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All Journal Teknisia Jurnal Aplikasi Teknik Sipil Media Ilmiah Teknik Sipil Portal: Jurnal Teknik Sipil Jurnal Engineering Pengmasku Jurnal Pusat Studi Pendidikan Rakyat (PUSDIKRA) PIKAT Journal of Embedded Systems, Security and Intelligent Systems
Raafi Widyaputra Yulianyahya
Universitas Esa Unggul
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Identifikasi Simpang Tak Bersinyal: (Studi Kasus : Simpang Puskesmas Gondokusuman Yogyakarta) Yulianyahya, Raafi Widyaputra; Widjaya, Christian Dwi Putra; Syafriyandi, Debby
Jurnal Pusat Studi Pendidikan Rakyat Volume 3 Nomor 4 November 2023
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/jpspr.v3i4.1724

Abstract

Simpang Puskesmas Gondokusuman, Yogyakarta merupakan jenis simpang 4 (empat) tak bersinyal. Lengan utara merupakan Jalan Pengok Kidul, lengan timur merupakan Jalan Tunjung, lengan selatan merupakan Gang Teratai, lengan barat merupakan Jalan Tunjung. Tujuan penelitian ini adalah untuk mengidentifikasi kinerja simpang tak bersinyal eksisting sehingga diketahui nilai derajat kejenuhan apabila melebihi standar teknis, sehingga dapat dilakukan normalisasi simpang tak bersinyal. Metode analisis yang digunakan yaitu dengan pendekatan Manual Kapasitas Jalan Indonesia (MKJI, 1997) dengan 3 (tiga) periode waktu yaitu pagi, siang, dan sore. Hasil kinerja simpang tak bersinyal eksisting didapatkan bahwa peride sore hari dengan nilai derajat kejenuhan 0,73 yang dalam artian mendekati dari nilai standar teknis. Dari hasil kinerja eksisting tersebut sehingga perlu dilakukan antisipasi normalisasi simpang tak bersinyal.
Analisa Perhitungan Perkerasan Jalan Raya pada Lingkar Luar Km 13+512-Km 18+401 Kota Palangka Raya Menggunakan Perencanaan Tebal Perkerasan Lentur Jalan Raya Dengan Metode Analisa Komponen (SKBI–2.3.26.1987) Syafriyandi, Debby; Widjaya, Christian Dwi Putra; Sitanggang, Ansadilla Niar; Putra, Arfilian Permana; Yulianyahya, Raafi Widyaputra
Jurnal Pusat Studi Pendidikan Rakyat Volume 4 Nomor 2 Mei 2024
Publisher : CV. PUSDIKRA MITRA JAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51178/jpspr.v4i2.2015

Abstract

Kontruksi perkerasan jalan salah satu unsur penting dalam rangka kelancaran transportasi darat sehingga memberikan keamanan dan kenyamanan bagi penggunanya, sehingga kontruksi perkerasan jalan perlu direncanakan dengan baik berdasarkan standar dan kriteria perencanaan yang berlaku di Indonesia. Lapis perkerasan jalan mampu untuk mendukung dan menyebarkan beban lalu lintas baik beban vertikal maupun horizontal/gaya gesek, kedap air, menyediakan permukaan yang tetap rata, serta membentuk permukaan yang tetap licin. Jalan Lingkar Luar Km 13+512 - Km 18+401 Kota Palangka Raya merupakan ruas jalan dengan jalur tidak padat akan tetapi jalan ini salah satu jalan alternatif menuju Kabupaten Tangkiling. Jalan Lingkar Luar pada Km 13+512 - Km 18+401 Kota Palangka Raya pada awalnya struktur badan jalan belum dapat dilewati kendaraan lalu lintas, sehingga perlu peningkatan struktur. Berdasarkan perhitugan perkerasan lentur dari kedua metode yaitu : Metode Perencanaan Tebal Perkerasan Lentur Jalan Raya Dengan Metode Analisa Komponen (SKBI–2.3.26.1987) adalah sebagai berikut : Lapis Permukaan 8 cm ; Lapis Pondasi Atas 19,75 cm ; Lapis Pondasi Bawah 10 cm.
Analisis Dampak Lalu Lintas Pasar Ngablak Kabupaten Magelang: Traffic Impact Analysis Of Ngablak Market Magelang County Yulianyahya, Raafi Widyaputra; Kasikoen, Ken Martina
Media Ilmiah Teknik Sipil Vol. 12 No. 1 (2024): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v12i1.6216

