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All Journal Jurnal Transportasi jurnal niara RACIC : Rab Construction Research INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Syntax Literate: Jurnal Ilmiah Indonesia Rang Teknik Journal SIKLUS: Jurnal Teknik Sipil Jurnal Rekayasa Sipil Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Astonjadro Jurnal Public Policy Jurnal Ilmiah Rekayasa Sipil JESS (Journal of Education on Social Science) Construction and Material Journal Andalasian International Journal of Applied Science, Engineering, and Technology The International Journal of Politics and Sociology Research Journal of Civil Engineering and Vocational Education

Yossyafra Yossyafra

Civil Engineering Department, Faculty Of Engineering, University Of Andalas

Author-ID : 864828

Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation Other

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ASESMEN PENYEBAB KELONGSORAN LERENG DI RUAS JALAN NASIONAL BATAS SUMATERA BARAT – RIAU Deni Irda Mazni; Bayu Budi Irawan; Yossyafra Yossyafra
Rang Teknik Journal Vol 3, No 1 (2020): Vol. 3 No. 1 Januari 2020
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Bencana kelongsoran di perbatasan Sumbar Riau sudah beberapa kali terjadi, dari tahun 2006 sampai tahun 2016, terdapat 29 kali kelongsoran dan tanah amblas di lebih 80 titik kelongsoran. Banyak faktor penyebab kelongsoran, seperti tekstur tanah, kemiringan lereng, permeabilitas tanah, tingkat pelapukan batuan, kedalaman muka air tanah, curah hujan, beban gempa, dan kurangnya tumbuhan. Akibat kejadian kelongsoran (bencana longsor 3 Maret 2017), jalan banyak tertutup oleh material longsor sehingga beberapa waktu terputus rute jalan Sumbar dan Riau. Menyebabkan 7 orang meninggal dan banyaknya kerugian materil serta terputusnya perjalanan darat selama 2 hari dan menimbulkan kerugian secara ekonomi. Tujuan penelitian ini adalah menganalisa faktor penyebab kelongsoran tersebut. Metode yang dilakukan, pengumpulan data sekunder (photo udara dan peta situasi kawasan dari dokumen terdahulu), survey lapangan pengambilan photo situasi langsung, menganalisis dan mengelompokkan jenis kelongsoran, menentukan penyebab kelongsoran, dan mengklasifikasikan faktor dominan penyebab kelongsoran. Dari analisa data-data yang ada, penyebab kelongsoran ialah akibat adanya pertambangan batubara dan non logam, penebangan pohon-pohon untuk perkebunan, dan pemotongan lereng bagian atas untuk aktifitas manusia. Selain itu juga disebabkan akibat curah hujan yang cukup tinggi (3500 mm/tahun-4000mm/tahun). Di beberapa lokasi, kemiringan lereng cukup curam, yaitu dengan kemiringan 25o hingga besar dari 45o.

Persepsi Penumpang Terhadap Kinerja Layanan Operasional dan Keselamatan Bus Rapid Transit-Trans Siginjai Jambi Ade Marnilawati; Yossyafra Yossyafra; Bayu Martanto Adji
Rang Teknik Journal Vol 3, No 1 (2020): Vol. 3 No. 1 Januari 2020
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Kinerja Layanan Bus Rapid Transit (BRT)

ANALISIS FAKTOR PENYEBAB REWORK PADA PEKERJAAN KONTRUKSI JALAN KOTA PADANG Dewi Puspa; Yossyafra Yossyafra; Yosritzal Yosritzal
Rang Teknik Journal Vol 5, No 2 (2022): Vol. 5 No. 2 Juni 2022
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Rework is a repeat job that is caused by an error from a construction project. In a construction activity almost always happens rework only the quantity is different. The purpose of this study is identify the factors that cause rework, identify the conditions of rework, identify the intensity of rework on road construction work item in the city of Padang. This study uses qualitative methods with a descriptive approach. The result of the study are the main factors that led to road construction rework in Padang city were design and documentation, managerial factor and resources. Little rework conditions occur in road construction work in the city of Padang. The intensity of work items the occur on average rework is rare. Keywords: Rework, Construction project, identification.

Changes in community behavior post provision sanitation facilities in settlement area Padang Barat District Vivi Handayani; Denny Helard; Yossyafra Yossyafra
The International Journal of Politics and Sociology Research Vol. 10 No. 3 (2022): December: Politic and Sosiology
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar

West Padang sub-district is a sub-district that has tourism potential, because in this sub-district there is a tourist attraction Puruih beach or what is known as Padang beach. As a tourist area, this sub-district still has problems with the availability of toilets and inadequate sanitation, as well as the habits of the people who still use the coast as a place to defecate. This habit will certainly cause new health problems later if you continue to let it. In addition, there are also many people who do not have their own MCK at home, and are forced to use public MCK for bathing and defecating and urinating. However, currently there are very few public toilet facilities in this area and if they do exist they are in a dilapidated condition. Added to this is the behavior of the surrounding community who do not take care of the public MCK facilities that have previously been built. In this study, researchers wanted to see changes in people's behavior after sanitation facilities were built in their area. Are they going to maintain the facilities that have been provided or are they the same as before, let the facilities be abandoned as before.

