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Jurnal Sains dan Teknologi
Published by Universitas Cenderawasih
ISSN : 29620236     EISSN : 2961936X     DOI : 10.58169
Core Subject : Engineering,
Electrical & Electronics Engineering
pada bidang Teknik Industri, Teknik Pertambangan, Teknik Lingkungan, Sistem Informasi, Sains dan Teknologi, Pendidikan serta Kejuruan dan Rekayasa
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 94 Documents
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Evaluasi Kinerja Bundaran Kota Baru di Kota Pontianak Menggunakan Metode PKJI 2023 dan Software VISSIM Gerardus Elias; Elsa Tri Mukti; Ferry Juniardi
Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Juni : Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/saintek.v5i1.1156

Abstract

Bundaran Kota Baru Pontianak merupakan simpang penting yang menghubungkan empat ruas jalan utama. Penelitian ini menganalisis kinerja eksisting bundaran, memproyeksikan kinerjanya pada tahun 2030 dan 2035, serta merumuskan rekomendasi peningkatan kinerja menggunakan Pedoman Kapasitas Jalan Indonesia (PKJI) 2023 dan simulasi mikro VISSIM. Data yang digunakan meliputi volume lalu lintas jam puncak, data geometrik, pertumbuhan kendaraan tahunan, dan kecepatan kendaraan. Hasil PKJI 2023 kondisi eksisting menunjukkan derajat kejenuhan tertinggi 0,532 dan tundaan 8,25 detik/smp (LOS B), sedangkan VISSIM menghasilkan tundaan 8,56 detik/kendaraan dan antrean 15,54 meter. Pada 2030, derajat kejenuhan naik menjadi 0,712 dengan tundaan 10,07 detik/smp (LOS B), sementara VISSIM menunjukkan tundaan 19,41 detik dan LOS C. Pada 2035, derajat kejenuhan mencapai 0,934, tundaan 16,05 detik/smp (LOS C), dan VISSIM menunjukkan tundaan 36,68 detik dengan LOS D. Alternatif terbaik, pelebaran Jalan Selayar dan Jalan Prof. M. Yamin masing-masing 2 meter, menurunkan tundaan menjadi 23,51 detik/kendaraan dan meningkatkan LOS menjadi C.Kata kunci : Bundaran, PKJI 2023, VISSIM, derajat kejenuhan, tingkat pelayanan
Perubahan Pola Permukiman di Lahan Sawit : Studi Kasus di Muara Kedang, Kecamatan Bongan, Kabupaten Kutai Barat Vindy Aninditha Putri; Yulian Widya Saputra; Nurul Azmi; Sutriani Sutriani
Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Juni : Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/saintek.v5i1.1160

Abstract

Land conversion into oil palm plantations represents a form of land use change that not only alters the physical characteristics of an area but also affects community life, including settlement patterns. This study aims to analyze the factors that encourage communities to convert land into oil palm plantations and to examine its impacts on changes in settlement patterns in Muara Kedang Village, Bongan District, West Kutai Regency. This research employed a qualitative approach using a descriptive method to provide an in-depth understanding of changes in community settlement patterns. Informants were selected using purposive sampling and consisted of six participants, including two community leaders, two residents who experienced changes in settlement patterns, and two migrant residents. Data were collected through observation, semi-structured interviews, and documentation. Data were analyzed using the interactive model developed by Miles and Huberman, while data validity was ensured through source triangulation and technique triangulation. The findings indicate that land conversion is influenced by economic factors, employment opportunities, road infrastructure development, and the presence of plantation companies. The impacts include the transformation of settlement patterns into a more dispersed form, improved regional accessibility, the arrival of migrant residents, changes in social conditions, increased employment opportunities and income, as well as a growing demand for public facilities.
Analisis Penerapan Sistem Manajemen Keselamatan Konstruksi (SMKK) Pada Proyek Konstruksi di Kabupaten Kubu Raya Anissa Adisti; Lusiana Lusiana; Rafie Rafie
Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Juni : Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/saintek.v5i1.1162

Abstract

The construction sector carries a high risk of occupational accidents, making implementation of the Construction Safety Management System (SMKK) essential for construction safety. In Kubu Raya Regency, the West Kalimantan Manpower Office recorded 17 accident cases in 2024 and 13 in 2025. This study analyzes the level of SMKK implementation based on Ministerial Regulation No. 10 of 2021, and identifies supporting and underperforming aspects across four construction projects in Kubu Raya Regency. A descriptive quantitative method was used through structured interviews based on 80 indicators covering five SMKK elements, namely Leadership and Worker Participation, Planning, Support, Operations, and Construction Safety Performance Evaluation, along with field observations. The four projects were selected solely based on their location, regardless of funding source, ownership, or contracting agency. Data were analyzed using the achievement percentage of each SMKK element and the weighted mean method. Results showed SMKK implementation levels of 100%, 98.75%, 78.75%, and 72.08%, with an overall weighted mean of 90,05%, classified as Well Implemented. Projects with lower implementation levels required improvement, particularly in Leadership and Worker Participation, Operations, and Performance Evaluation. These findings indicate that consistent implementation of all SMKK elements plays an important role in supporting construction safety..
Perubahan Kerapatan Vegetasi dan Bangunan terhadap Distribusi Urban Heat Island (UHI) di Kota Bukittinggi Tahun 2015 dan 2025 Nadyya 'Azima Muarif; Dwi Marsiska Driptufany
Jurnal Sains dan Teknologi Vol. 5 No. 1 (2026): Juni : Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/saintek.v5i1.1173

Abstract

Rapid urban development in Bukittinggi City has altered vegetation cover, built-up density, and surface thermal conditions. This study maps and compares the Normalized Difference Vegetation Index (NDVI), Land Surface Temperature (LST), Normalized Difference Built-up Index (NDBI), and Urban Heat Island (UHI) in 2015 and 2025 and examines the relationships of NDVI and NDBI with UHI. Quantitative descriptive spatial analysis used Landsat 8 OLI/TIRS imagery processed in ENVI and ArcGIS. NDBI classification accuracy was assessed using ROC-AUC, while relationships were evaluated with Pearson correlation and simple regression. Very low vegetation increased from 621.54 to 707.31 ha, while medium vegetation decreased from 538.65 to 451.44 ha. Maximum LST rose from 28.45°C to 31.24°C. Medium built-up land increased from 611.01 to 691.29 ha. Non-UHI area decreased from 598.14 to 461.07 ha, whereas high-intensity UHI expanded from 521.82 to 588.51 ha. The NDBI map achieved an AUC of 0.811, indicating very good classification performance. NDBI showed the strongest positive relationship with UHI, while NDVI showed a weak negative relationship. LST was analyzed descriptively because UHI was derived directly from LST. These findings emphasize the importance of controlling the concentration of built-up surfaces and maintaining urban vegetation.

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