Predictive Modeling and Optimization of TBM Operations: Advanced Techniques Applied to the Jakarta MRT Project DOI

Chairul SalamM,

Orhan Kural

Published: Dec. 5, 2024

Abstract The effectiveness of Earth Pressure Balance (EPB) Tunnel Boring Machines (TBMs) in urban underground construction relies on understanding and optimizing their performance under variable geotechnical conditions. This study investigates the key parameters impacting TBM efficiency during Jakarta Mass Rapid Transit (MRT) Underground Section CP106. Data from operation were analyzed using statistical machine learning techniques, including Mutual Information (MI), Partial Dependence Plots (PDP), Analysis Variance (ANOVA), to identify influential such as Tensile Strength, Uniaxial Spacing, Penetration. Predictive models, Gradient Boosting Regressor, Random Forest Linear Regression, evaluated based error metrics R-squared values, with Regressor showing highest predictive accuracy. Clustering analyses K-Means Principal Component (PCA) further classified operational states, identifying conditions that optimize energy reduce mechanical wear. findings suggest configurations lower Specific Energy, Normal Force, Rolling Force contribute more efficient, less force-intensive tunneling. These insights provide a basis for refining operations modeling tunneling projects.

Language: Английский

Community-centric importance and performance evaluation of Human-Orangutan Conflict management in Aceh, Indonesia DOI Creative Commons

Sapta Suhardono,

Laili Fitria, Iva Yenis Septiariva

et al.

Trees Forests and People, Journal Year: 2024, Volume and Issue: 15, P. 100510 - 100510

Published: Feb. 4, 2024

This study presents an Importance-Performance Analysis (IPA) to evaluate the management strategies for Human-Orangutan Conflict (HOC) in Aceh, Indonesia. Utilizing IPA Grid, research categorizes various into four quadrants, each reflecting different levels of community-perceived importance and performance. Strategies like "Orangutan-Safe Fences" "Community-Based Natural Resource Management (CBNRM) Orangutans" Quadrant A are both important performing well, underscoring effectiveness current efforts these areas. Significantly, "Traditional Measures Orangutan Deterrence," which include non-harmful, traditional methods such as use specific noise deterrents, physical barriers, community-led patrols discourage orangutans from entering human areas, alongside "Quick Response Program Incidents," placed B.. In C, "Strengthen Law Enforcement Conservation Policies" deemed less crucial underperforming, suggesting a lower priority immediate resource allocation. Lastly, D includes well-performing but critical "Early Warning Systems Presence" "Raise Local Awareness About Orangutans," pointing potential over-investment. The study's findings advocate strategic reallocation resources highlight aligning conservation with community priorities effective sustainable HOC management.

Language: Английский

Citations

8
AI and Human-Centric Approach in Smart Cities Management: Case Studies from Silesian and Lesser Poland Voivodships DOI Open Access
Ida Skubis, Radosław Wolniak,

Wieslaw Grebski

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(18), P. 8279 - 8279

Published: Sept. 23, 2024

The presented paper examines the integration of Artificial Intelligence (AI) in management smart cities, focusing on Silesian and Lesser Poland Voivodships Poland. This research addresses a notable gap analysis regional AI strategies within urban management, providing comparative implementation these two distinct regions. Voivodship, with its emphasis traditional industries such as manufacturing energy, contrasts broader approach which includes applications life sciences ICT. explores how technologies enhance efficiency, sustainability, livability through practical traffic healthcare, energy environmental management. It highlights importance human-centric city development, emphasizing inclusivity, transparency, ethical considerations. also delves into socio-technical dynamics deployment, illustrating can transform environments while ensuring that benefits are equitably distributed developments sustainable resilient. By analyzing specific case studies, authors aim to provide empirical evidence insights contribute academic understanding AI’s role ultimately advocating for design prioritize human well-being health.

Language: Английский

Citations

4
Valuation of tourist contributions to carbon reduction for blue economy tourism in Nusa Penida, Indonesia DOI Open Access
I Wayan Koko Suryawan, Ari Rahman,

Sapta Suhardono

et al.

