Maintenance Projects Research Articles

Stakeholder dynamics and their impact on value creation for industrial maintenance projects-a literature review

This paper analyses research developments in the dynamics of stakeholders and their impact mechanisms on the creation of value through a literature review. Three databases, Scopus, Science Direct and Google Scholar are selected to search articles. This study employs a quantitative descriptive analysis and a qualitative thematic analysis to provide a perspective of the data. The findings of the review reveal that stakeholder dynamics management is embedded in project environments and that the dynamic nature of the stakeholder salience attributes can be classified under stakeholder influence and engagement, project lifecycle and dynamics, value creation and framing, and project and stakeholder-associated risk. However, from the characterisation and the drivers of stakeholder dynamics discussed in the literature, the perspective of project risk dynamics has been understudied, with a focus mainly on stakeholder-associated risk to the project, and less on project risk and the stakeholder interactions related to potential losses or gains by stakeholders from such project decisions and activities. Although there is a recognition of the importance of managing stakeholder dynamics within project environments, the factors that affect stakeholder dynamics and their impact on the creation of value for industrial maintenance projects are still unclear. The outcome of the literature review can assist in providing the foundation for the authors’ empirical work of developing a novel conceptual framework for analysing stakeholder dynamics and their impact on maximising value creation in the context of industrial maintenance projects.

Cost Impact Comparative Analysis via BIM between Heritage Regular Maintenance Projects and Long-Term Restoration Projects—A Case Study

The financial implications of long-term restoration projects for cultural heritage, as compared to regular maintenance efforts, often underscore a flawed decision-making process. This can result from years of neglect versus consistent, organized maintenance. Striking a balance between these strategies is paramount for preserving cultural legacies. This research aims to evaluate the trade-offs between the initial expenditures of restoration initiatives and the consistent costs of maintenance activities. We leverage Building Information Modelling (BIM) and its specialized application for heritage preservation, known as Heritage Building Information Modelling (HBIM). This offers a digital depiction of the heritage building’s conservation state and associated intervention costs. Specifically, this study taps into the fifth dimension of BIM, cost estimation, to draw a comparative analysis between the financial ramifications of regular maintenance and long-term restoration projects. This assessment is exemplified through a case study on the “Aidkeen Al-Bendqdari Dome” located in historic Cairo, Egypt—a component of the Prince Taz Palace. The analysis integrates cost data to generate insights. The ultimate goal is to devise a comparative framework that can guide authorities in budgetary decisions and resource distribution.

Comparative performance evaluation of basalt fiber–modified hot in-place (HIP) recycling asphalt mixtures: site mixture versus lab mixture

The performance improvement of hot in-place recycling asphalt mixtures has been a hot topic recently due to the widespread application of HIP recycling technology. Based on the maintenance project of the provincial pavement G233 Baoying section, basalt fibers were introduced into HIP recycling mixtures. The effect of basalt fiber on the comprehensive performance of recycled mixtures was investigated using high temperature stability tests, cracking resistance tests, water stability tests, and dynamic modulus tests. Moreover, the performance of site mixtures was comparatively investigated with that of lab-made mixtures to further explore the site mixing effect on the mixture performance. The results showed that the recycled mixtures without basalt fiber presented unqualified cracking resistance even though proper mixture design was performed. The addition of basalt fibers could greatly enhance the rutting resistance, low-temperature cracking resistance, and stripping resistance of HIP recycled mixtures by 105.2%, 102.3%, and 46.9%, respectively. Moreover, the mixing method also had a significant impact on the properties of mixtures. The recycled mixtures produced by the site re-mixing method showed inferior performance compared to that of mixtures produced by the lab mixing method. Specifically, the dynamic stability, low temperature failure strain, and stripping point values reduced by 44.1%, 16.2%, and 11.7%, respectively, indicating that the site re-mixing process was not as effective as the lab mixing process due to the weaker blending and mixing procedures of the site equipment. The results could be beneficial for the utilization of basalt fiber in HIP recycling technology.