Abstract

Changes in the structure of urban space will affect movement patterns, ultimately burdening the existing road network in an area. Traffic Impact Analysis (TIA) is an analysis of the influence of land-use development on the system of traffic flow movement around the development; this is caused by the emergence of new traffic, shifting traffic, and vehicles coming in and out of or to the development land. The construction of Pasar Ngablak can have a new traffic impact and increase the traffic load around the market, disrupting traffic links that can reduce the level of road services. This study aims to analyze the impact of market development activities that are useful to minimize traffic impact and provide appropriate recommendations. The research method used was the approach of the 1997 Indonesian Road Capacity Manual (MKJI, 1997), with the results of the delay value and degree of saturation. The results of the delay value and degree of saturation are used to see the existing conditions and during operation. However, predictions for the next 5 (five) years after development need to be watched out for and given appropriate recommendations because there is an increase in traffic movement around the market
Dampak dan pengelolaan pembuangan sampah di sekitar kali/sungai perumahan Harapan Citra Insani dan pengaruh terhadap lingkungan Syafriyandi, Debby; Widjaya, Christian Dwi Putra; Yulianyahya, Raafi Widyaputra; Sitanggang, Ansadilla Niar; Putra, Arfilian Permana; Trialita, Rosdiana
Pengmasku Vol 4 No 2 (2024)
Publisher : PT WIM Solusi Prima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54957/pengmasku.v4i2.1195

Abstract

Air adalah sumber kehidupan utama bagi masyarakat, menjadi pokok dalam setiap aspek keberlangsungan hidup manusia. Selain itu, air juga penting dalam sektor pertanian dan industri, sebagai bahan baku maupun dalam proses produksi. Secara ekologis, air mendukung keberlangsungan ekosistem dan keanekaragaman hayati. Pembuangan sampah baik limbah industri, limbah rumah tangga, dan sampah yang dibuang secara langsung ke sumber air baik itu sungai atau penamoungan air seperti waduk dapat menyebabkan kerusakan sumber air dan merusak keragaman hayati. Sampah merupakan sesuatu yang dekat dengan kehidupan manusia. Dengan bertambahnya populasi dan ekonomi akan meningkatkan jumlah sampah itu sendiri. Sampah di kali mengacu pada segala jenis limbah atau material yang dibuang atau terbuang di sepanjang kali. Ini termasuk sampah-sampah seperti plastik, kertas, logam, dan bahan lainnya yang secara tidak sengaja atau disengaja dibuang ke dalam sungai oleh manusia. Kali Perumahan Harapan Citra Insani, sebuah arteri vital di tengah salah satu kabupaten Bekasi. Belakangan ini menjadi subjek perhatian serius dalam konteks lingkungan dan pengelolaan sumber daya air. Metode kegiatan yang dilakukan menggunakan observasional atau Cross Section dengan cara pengambilan data dengan Teknik sampling terhadap 25 Kepala keluarga di Perumahan Harapan Citra Insani. Hasil Pengamatan 68% tidak puas dan 32% puas Terhadap Upaya Pemerintah dalam mengatasi masalah masyarakat, 92% ada dan 8% mengatakan tidak ada melakukan kegiatan kerja bakti, 96% Berdampak dan 4% tidak Berdapak Terhadap pengelolaan sampah, 92% Tinggi dan 8% rendah dalam tingkat kesadaran masyarakat dalam melakukan kerjasama pengelolaan sampa, dan 28% banjir dan 72% menyatakan tidak banjir Ketika volume air kali/sungai di sekitar perumahan Harapan Citra Insani Meningkat.
Sustainable Biogas Development in Argosari Village: A Spatial, Environmental, and Economic Feasibility Analysis Ghefra Rizkan Gaffara; Arfilian Permana Putra; Debby Syafriyandi; Raafi Widyaputra Yulianyahya; Ansadilla Niar Sitanggang
Journal of Embedded Systems, Security and Intelligent Systems Vol 6, No 3 (2025): September 2025
Publisher : Program Studi Teknik Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jessi.v6i3.9589