IOP Conference Series Earth and Environmental Science, Journal Year: 2025, Volume and Issue: 1438(1), P. 012089 - 012089

Published: Jan. 1, 2025

Abstract This study explores the economic valuation of tourist support for carbon reduction initiatives within context blue economy tourism in Nusa Penida, Indonesia. Employing a contingent method (CVM), research quantifies tourists’ willingness to pay (WTP) aimed at reducing emissions and promoting sustainable practices marine-focused setting. A sample 1,152 tourists was surveyed assess their financial commitment based on demographic variables such as income, gender, environmental awareness. The analysis reveals that with higher incomes strong inclinations exhibit greater propensity financially projects. is influenced significantly by an understanding benefits these have marine conservation overall health local ecosystem. study’s findings offer crucial insights stakeholders sectors, indicating effective communication positive impacts environments can enhance visitor contributions. These contributions could crucially implementation principles, sustainability Penida.

Language: Английский

Citations

0
Preliminary evaluation of visitor willingness to pay for forest fire prevention in Bromo, Indonesia DOI Open Access
Sapta Suhardono, Ari Rahman, I Wayan Koko Suryawan

et al.

IOP Conference Series Earth and Environmental Science, Journal Year: 2025, Volume and Issue: 1438(1), P. 012090 - 012090

Published: Jan. 1, 2025

Abstract This preliminary study examines the willingness of tourists to contribute financially forest fire prevention in Bromo, Indonesia, a region frequently affected by fires that pose risk both its ecological health and tourism-driven economy. Employing contingent valuation method, research gathered data from 480 visitors regarding their pay (WTP) for implementing effective management strategies. The analysis explored how demographic factors such as gender, income, type tourist, along with perceptions about effectiveness current measures, influence WTP. Logistic regression was utilized analyze data, identifying key predictors WTP implications. Results highlighted higher income levels strong perception early warning systems significantly influenced In contrast, like gender perceived importance green area development showed lesser impact. These insights provide valuable guidance crafting targeted approaches increase public funding management, crucial sustainable tourism environmental preservation Bromo.

Language: Английский

Citations

0
Engagement and support for air quality improvement through MRT usage among freshman students in Jakarta DOI Open Access
Fatimah Dinan Qonitan, I Wayan Koko Suryawan, Ari Rahman

et al.

IOP Conference Series Earth and Environmental Science, Journal Year: 2025, Volume and Issue: 1448(1), P. 012018 - 012018

Published: Feb. 1, 2025

Abstract Jakarta faces an air quality crisis exacerbated by vehicle emissions and urban congestion, with policymakers seeking effective solutions. This study explores attitudes behaviours regarding Mass Rapid Transit (MRT) usage among freshmen at Universitas Pertamina. Using Exploratory Factor Analysis (EFA) cluster analysis on data from 189 valid samples, the research identifies three distinct factors: Environmental Governmental Support for MRT, Personal Productivity Benefits of Accessibility Operational Convenience MRT. The reveals student groups: Fully Engaged, Environmentally Benefit Seekers, Less Engaged. Findings indicate that regular MRT users are more supportive initiatives, suggesting targeted educational campaigns improved accessibility could promote sustainable transport habits. Policy measures such as fare subsidies better public integration may further encourage adoption, contributing to Jakarta’s clean goals.

Language: Английский

Citations

0
The Road to Intelligent Cities DOI Creative Commons
João Carlos N. Bittencourt, Thiago C. Jesus, João Paulo Just Peixoto

et al.

Smart Cities, Journal Year: 2025, Volume and Issue: 8(3), P. 77 - 77

Published: April 29, 2025

The smart-city revolution has been promoted as the next step in urban development, leveraging technology to achieve enhanced development standards amid increasingly complex challenges of urbanization. However, despite implementation more efficient services, issues regarding their tangible effects and impact on people’s lives remain unresolved. In this context, concept intelligent cities is seen a necessary evolution paradigm, positioning human factors driving forces behind technological evolution. This integrative embodies advanced enhance essential functions, with sustainability, equity, resilience macro-development goals. study reviews multifaceted dimensions cities, from designing deploying smart infrastructure implementing citizen-centric decision-making processes. Additionally, it critically examines digital divide highlights importance equitable policies for enabling transformative change. By linking advancement social issues, article provides practical insights case studies Helsinki, Barcelona, Buenos Aires, demonstrating that initiatives are still failing bridge equity service distribution gap. comprehensive assessment approach ultimately serves reference future evaluations transformations.