Residential satisfaction analysis of developer products Ari Septayuda; Yossyafra Yossyafra; Benny Hidayat
The International Journal of Politics and Sociology Research Vol. 10 No. 3 (2022): December: Politic and Sosiology
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar

In housing with the type of commercial house, a CSI value of 78.80% is obtained, meaning that the residents of the housing are satisfied with the developer's product. The results of the analysis of the ISA method, there are 5 attributes that are a priority for improvement/improvement, namely (1) drainage system; (2) Quality of the roof, ceiling of the house; (3) Quality of house walls; (4) The quality of the floor of the house; (5) The quality of the frames, doors and windows of the house. In public housing, the CSI value is 64.25%, meaning that residents of the housing are quite satisfied with the developer's product. The results of the analysis of the ISA method. there are 8 attributes that are a priority for improvement/improvement, namely (1) Quality of sills, doors, windows of the house; (2) Provision of green open space; (3) Quality of house walls; (4) drainage system; (5) The quality of the floor of the house; (6)Public transportation at residential locations; (7) Residential environment security services; (8) The quality of the roof, the ceiling of the house.

PERENCANAAN SPESIFIKASI TEKNIS RUAS JALAN PROVINSI UNGGAN (KABUPATEN SIJUNJUNG)-PAMUSIAN (KABUPATEN TANAH DATAR) Bayu Budi Irawan; Yossyafra Yossyafra; Darwizal Daoed
Racic : Rab Construction Research Vol 7 No 2 (2022): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v7i2.2805

The Unggan-Pamusian road is a road that connects Sijunjung and Tanah Datar Regencies. The West Sumatra Provincial Government intends to carry out the construction of the road segment. The purpose of this research is to plan the technical specifications for provincial roads, identify traffic conditions, forecast average daily traffic and plan the pavement thickness design. The method used is the Road Geometric Design Guidelines Number 13/P/BM/2021. The results of the technical planning specifications for provincial roads are adjusted to the standards. The traffic condition of the Unggan-Pamusian road segment is classified as low traffic with a description of the early stages of local roads and can be upgraded to collector roads. Forecasting results obtained average daily traffic of 3,166 vehicles (2021) and 7,482 vehicles (2046). Type of AC pavement with a thickness of AC-WC 40 mm, AC-BC4 60 mm, AC-BC or AC-Base 75 mm, CTB3 150 mm and class A aggregate foundation 150 mm.

The Social and Political Factors on the Decision-Making Process in Land Acquisition for Sicincin-Padang Toll Road Construction, West Sumatera Nora Eka Putri; Helmi Helmi; Melinda Noer; Yossyafra Yossyafra
Journal of Education on Social Science (JESS) Vol 7 No 1 (2023): SOCIAL AND POLITICAL ISSUES IN DIGITAL ERA
Publisher : Faculty of Social Science, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jess.v7i1.461

Land acquisition for the construction of toll roads is a key component of growth, however property acquisition has run into challenges. One of these challenges is that there hasn't been an adequate amount of community involvement and social and political studies of the impacted communities, which puts the community at risk while also impeding the efficient building of toll roads. With the use of the variables of community culture, political will, land governance, and community involvement in the decision-making process, this study tries to explain the elements that affect the decision-making process in land acquisition planning. The research strategy is a quantitative. 325 respondents completed questionnaires distributed to the impacted neighborhoods, which were used to gather research data. The data was then analyzed using structural equation models (Structural Equation Models) utilizing the AMOS application and the Sobel test. According to the study's findings, the decision-making process was significantly influenced by community culture, political will, and land governance. In light of community cultural characteristics such as political will, land governance, and community involvement, the study's conclusion shows that a model for land acquisition policy decision-making exists.

Sudut Sudut Kelongsoran Tanah Pasir di Belakang Dinding Penahan Tanah Segmental Mazni, Deni Irda; Hakam, Abdul; Tanjung, Jafril; Ismail, Febrin Anas; Yossyafra, Yossyafra
Siklus : Jurnal Teknik Sipil Vol. 9 No. 2 (2023): Siklus: Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/siklus.v9i2.15869

Dinding penahan tanah (DPT) dibangun untuk mengatasi kelongsoran. Salah satu konstruksi DPT yang sering dipakai adalah DPT segmental atau Segmental Retaining Wall (SRW) yang terdiri dari 2 tipe yaitu SRW gravity dan SRW reinforced. SRW gravity merupakan DPT yang mengandalkan berat sendiri strukturnya. SRW reinforced memakai geosintetik untuk perkuatan terhadap kestabilan dindingnya. Selama ini, analisis kestabilan SRW gravity selalu dianggap seperti DPT monolit. Selain metode analisis yang dianggap sama, pola kelongsoran tanah yang terjadi di belakang SRW juga dianggap sama, sehingga sudut kelongsoran tanah (a) uji laboratorium yang terjadi sama dengan sudut kelongsoran metoda Rankine (q=45o+f/2). Penelitian skala laboratorium dilakukan dengan beberapa skenario balok-balok SRW serta pemberian tanah pasir dan pembebanan merata (statis) di belakang SRW. Pola kelongsoran tiap skenario SRW direkam untuk mengamati sudut kelongsoran. Pola kelongsoran yang terjadi membentuk kurva S dengan persamaan fungsi polinomial pangkat tiga. Berdasarkan pengamatan terhadap beberapa skenario SRW, terlihat bahwa besar sudut kelongsoran (a) yang terjadi di dasar kurva kelongsoran sama dengan sudut geser dalam tanah pasir (f) tersebut.

