Built Environment Studies

BUILDING INFORMATION MODELING (BIM) APPLIED TO DAYLIGHT SIMULATION & ANALYSIS: COMPARISON OF SHADING DEVICE

2025-04-30T21:59:05+07:00

Improving environmental quality in architectural design is crucial in energy efficiency, health, and comfort, directly impacting occupant productivity. In tropical regions, high exposure to solar radiation significantly contributes to increased energy consumption in the building sector, accounting for 36% of total global energy usage. Shading devices are employed as a passive strategy to minimize solar heat gain, maintain thermal comfort, and evenly distribute natural light, reducing reliance on artificial lighting. This study analyzes the impact of different louver types on daylight optimization in shading devices, designed with the same module across various scenarios (louvers at ∠90°, ∠45°, and ∠150°). The research methodology involves computational simulations based on BIM, using Autodesk Revit for prototype modeling, parameter determination, scenario setup, and the Insight Plugin for simulating daylight illuminance (lux) and daylight factor (DF). The results show that the shading device with a 90° louver angle performs optimally in meeting the daylight illuminance standard (300–3000 lux) across various representative dates, achieving a daylight factor (DF) of 3.2%, in line with global standards. The louver angle significantly influences the overall distribution of natural light. This study's limitation is its focus on a single location (Surabaya) and its restriction to three shading device scenarios.

THE IMPACT OF REGIONAL EXPANSION ON THE EFFECTIVENESS OF HEALTHCARE SERVICES

2025-04-30T21:59:04+07:00

The enactment of Law Number 7 of 2002 concerning the Establishment of Penajam Paser Utara (PPU) Regency marked the official formation of this new administrative region, resulting from the separation of four sub-districts from the original twelve in Paser Regency. As a newly established regency, PPU required immediate development in institutional structures, government infrastructure, and development planning. A key indicator of progress lies in healthcare facility improvements, which were previously difficult to access due to reliance on water transport to Balikpapan or Paser. This study aims to analyze healthcare service development in PPU and assess how regional expansion has influenced service effectiveness. The research compares conditions before and after the expansion using a deductive qualitative approach, triangulation, and descriptive methods. Findings indicate that while the number of healthcare facilities declined, service utilization became more efficient, travel distances were reduced, and quality improved. Effective health service delivery depends on availability, accessibility, and continuity. While regional expansion positively affected specific dimensions, its most decisive influence was improved interaction between health workers and patients, disease prevention, and public health education.

CULTURAL IDENTITY, SOCIAL DYNAMICS, AND ECONOMIC ADAPTATIONS: THE VERNACULAR ARCHITECTURE OF KAMPUNG INGGRIS PARE IN THE FACE OF MODERNIZATION

2025-04-30T21:59:04+07:00

Vernacular architecture critically reflects a community's cultural heritage, social structure, and economic dynamics. In Kampung Inggris Pare, Kediri, the architectural landscape has evolved alongside the village’s transformation into a prominent language learning hub. This paper explores how vernacular architecture embodies local traditions, facilitates social interactions, and adapts to economic shifts driven by the growth of language course institutions. The study addresses key questions: How does architecture in Kampung Inggris reflect cultural identity and tradition? How does it shape social dynamics and relationships? How has economic development influenced architectural evolution? What challenges does modernization pose to preserving cultural heritage? This research uses a qualitative literature study to analyze secondary data from academic journals, books, and reports on architecture, social dynamics, and economic changes in Kampung Inggris. Content analysis and preliminary ethnographic study were employed to identify patterns in architectural design, community engagement, and economic transformation. Findings reveal that vernacular architecture in Kampung Inggris integrates cultural symbols and reflects traditional Javanese cosmology, reinforcing community identity. Communal spaces within the architectural layout promote interaction and collaboration, fostering a sense of belonging among residents and visitors. However, economic growth, driven by the proliferation of language courses, has led to structural adaptations that accommodate businesses and students, raising land values and entrepreneurial opportunities. Conversely, modernization threatens to overshadow traditional architectural elements, risking cultural identity loss. This study concludes that a balanced approach to modernization and heritage preservation is essential to sustain Kampung Inggris' unique architectural identity while supporting its economic vitality.

A BIM-BASED STUDY ON THE EFFECT OF WINDOW-TO-WALL RATIO (WWR) ON ELECTRICAL ENERGY EFFICIENCY

2025-04-30T21:59:04+07:00

The construction sector's reliance on non-renewable energy sources affects the sustainability of the world's energy supply. Household electrical energy consumption is one of the main factors contributing to Indonesia's electricity consumption; hence, the residential typology is researched for energy efficiency. This study aims to analyze the variations of window-to-wall ratio (WWR) effect on electrical energy consumption in developing type 55 houses in Sleman, DIY. Several WWR percentage scenarios were created to determine the most effective value for improving building energy efficiency. This research was conducted with the quantitative method using the Building Information Modeling (BIM) simulation through Autodesk Revit software and the Green Building Studio (GBS) plugin. According to the research, WWR impacts buildings' electrical energy usage, particularly for HVAC systems, with a range of around 41% to 52% usage. Alternative scenarios with lower WWR can reduce annual electrical energy consumption and specific energy use intensity (EUI) values. In addition, a 5.8% savings in electricity costs can be obtained with the lowest WWR scenario. Thus, it can be concluded that variations of WWR affect electrical energy consumption and costs in residential buildings.

CRITICAL FACTOR INFLUENCING THE RESIDENTS' DECISIONS TO RENOVATE SUBSIDIZED HOUSES IN SLEMAN REGENCY

2025-04-30T21:59:03+07:00

A house is a basic need that ideally fulfills the aspects of comfort, health, and safety. However, subsidized houses that are built still have constraints in terms of space limitations and material specifications. So it often cannot optimally accommodate the needs of residents. This research aims to identify factors influencing residents' decisions to renovate subsidized houses in Sleman Regency, with case studies of Godean Jogja Hills and Griya Moyudan Asri housing. This research used a descriptive qualitative approach through closed questions and semi-structured interviews. The results showed that space requirements were the main factor driving renovations at 56.97%, followed by comfort reasons and perceptions of insufficient house area. The types of space most added include kitchens and terraces. This research contributes to understanding the dynamics of residents' adaptation to the limitations of the initial design of subsidized houses. It was found that developers and the government need to be considered in designing subsidized housing, which is more flexible, sustainable, and meets the long-term needs of low-income communities.