Language: Английский

Citations

0
Assessing the Ecological Function Effectiveness of Urban Parks in Surakarta City, Indonesia DOI Creative Commons
Sapta Suhardono, Fauziana Erlis Safitri, Fayza Nur Rachmalia

et al.

Ecological Engineering & Environmental Technology, Journal Year: 2024, Volume and Issue: 25(4), P. 227 - 240

Published: Feb. 23, 2024

Urban parks are vital for ecological sustainability within city landscapes, offering services that range from biodiversity preservation to climate regulation.This study evaluates the function effectiveness of urban in Surakarta City, providing a quantifiable assessment their contribution environmental health and biodiversity.Through systematic analysis various Jebres sub-district, indicators such as green open space ratios, oxygen production, microclimate regulation, air pollution absorption, were measured.The findings indicate Lansia Park holds highest rate at 78.80%, signifying its exemplary management value.Contrarily, Gendon ISI Tegalharjo presented lower rates 70.40% 71.00%, respectively, suggesting areas potential improvement.The average across all studied stands 74.03%, reflecting overall positive impact Surakarta's spaces on ecology.This research underscores imperative role enhancing ecosystem provides framework future planning conservation strategies, emphasizing enhancement carbon sequestration capabilities spaces.

Language: Английский

Citations

2
Application of Cellular Automata and Markov Chain model for urban green infrastructure in Kuala Lumpur, Malaysia DOI Creative Commons

Jafarpour Ghalehteimouri Kamran,

Che Ros Faizah,

Rambat Shuib

et al.

Regional Sustainability, Journal Year: 2024, Volume and Issue: 5(4), P. 100179 - 100179

Published: Dec. 1, 2024

Language: Английский

Citations

1
Strategy Formulation to Increase User Intention to Use Electric Ride Hailing Service in Indonesia DOI Creative Commons

Yohanna Gracia Christie,

Novandra Rhezza Primary

Asian Journal of Engineering Social and Health, Journal Year: 2024, Volume and Issue: 3(2), P. 435 - 449

Published: Feb. 10, 2024

The emergence of electric ride-hailing services as a form contribution from applicators in response to the government's transformation movement towards massive and equitable use vehicles (EVs) by 2030 has captured attention public Indonesia. However, this new business model still needs be reviewed gain more awareness so that users can service. Research on user perceptions technology is needed develop services. Analysis factors related adoption process online transportation will carried out using an integrated Technology Acceptance Model (TAM) Theory Planned Behavior (TPB). Data processing analysis Structural Equation Modeling (SEM) method. results showed usefulness significant effect Attitude Towards Use Intention are expected able implement strategies increasing value intention

Language: Английский

Citations

0
Mechanical Properties of Adjacent Pile Bases in Collapsible Loess under Metro Depot DOI Creative Commons
Xiaohua Liu, Mingze Li, Hongjian Liao

et al.

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(13), P. 5819 - 5819

Published: July 3, 2024

Metro transit construction has begun to develop rapidly in northwest China because of the acceleration urbanization. Accordingly, metro depots are also regarded as an essential auxiliary facility for stopping, operation, and maintenance trains. Meanwhile, many commercial buildings constructed over improve utilization rate land due increasingly scarce urban resources, known transit-oriented development (TOD). These have a large covered area transfer concentrated loads bases. Therefore, pile bases under bearing characteristics undertaking loads, while lesser placed on soil between adjacent Additionally, main ground is collapsible loess, so collapsibility should be considered. Based above background, this research performed static loading tests with without immersion reduced scale depot Xi’an. The remolding process natural loess could destroy its structure anisotropy affect test results. four kinds artificial different mass ratios barite powder, kaolin, river sand, cement, industrial salt, calcium oxide were made by free-drop method. This method make simulate reasonably. Then, most similar properties intact was selected comparison. Finally, implemented. results showed that ultimate capacity 4.5 kN. At same time, axial force decreased along depth, since shaft friction positive, load sharing ratio tip increased 0.58 when exceeded kN situation immersion; settlement significantly after immersion, negative occurred at depth −8 cm~−35 cm, reached 0.92.

Language: Английский

Citations

0