Automatic road crack detection and analysis system based on deep feature fusion and edge structure extraction

ABSTRACT In order to solve the problem that the traditional crack image segmentation method cannot accurately extract the edge structure of road cracks, a flexible crack detection and identification system are provided. Firstly, a road crack dataset is built by processing the acquired images using the sliding window technique. A model called R2-AENet is proposed for training and testing. The model structure uses the recurrent residual convolutional neural network (RRCNN) to improve the convolutional structure and drive the accumulation of fracture features. The model decoder combines the attention-guided filtering module and the edge residuals module (ERB) better to extract the edge features of the feature map. As a result, it improves the crack segmentation performance. Finally, the research results are validated on the upgraded software platform. The experimental results demonstrate that the R2-AENet model achieves better segmentation results compared to the popular deep learning algorithm models. Evidently, the model achieves accuracy and recall of 0.982 and 0.849 on the collected dataset. Besides, the area under the curve (AUC) metric value can reach 0.992. In addition, the detection results in different data sets perform well, verifying that the model has exceptional robustness and can be applied to various environmental road inspection and maintenance projects.

Morphological studies of fly puparia (Diptera: Calliphoridae) in the soil from a Joseon Dynasty grave in Korea.

Archaeoentomological investigations were conducted on soil contents from a grave belonging to the Joseon Dynasty as part of the Urban Environment Maintenance Project (UEMP) in Cheongjin 12-16 dong (districts), Jongno-gu, Seoul, Korea, from December 01, 2008 to February 19, 2011. A total of 28 insect puparia with hard shells of the common green bottle fly Lucilia sericata were identified in the soil. Evidence suggested that the corpse was placed outside for some days instead of being buried immediately after death. This is the first report of fly puparia in soil samples from a tomb of the Joseon Dynasty during 16-17 AD in Korea. Our findings may help determine the timeframe of burial and offer archaeological insights into the funerary customs of the period.

The effects of required security on software development effort

The software industry has been under pressure to adopt security practices and reduce software vulnerabilities. But despite recognizing the importance of secure software development, such practices have not been broadly embraced. Costs are frequently pointed out as a barrier, although studies show that there is a lack of knowledge about the amount of resources needed to achieve a determined level of security assurance. This study quantifies the effort required to develop secure software in increasing levels of rigor and scope. We first developed an ordinal scale to quantify the degree of application of security practices. Next, we built a statistical cost model based on a data set with 1140 maintenance projects from two large companies. The model calibration revealed that the application of software security practices can impact the cost estimations ranging from 19% additional effort, on the first level of the scale, to 102% additional effort, on the highest level of the scale. These results suggest that the effort required to develop secure software is lower than it was estimated in previous studies, especially when considering the domain of Information Systems. This research builds on previous works on cost models for secure software development and goes one step further by providing empirical validation. The resulting model can be used by practitioners to estimate proper resources for adopting security practices. Additionally, the validated cost multipliers are an important piece of information for the research on secure software development investment models.

Study on the Calculation Method of Carbon Emissions in the Construction Industry: Targeting Small River Maintenance Projects in Korea

Study on the Calculation Method of Carbon Emissions in the Construction Industry: Targeting Small River Maintenance Projects in Korea

RDD-YOLOv5: Road Defect Detection Algorithm with Self-Attention Based on Unmanned Aerial Vehicle Inspection.

Road defect detection is a crucial aspect of road maintenance projects, but traditional manual methods are time-consuming, labor-intensive, and lack accuracy. Leveraging deep learning frameworks for object detection offers a promising solution to these challenges. However, the complexity of backgrounds, low resolution, and similarity of cracks make detecting road cracks with high accuracy challenging. To address these issues, a novel road crack detection algorithm, termed Road Defect Detection YOLOv5 (RDD-YOLOv5), was proposed. Firstly, a model was proposed to integrate the transformer structure and explicit vision center to capture the long-distance dependency and aggregate key characteristics. Additionally, the Sigmoid-weighted linear activations in YOLOv5 were replaced with the Gaussian Error Linear Units to enhance the model's nonlinear fitting capability. To evaluate the algorithm's performance, a UAV flight platform was constructed, and experimental freebies were provided to boost inspection efficiency. The experimental results demonstrate the effectiveness of RDD-YOLOv5, achieving a mean average precision of 91.48%, surpassing the original YOLOv5 by 2.5%. The proposed model proves its ability to accurately identify road cracks, even under challenging and complex traffic backgrounds. This advancement in road crack detection technology has significant implications for improving road maintenance and safety.

