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All Journal Journal of Development Research JTERA (Jurnal Teknologi Rekayasa) Dinamisia: Jurnal Pengabdian Kepada Masyarakat WAKTU: Jurnal Teknik UNIPA Piston: Journal of Technical Engineering ILKOMNIKA: Journal of Computer Science and Applied Informatics CERMIN: Jurnal Penelitian G-Tech : Jurnal Teknologi Terapan JUSTER: Jurnal Sains dan Terapan
Pratama, Ananta Kusuma Yoga
Program Studi Teknik Sipil, Fakultas Teknik, Universitas 17 Agustus 1945 Banyuwangi
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Time and Cost Efficiency Analysis of Hotmix Road Rehabilitation: A Case Study in Papring, Kalipuro District Prasetyo, Novan Dwi; Sunarko; Prasetyo, Yohanes Pracoyo Widi; Pratama, Ananta Kusuma Yoga
Journal of Development Research Vol. 9 No. 2 (2025): Volume 9, Number 2, November 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/jdr.v9i2.456

Abstract

Efficient project delivery is a critical requirement for rural road rehabilitation programs, yet empirical evaluations of implementation efficiency remain limited. This study analyzes the time and estimated cost efficiency of the Papring Hotmix Road Rehabilitation Project in Kalipuro District, Banyuwangi, using a descriptive quantitative case study approach based on weekly and monthly project documentation. Project performance was measured by comparing baseline planning with field realization, supported by calculations of time efficiency, deviation analysis, and cost implication estimation derived from work-weight distribution. The project was completed in 55 days, significantly faster than the 120-day planned duration, resulting in a time efficiency of 54.17% and a maximum positive deviation of +76.32% at completion. Major work components: AC-WC (65.616%), AC-BC (18.249%), and aggregate base layer (12.436%), were executed intensively between Weeks 4 and 7, enabling a shortened execution period that suggests potential savings in indirect project costs such as overhead, labor, and field operations. Acceleration was driven by effective technical scheduling, early resource mobilization, optimized labor deployment, and strong contractor–consultant coordination. The findings highlight the importance of structured progress evaluation for improving scheduling and cost control in rural road rehabilitation projects. Future work should incorporate financial realization data and risk-productivity modelling to strengthen efficiency assessment in accelerated infrastructure delivery.
Karakterisasi Osilasi Single Degree Of Freedom Suspensi Kendaraan Terhadap Eksitasi Permukaan Jalan Berbasis Akselerometer Smartphone Ananta Kusuma Yoga Pratama
JUSTER : Jurnal Sains dan Terapan Vol. 5 No. 1 (2026): JUSTER: Jurnal Sains dan Terapan
Publisher : Jompa Research and Development

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57218/juster.v5i1.2483

Abstract

Sistem suspensi kendaraan dapat dimodelkan sebagai sistem getaran teredam single degree of freedom (SDOF), namun validasi karakteristik dinamis model ini umumnya memerlukan instrumen khusus yang relatif mahal dan tidak selalu tersedia untuk pengukuran lapangan. Penelitian ini mengusulkan pendekatan pengukuran berbasis akselerometer smartphone sebagai metode berbiaya rendah untuk mengkarakterisasi respons dinamis sistem SDOF suspensi kendaraan secara in-situ. Kontribusi utama penelitian ini adalah menunjukkan karakterisasi osilasi SDOF dalam menjelaskan fenomena resonansi akibat eksitasi permukaan jalan yang bermanfaat untuk menjembatani analisis sinyal getaran dengan dasar fisika sistem suspensi kendaraan berbasis teori mekanika. Percepatan vertikal (sumbu z) diukur dengan menempatkan smartphone pada dashboard kendaraan, kemudian sinyal dianalisis pada domain waktu menggunakan Root Mean Square (RMS) dan pada domain frekuensi menggunakan analisis Power Spectral Density (PSD) untuk mengidentifikasi distribusi energi getaran dan frekuensi dominan sistem. Hasil menunjukkan bahwa nilai RMS akselerasi pada jalan biasa lebih tinggi sekitar 42% dibandingkan jalan tol, serta magnitudo PSD pada jalan biasa secara konsisten lebih besar pada hampir seluruh rentang frekuensi,. Hasil ini menunjukkan bahwa kombinasi parameter RMS dan karakteristik PSD dari data smartphone berkorelasi dengan tingkat kekasaran permukaan jalan dan serta memberikan estimasi yang konsisten terhadap respons dinamis sistem SDOF.
Co-Authors Ainur Rofiq Ainurrofiq, Ainurrofiq Magdalena Putri Nugrahani Mitrayana Mitrayana - Oktavima Wisdaningrum Prasetyo, Novan Dwi Sunarko Yohanes Pracoyo Widi Prasetyo