Abstract

Energy transition at the village level plays a crucial role in Indonesia’s strategy toward sustainable energy independence. This research examines the biogas-based renewable energy development in Argosari Village as a model of community-driven sustainability. The study integrates qualitative and quantitative analyses—spatial, environmental, and economic—using IPCC guidelines, Location Quotient (LQ), Internal Rate of Return (IRR), and Net Present Value (NPV). The research involved interviews with 45 households, three focus group discussions with farmer associations, and secondary data from the Malang Regency Bureau of Statistics. Results show that 57% of households have installed biogas units, reducing GHG emissions by approximately 60% (1.2 tons CO₂ per household annually), and achieving a B/C ratio of 1.75. Sensitivity analysis indicates project feasibility remains positive even under ±15% variation in maintenance and subsidy levels. Comparative analysis with rural biogas programs in India and China highlights Argosari’s unique integration of social, economic, and environmental benefits. This study contributes a replicable framework for community-scale renewable energy implementation in rural Indonesia.
Development of market organic waste management through maggot cultivation Yulianyahya, Raafi Widyaputra; Septiansyah, Salsabila; Fatihah, Siti Nurul; Situmorang, Yohan Elfrido; Ramadan, Ivansya
Pengmasku Vol 6 No 1 (2026)
Publisher : PT WIM Solusi Prima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54957/pengmasku.v6i1.1979

Abstract

This community service program aimed to optimize organic waste management at Cikupa Traditional Market, Tangerang Regency, through Black Soldier Fly (BSF) maggot cultivation based on trader empowerment. The program employed participatory methods, including organic waste sorting education, technical assistance for maggot cultivation, and a pilot-scale organic waste processing trial. Quantitative data were collected from 88 market traders through questionnaires and field observations. The results showed that BSF maggot cultivation reduced organic waste volume by 50–80% within 10–14 days. Furthermore, 88% of respondents agreed that maggot cultivation effectively reduced organic waste, 91% perceived additional economic benefits from selling maggots and organic fertilizer, and 84% expressed willingness to participate in sustainable waste sorting programs. These findings indicate that BSF maggot cultivation is an effective, practical, and sustainable community-based approach to organic waste management in traditional market environments.
Analysis of the factors causing tidal flooding in Penjaringan District, North Jakarta (Muara Angke, Muara Karang, Muara Baru) Putra, Arfilian Permana; Yulianyahya, Raafi Widyaputra; Syafriyandi, Debby; Sitanggang, Ansadilla Niar; Widjaya, Christian Dwi Putra; Trialita, Rosdiana; Maulana, Ryan; Saputra, Adam Wisnu; Purnomo, Athallah Adhika Pradhana; Amelia, Fina
Pengmasku Vol 6 No 1 (2026)
Publisher : PT WIM Solusi Prima

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54957/pengmasku.v6i1.2020

Abstract

Tidal flooding is not only caused by seawater intrusion but also reflects the complexity of urban environmental problems. Contributing factors include land subsidence due to excessive groundwater extraction, inadequate drainage systems, degradation of mangrove ecosystems, and land-use changes resulting from coastal reclamation. Therefore, this study examines the recurring phenomenon of tidal flooding in the coastal areas of Penjaringan District, North Jakarta, particularly in Muara Angke, Muara Karang, and Muara Baru. This study employs a mixed-methods approach through direct field observations, in-depth interviews with residents and community leaders, and the distribution of questionnaires to 100 respondents in the affected areas. The results indicate that tidal flooding has significant impacts on the economic, social, and health aspects of the community. Daily activities are disrupted, household incomes decline, and the risk of disease increases due to poor sanitation conditions during flood events. Although communities have implemented various adaptation measures, most respondents perceive that government interventions have not been effective or equitable. This study emphasizes the importance of collaboration between the government and local communities in developing water control infrastructure, rehabilitating mangrove ecosystems, improving drainage systems, and providing education and economic assistance to enhance the resilience of coastal communities to tidal flooding.
Co-Authors Abda Abda Amelia, Fina Ansadilla Niar Sitanggang Christian Dwi Putra Widjaya Dwiana Novianti Tufail Fatihah, Siti Nurul Gaffara, Ghefra Rizkan Itsna Amaliatun Khasanah Jaka Prasetya Ken Martina Kasikoen Kurniawan, Surya Miftahul Fauziah Muhammad Hadid Nurhaidar, Wa Ode Purnomo, Athallah Adhika Pradhana Putra, Arfilian Permana Ramadan, Ivansya Rizki Budi Utomo Ryan Maulana Saputra, Adam Wisnu Sari, Dayu Ariesta Kirana Septiansyah, Salsabila Sitanggang, Ansadilla Niar Situmorang, Yohan Elfrido Syafriyandi Trialita, Rosdiana Yuyun Tri Wiranti