Uncertainties in scheduling and execution of trackwork in Sweden

Trackwork planning and scheduling are demanding because they require strategic foresight and must be completed well in advance. In Sweden, trackwork is performed by maintenance contracting companies during an operation period free from trains. In the contractors’ practice, once the maintenance plan is authorised, some unexpected events might interrupt the plan’s execution, leading to uncertainties. The purpose of this study is to identify and classify uncertainties and strategies applied to manage uncertainties in the contractors’ everyday planning and scheduling of trackwork. This work presents semi-structured interviews with foremen and planners at railway maintenance contracting companies in Sweden. The main findings show that in trackwork planning and scheduling, contractors deal with two types of uncertainties: internal and external. We categorised uncertainties and strategies to deal with uncertainties and described them on tactical and operational levels. The majority of the revealed uncertainties led to trackwork rescheduling. Furthermore, we suggest that current strategies to manage uncertainties applied at contracting companies can be improved by revising organisational design strategies for maintenance projects. This work increases the understanding and supports the management of uncertainties in trackwork planning and scheduling.

신탁방식 정비사업 신탁수수료율의 영향요인에 관한 연구

Recently, interest and demand for “trust method maintenance projects” are increasing in order to promote stable projects in a number of maintenance projects (planned) areas due to rapid housing supply centered on public redevelopment projects and Moa Town projects in Seoul. The “Trust Method Maintenance Project” was introduced in September 2015 as an amendment to the “Urban and Residential Environment Maintenance Act” to solve the problem of delays in project promotion and lack of expertise. Previous studies mainly discussed how to activate trust method maintenance projects and differences from existing union methods, and studies on the “Trust Fee rate”, a major factor in determining trust methods, are rare. This study derives variables that affect the trust fee rate for the entire domestic trust method maintenance project from January 2016 to December 2021, when the trust method maintenance project was implemented. Based on this, multiple regression analysis analyzed which variables affect the trust fee rate and confirmed that “new total floor area”, “the size of the trust company (small)” and “regional impact (local)” were influencing factors. In other words, it was verified that the size of the project and the degree of risk of the project's progress have an effect on the trust fee rate. This study is significant in that it is the first study on the trust fee rate of trust method maintenance projects that have not been covered in previous studies after investigating the entire trust method maintenance project site in Korea. In the future, this study is expected to be used as a basis for judging the choice of trust method maintenance projects for owners such as unions or land.

지방 소도시 도시재생사업 추진방안 연구

This study reviewed the system and policy direction of the urban regeneration project currently being promoted, and analyzed the residents' perception of the urban regeneration project in small local cities.
 Although the recent urban regeneration policy is in the direction of avoiding non-physical software projects such as resident capacity building, the purpose of urban regeneration projects is to revitalize the region through integrated promotion of non-physical projects along with physical projects such as maintenance projects. If the software business is completely excluded and the regeneration business is promoted, it is thought that there will be many difficulties in actual regional revitalization through the business.
 In addition, in the case of local eup/myeon units, the conditions for promoting urban regeneration projects in many aspects, such as the number of local populations and aging, are very different from those in the metropolitan area and urban areas. It is considered that it should be applied somewhat differently.
 Therefore, this study tried to find out the parts that need to be supplemented when promoting local regeneration projects by reviewing the current urban regeneration project promotion method from an institutional perspective such as legal guidelines. In addition, through an empirical analysis of residents' perceptions of the Hapcheon-eup urban regeneration project district, we analyzed the matters that should be applied differently from the urban regeneration project in the metropolitan area when promoting the urban regeneration project in the local area, and thus for the future urban regeneration policy of small local cities. It is intended to be presented as a reference.

재건축부담금 산정 방식의 개선을 위한 합리적 방안에 관한 연구

The purpose of this study is to examine how excessive the reconstruction levy is in the reconstruction maintenance project, what the cause of such excessive charge is calculated, and to study the solution. The development levy and reconstruction levy of the development levy system, which became the basis of the reconstruction levy system, are very similar in purpose, nature, and calculation method, but the difference in actual burden is excessive, raising concerns about equity and balance. In this regard, this study examines the contents of unreasonable charges through literature analysis and case analysis of reconstruction project areas in Seoul and Gyeonggi-do, where reconstruction charges are scheduled to be imposed recently, and proposes solutions from various aspects. The reconstruction levy is generally high regardless of regional factors, such as Seocho, Gangnam, and non-Gangnam areas, complex size, and apartment price level. It needs to be rationally improved. In order to reasonably calculate the reconstruction levy, various measures were proposed to ensure objectivity and fairness by matching the calculation standards and market price reflection rate of the housing price at the start and end of the reconstruction, and by calculating through a specialized institution. In the current real estate market, which is suffering from serious side effects due to the lack of supply of newly built apartments, we hope to achieve the goals of stabilizing real estate prices, sound development of the national economy, and social integration through institutional improvements.