KEANDALAN DAN RISIKO KENDARAAN LISTRIK MENURUT PERSEPSI PENGGUNA Rahmatika Dwi Putri Jori; Purnawan; Yossyafra
Jurnal Transportasi Vol. 24 No. 1 (2024): Jurnal Transportasi
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jtrans.v24i1.7650.86-100

Percepatan pertumbuhan kendaraan listrik di Indonesia terus dilakukan, namun banyak pernyataan pro kontra dikalangan masyarakat mengenai keandalan dan risiko kendaraan listrik di Indonesia. Untuk itu perlu dilakukannya survey analisa keandalan dan risiko yang dimiliki oleh mobil dan motor listrik. Pertanyaan survey disusun dengan analisa konten yang disebar kepada pengguna kendaraan listrik di Indonsia. Hasil yang didapatkan diolah dengan metode analisa faktor sehingga diperoleh faktor exterior dan performance berpengaruh terhadap keandalan mobil listrik berbeda dengan sepeda motor listrik keandalan dipengaruhi oleh tiga faktor yaitu exterior, safety dan performance. Selanjutnya untuk risiko mobil listrik sendiri dipengaruhi oleh dua faktor yaitu pengisian daya kendaraan dan dampak lingkungan sedangkan untuk sepeda motor listrik hanya dipengaruhi oleh satu faktor saja yaitu dampak lingkungan

Evaluasi Implementasi Kebijakan Tata Ruang Kawasan Perumahan Dan Permukiman Di Kota Padang Panjang Donal Catria; Melinda Noer; Yossyafra
Jurnal Niara Vol. 17 No. 1 (2024): Mei
Publisher : FAKULTAS ILMU ADMINISTRASI UNIVERSITAS LANCANG KUNING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/niara.v17i1.19880

Penelitian bertujuan untuk mengidentifikasi pelanggaran penataan ruang yang terjadi sekaligus untuk mengetahui faktor-faktor penyebab terjadinya pelanggaran sehingga dapat merumuskan masukan perbaikan terhadap implementasi kebijakan penataan ruang pada kawasan perumahan dan permukiman di Kota Padang Panjang. Analisis data dilakukan dengan superimpose/ overlay peta pola ruang dengan peta sebaran bangunan yang ada di Kota Padang Panjang, didapatkan jumlah bangunan yang melanggar sebanyak 1732 unit bangunan (10,68 % dari total jumlah bangunan yang ada ). Berdasarkan hasil kuesioner dan wawancara dengan masyarakat dan petugas pelaksana penyelenggaran penatan ruang. Dari hasil pengolahan data , dari variabel yang diukur yakni komunikasi, sumber daya, disposisi dan birokrasi didapatkan faktor birokrasi merupakan variabel paling signifikan berpengaruh terhadap pelanggaran penataan ruang di Kota Padang Panjang. Untuk selanjutnya denga mengunakan analisi SWOT dirumuskan strategi untuk memperbaiki implementasi kebijakan penataan ruang sebagai berikut, meningkatkan kualitas perencanaan dan kebijakan penataan ruang Kota Padang Panjang, meningkatkan pemahaman dan komitmen pengambil kebijakan terhadap penyelenggaraan tata ruang dan meningkatan sosialisasi berbasis digital

Co-Authors AA Sudharmawan, AA Abdul Hakam Ade Marnilawati Agenta, Veiga Mustika Amirna, Rahimmah Ari Septayuda Bayu Budi Irawan Bayu Martanto Adji, Bayu Martanto Benny Hidayat Chairi, Maiyozzi Cut Dona Kordelia Daoed, Darwizal Denny Helard Dewi Puspa Donal Catria Elsa Eka Putri Endri Endri Febrin Anas Ismail Fitra Rifwan Ghalib, Kenny Gunawan, Hendra Gusman, Gusman Helmi Helmi Helmi Helmi Jafril Tanjung, Jafril Jayawarsa, A.A. Ketut Kurniati, Titi Lusi Dwi Putri, Lusi Dwi Maiyozzi Chairi Mazni, Deni Irda Melinda Noer Momon Momon Nora Eka Putri Nurul Adhaini Oktaviani oktaviani Prices, Afrizal Putra Purnawan Purnawan Purnawan Putri Jori, Rahmatika Dwi Rahendra, Muhazir Rahmad Aulia Nahar Sari, Adria Sasmita, Dessi Satria, Fachrian Susumaningsih, Endang Thamrin , Rendy Titi Kurniati Vivi Handayani Yosritzal , Yosritzal Yosritzal, Yosritzal Yusmarizal, Yusmarizal

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