysis of the present-day realities of custodial issues in institutions of the State Penitentiary Service of Ukraine and the activities of various subjects. An in-depth study of the human rights mechanism in Ukraine upon ensuring and guaranteeing the rights and freedoms of a person in custody has determined the practical significance and originality of the materials of this paper. The subject of this study, related to the violation of the rights and freedoms of citizens during their illegal custody in pre-trial custody centres and temporary detention facilities.

Hotel industry of Ukraine in crisis conditions: challenges, trends, prospects

Hotel industry of Ukraine in crisis conditions: challenges, trends, prospects

К вопросу о криминологической безопасности подозреваемого и обвиняемого

The article discusses the issues of ensuring the safety of suspects and accused persons from criminal en-croachments. It is emphasized that, due to their procedural status, these persons have a high predisposition to criminal threats, and are not always able to independently counter them. It is stated that the most common ille-gal act against suspects and accused is coercion to testify. The use of violence against suspects and accused persons held in temporary detention facilities and remand prisons by the staff of those institutions is no less widespread. Violation of the rights and legitimate interests of suspects and accused persons is also allowed by officers of preliminary investigation and inquiry bodies when falsifying evidence and the results of operational and investigative activities. Conclusion dwells upon the fact that ensuring the criminological safety of suspects and accused should become one of the priorities of public authorities. Based on the study, some recommenda-tions are given aimed at increasing the degree of protection of suspects and accused from criminal threats.

The service life of military constructions from the heritage of the Romanian Ministry of National Defense: between efficiency and adaptability

Romania’s military infrastructure has undergone significant transformations over time. Periods of expansion and modernization have alternated with phases of reduction and, sometimes, the transfer of barracks into civilian administration. These changes reflect not just technological advancements but also the adaptation to the dynamic requirements of national defense.The 2008 infrastructure regulations link the employment duration of military facilities directly to military activity, highlighting the need for a flexible and adaptable infrastructure. In this context, the article examines the legislative framework regarding the amortization of investments, the wear and tear of constructions, and the authorization of works, emphasizing the importance of aligning military regulations with civil ones.In conclusion, the article analyzes the discrepancies between national legislation and military regulations, suggesting revisions and additions to the existing regulations, particularly regarding temporary and semipermanent facilities, to meet the current and future needs of national defense more effectively.

Rental housing. Analysis of the modern normative base

The article examines the problem of providing housing in Ukraine at the present time. The formation of a civilized rental housing market is considered an effective way to solve the problem of providing citizens with a sufficient amount of housing. An analysis of the modern regulatory framework for determining the functional affiliation of temporary accommodation facilities was carried out. Features and differences in the design of public buildings (hotels with apartments) and residential buildings are defined. Considered issues of regulatory restrictions for creating rental housing: determining the time of insolation for these apartments; determination of the maximum level of building density of rental buildings; determining the possibility of integrating public infrastructure for service into such buildings. There was a need to create a new, socially effective mechanism that would allow middle-income citizens to rent housing and improve their quality of life. Currently, the Law of Ukraine "On Rental Housing" has been developed and adopted in the first reading. According to the draft of this Law, rental housing can be located both in separate buildings and as part of multifunctional complexes. At the same time, such typological units may be included in the composition of such complexes (except for rental housing (residential apartments)), such as hotels, office premises, restaurants, cafes, commercial premises and other public premises. According to world practice, various functions in such complexes are usually distributed by height, with placement on different groups of floors. So, for example, there is a hotel on the lower floors, and residential apartments on the upper floors. At the same time, in this case, such residential apartments belong to the profitable (commercial) class. However, at present, the regulatory framework of Ukraine does not define such a typological variety as "Rental housing". Although the functional affiliation of various types of establishments for temporary accommodation of the population, such as "hotel apartments", "apart-hotels" and others, is currently defined in sufficient detail. So, in addition to legislative standardization, there is currently a task to include such type of buildings as rental residential buildings in the regulatory framework of Ukraine.

Analisis Pengelolaan Limbah Medis Padat Di Rumah Sakit Cinere Depok Tahun 2022 Berdasarkan Kepmenkes Nomor 1204/MENKES/SK/X/2004

A health facility is a meeting place for people who are affected by disease and who provide health services, as well as for people and their surroundings. Therefore, it can spread disease if the hospital environment conditions are inappropriate; one that is generated from the hospital is waste. The objective of this study is to be able to find out the analysis of the management of solid medical waste at the Puri Cinere Depok Hospital in 2022. The results of the research on solid medical wastes have been carried out in accordance with the operational standards contained in the Sanitation Hospital according to Kemenkes No. 1204/MENKES/SK/X/2004. The purpose of the clearance is to make disposal and destruction easier so that there are no mistakes in the final process. The collection of waste from the hospital to the B3 temporary storage facility is carried out so that the waste is properly sorted before being placed in the temporary shelter so that it can be disposed of and handled properly in the final process. The disposal used for the disposal of waste at the temporary disposal site is good because it has already carried out the sorting well and adjusted the operational standards for the containers used. The transportation carried out by Cinere Depok Puri Hospital has been in accordance with the procedures established by the government, as the transportation is carried out by Oxularry officers with self-protection equipment provided for safety in transportation, either from the room to the storage site or from the warehouse to the final disposal site. The collection to the final disposal site from the temporary storage site is sufficiently good, as it is sorted and weighed before being taken to the last disposal place. The final disposal or disposal of waste is already working together with PT. Prasadha Pamunah Limbah Industri (PPLi) because it does not have an inquirer and land for disposal, so the Hospital Puri Cinere Depok uses a third party that has been authorized and certified, but for wastewater management, it has been assured that it can be itself because it already has the equipment.