A study on carbon dioxide emissions of high-polymer road maintenance technology based on life cycle assessment evaluation

Road repair and maintenance is the foundation for maintaining the health of roads. High-polymer grouting technology is an advanced non-excavation road repair and reinforcement technique. However, there is limited existing research focusing on this material and technique's carbon dioxide emissions and influencing factors. This study aims to elucidate the carbon dioxide emissions in the life cycle assessment of high-polymer grouting repair technology, using the example of maintenance work on semi-rigid asphalt pavement. The solidification reaction of each kilogram of high-polymer grouting material will release approximately 11.82 g of carbon dioxide. Comparative analysis was conducted by juxtaposing the carbon dioxide emissions at various stages of high-polymer grouting technology with those of cement grouting techniques and traditional excavation-based repair methods, encompassing conventional assessment (CA) on fuel combustion of engineering equipment and comprehensive life cycle assessment (LCA) on the materials production, fuel production, traffic delay, and engineering equipment. The results indicate a substantial reduction in carbon dioxide emissions for highway maintenance projects employing high-polymer grouting repair technology. The carbon dioxide emissions were reduced by 76.1% and 87.3% respectively per kilometer. The primary contribution to carbon dioxide reduction is observed during the construction phase and in terms of alleviating traffic delays. An indirect relationship is established between the carbon dioxide emissions of high high-polymer grouting materials and their strength, providing a reference for dynamically selecting material density in maintenance projects. The analysis of potential strategies to reduce CO2 emission in the transport sector and other industrial sectors suggests that the LCA model has the capability to accurately pinpoint the main contributing factors and CO2 emission levels stemming from specific maintenance processes within the intricate transportation system. The emphasis on enhancing the production technology of high-polymer materials is pivotal for further reducing carbon dioxide emissions in the context of high-polymer grouting repair technology.

Evaluation of asphalt pavement maintenance using recycled asphalt pavement with asphalt binders

Road maintenance projects require innovative, economical, and environmental solutions. This study evaluated recycled asphalt pavement (RAP) as a greener aggregate alternative to natural aggregate for the maintenance of asphalt concrete in flexible pavements. The mechanistic performance of warm mix and cold mix asphalt concretes using recycled asphalt pavement (RAP) was furthermore investigated in this study. The bitumen binders used were asphalt cement AC60/70 for warm mix asphalt concrete and asphalt emulsion CMS-2 h for cold mix asphalt concrete. Laboratory tests undertaken include Marshall stability and flow, indirect tensile strength, indirect resilient modulus, indirect tensile fatigue, and permanent deformation were performed to ascertain the true performance of RAP-AC60/70 and RAP-CMS-2 h mixtures as maintenance asphalt concretes. The laboratory test results of RAP-AC60/70 and RAP-CMS-2 h mixtures were compared with those of a conventional warm mix asphalt concrete using limestone and asphalt cement AC60/70. The results indicated that the overall performance of both RAP-AC60/70 and RAP-CMS-2 h mixtures was comparable to the Limestone-AC60/70 mixtures. The total material cost of RAP-60/70 and RAP-CMS-2 h mixtures was approximately 60% lower than Limestone-AC60/70 mixture. However, the RAP-CMS-2 h mixture had more advantages than RAP-60/70 in terms of maintenance operation and carbon footprint emission. The usage of RAP with both CMS-2 h for repairing pavement deterioration was found to provide a more cost-effective and greener solution.

A Human Detection Approach for Intrusion in Hazardous Areas Using 4D-BIM-Based Spatial-Temporal Analysis and Computer Vision

Detecting intrusion in hazardous areas is one of the priorities and duties of safety enhancement. With the emergence of vision intelligence technology, hazardous-area-detection algorithms can support safety managers in predicting potential hazards and making decisions. However, because of the dynamic and complex nature of the jobsite, high-risk zones have a different geometry and can be changed following the schedule and workspace of activity. This leads to hazardous areas being annotated manually. Thus, this study proposes a computer vision and a 4D BIM-based approach for intrusion detection in hazardous areas, called IDC4D. IDC4D comprises three modules: (1) the 4D BIM-based safety planning (4BSP) module, which analyzes the hazardous area; (2) the hazardous area registration (HAR) module, which delivers the hazardous area from the BIM model to the camera’s first frame image; and (3) the hazardous-area-intrusion-detection module (HAID), which applies the computer vision algorithm to identify the correlation between workers and hazardous areas. The efficiency of the IDC4D approach is validated by testing a maintenance project on the construction site. IDC4D supports the planner in choosing the plan and detecting the event of workers entering hazardous areas while working. It showed an average precision of 93% and 94% in phase 1 and phase 2, respectively. These findings provide insight into how varying geometries of diverse hazard areas can be handled for enhancing intrusion detection.

재건축사업구역 내 임대차관계에 대한 도시정비법의 규율과 법적 쟁점 검토

The text of Article 81, Paragraph 1 of the 「Urban and Residential Environment Improvement Act」 (provision for suspension of use and profit) suspends the right of use and profit of the lessee in the reconstruction project area until the date of notification of transfer when there is a notice of management and disposal plan approval. On April 23, 2020, the Constitutional Court decided that compensation for reconstruction tenants could be resolved by lease contracts with landlords, that is, private autonomy, and therefore, provision for the suspension of use and profit did not violate the proportional principle.
 According to private law regulations such as the Housing Lease Protection Act and related regulations of the Urban Improvement Act, the redevelopment and reconstruction project may be a reason for refusal to renew the lease contract, but it is interpreted that the landlord, the owner of the building, cannot terminate the lease unilaterally. For the rapid progress of the maintenance project, the lease contract needs to be terminated in the middle, but for this purpose, the lease contract must include a special contract for the expiration of the lease right and transfer of the lease, or the lease contract must be terminated by agreement.
 However, the suspension of use and profit clause suspends the tenant's right to use and benefit, regardless of whether the lease contract between the lessor and the lessee has been terminated by private autonomy. The reconstruction project is basically a private-led maintenance project and is not a project with strong public interest and publicity like the redevelopment project. Nevertheless, uniformly suspending the use and profit of tenants for the progress of the reconstruction project violates the principle of minimal infringement. Moreover, considering the characteristics of real estate leases, which are the basis for housing and livelihood, it would be said to violate the principle of balance of legal interests. For the benefit of the project operator, if the method of resolving the lease relationship through private autonomy is excluded and the lease right is forcibly lost, it is balanced to systematically stipulate compensation measures for the tenant.
 Compensation measures that must respond to complex and diverse lease relationships need to be flexible. The level of compensation does not have to be the same as the redevelopment tenant, and it can be adjusted.

가로주택정비사업 활성화를 위한 법적 개선과제

It can be evaluated that our housing administration has contributed to solving the absolute shortage of housing. However, it has caused numerous side effects, including speculative investment in real estate, threats of housing rights for the common people, and intensification of extreme disputes among residents over business promotion.
 Recently, due to these side effects, the Urban Renewal Projects, such as large-scale urban maintenance projects as in the past, have been greatly reduced. Paradoxically, however, as the housing supply decreased, another social problem occurred, such as the increase in the number of deteriorated housings, vacant houses, and the acceleration of slumming in the region.
 To resolve these problems, the government introduced The Street Housing Improvement Project through a revision of ｢Act on the Improvement of Urban Areas and Residential Environments｣(2012) and a legislation of ｢Act on Special Cases Concerning Unoccupied House or Small-scale Housing Improvement｣(2018). It is faster than the existing readjustment project and has the advantage of increasing the resettlement rate of indigenous people.
 However, It is necessary to review the public work of the reconstruction project and the housing improvement project in a city block, examine whether the legislation is valid or not, focusing on legal issues that compare between the expropriation and request for Sale. In determining the public work of reconstruction projects and housing improvement project in a city block, the expropriation violates the principle of proportionality.
 Therefore, in order to improve these problems, above all, it is necessary to increase business feasibility by expanding the size of the business. In addition, rather than the immediacy of the project, it is necessary to create a system such as the Dispute Mediation Committee, that can mediate conflicts between residents.
 Of course, some of the above improvements will not be able to activate Street-Housing Redevelopment Projects. Basically, in order for Street-Housing Redevelopment Projects to properly settle down and achieve their original purpose, the street-housing maintenance project must be converted to an Actual Residence perspective, The society will need a great transition of perspective from “immediacy and efficiency effectiveness” to “safety and happiness” and “the aesthetics of slowness”.

정비기반시설의 무상양도와 유상매입

The scope of fundamental infrastructure to be transferred free of charge to the project implementer is determined directly in accordance with the provisions of the Act on the improvement of urban areas and residential environments(Urban Renewal Act), and the administrative agency does not have discretion over whether or not to transfer and the scope thereof. Summarizing the legislative purpose of Article 97 of the Urban Renewal Act and the conceptual system of public facilities under the current Urban Planning Act, fundamental infrastructure owned by the state or local governments to be abolished due to maintenance projects is the type of infrastructure regardless of whether or not it was installed as an urban planning facility plan. It is difficult to agree with the logic of the existing judgment that drastically reduces the scope of fundamental infrastructure that is transferred free of charge without legal grounds.
 Even after judicial criticism of the existing judgment was raised, the attitude of the Supreme Court, which schematically limited the subject of free transfer to urban planning facilities without presenting any additional reason, said that the range of free transfer could not be limited without a statutory basis. It is also inconsistent with the basic position of the precedent.
 In addition, in the case of the subject judgment, if the administrative agency explicitly specified the scope of direct gratuitous transfer as the contents of the project im- plementation plan approval, this constitutes the contents of the project implementation plan approval disposition, so the objection to it is, in principle, an appeal against the disposition. will have to resort to litigation. Therefore, it is doubtful whether it is reasonable to judge that the scope of the gratuitous transfer obligation can be directly contested by the project operator in the subject judgment through a party suit.
 In the reality of administrative disputes in Korea, which are operated with a focus on appeals suit, in principle, the project operator's disagreement over the scope of gratuitous transfer or purchase for a fee is an appeal lawsuit against dispositions such as approval of the project implementation plan that sets the scope of gratuitous transfer or the purchase agent for a fee. However, considering the purpose of the provisions of the Urban Renewal Act, it is reasonable to widely acknowledge the grounds for invalidation.
 Finally, some legislative theories for institutional improvement are presented. First, it is necessary to clarify the scope by specifying in the Urban Renewal Act that de facto infrastructure be included in the subject of free transfer if it meets the physical requirements and publicity as infrastructure. Second, the current law gives up the definition of various public facilities and simply enumerates a list of facilities, causing legal uncertainty. The definitions of various public facilities must be clearly revised in the direction of properly regulating the publicity and externality of infrastructure as legal requirements. Third, Article 97 of the current law has the title of‘Vesting of Ownership of Fundamental Infrastructure and Land' with the intention of simultaneously regulating the ownership of fundamental infrastructure and its site. and transfer only. Strictly speaking, fundamental infrastructure and its site may be separate objects, so the subject of attribution and transfer under the above regulation is defined as “fundamental infrastructure and its Land” should be amended to clarify the rules regarding ownership of the site.

Improvement of Turnaround Maintenance Project Execution Through Long-Term Specific Contracting Strategy (A Case Study: Gas Processing Plant in Indonesia)

Turnaround is crucial in maintaining reliability and ensuring the safety of the production operation facility in Central Processing Plant "CPP Senoro of JOB Tomori, as well as in minimizing downtime and Loss of Production Opportunity (LPO), which impact the performance and commitment of the Company to all stakeholders. For this reason, an improvement in total time utilization in the third Turnaround in 2024 is a significant concern. The researchers conducted qualitative research through interviews with several key personnel in the organization as respondents to comprehend the overall complexities of the TAR Project, which often occurred while carrying out the execution, because they might lead to failure to optimize the utilization of the total time (shutdown). Researchers also evaluate how the preferred contract strategy can be an alternative solution to minimize those constraints. This research aims to provide alternative solutions and recommendations to Company to optimize the total time (shutdown) utilization through a specific long-term contract strategy. The research considers specific long-term "incumbent" contracts as an alternative solution and the most suitable contract strategy to execute the third turnaround project in 2024.

Enhancing DSS Exploitation Based on VGI Quality Assessment: Conceptual Framework and Experimental Evaluation

The latest advances in spatial information technology have led to the emergence of Volunteered Geographic Information (VGI) as enrichment to existing spatial data sources. Additionally, Decision Support Systems (DSS) are among the fields that have seen major advances. Volunteered Geographic Information (VGI) has great potential as a valuable data source to decision support systems. Several studies have been proposed to integrate VGI data into DSS. However, as VGI data may have different levels of quality, integrating VGI data with poor quality may affect the decision-making process. In fact, VGI data with poor quality. that are obsolete or incomplete, could, if integrated into a spatial DSS, lead to inappropriate analysis results. This paper presents an approach that aims to enhance spatial DSS analysis and exploitation by integrating high quality VGI data that are appropriate to the user requirements, and that have a good indicator completeness and time relevance. The approach introduces a conceptual framework that evaluates VGI data quality and integrates only high quality VGI data into spatial DSS. The proposed approach is experimented on a road maintenance project in Grand-Tunis. We develop the Map-Report prototype, and we evaluate the efficiency of our approach in enhancing data analysis and exploitation in spatial DSS by reducing the error rate and providing accurate and precise analysis results.