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All Journal Jurnal Teknik Sipil Jurnal Transportasi Jurnal Teknologi Warta Ardhia : Jurnal Perhubungan Udara Daengku: Journal of Humanities and Social Sciences Innovation Majalah Teknik Simes
Sefrus, Tri
Universitas Prof. Dr. Hazairin, SH
Aerospace Engineering Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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ANALISIS AWAL PERMASALAHAN TRANSPORTASI UDARA DAN ARAH PENGEMBANGAN BANDARA DI INDONESIA Sefrus, Tri; ., Dewanti; Priyanto, Sigit; Irawan, Muhammad Zudhy
Jurnal Transportasi Vol 17, No 3 (2017)
Publisher : Jurnal Transportasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.354 KB) | DOI: 10.26593/jt.v17i3.2872.%p

Abstract

Abstract Demand of air passenger numbers in Indonesia has been increasing since the last decade, reaching 15% per year. The high number of these demand has a negative impact on the aviation world in Indonesia. Aircraft queue on landing, delayed departure time, inconvenience of passengers, and high accident risk are negatives which of course require early handling for long term. This study to explore the problems related to aviation in Indonesia, so that got the root of the most influential to the current aviation dilemma of Indonesia and its proper development direction. This study used data 26 major airports in Indonesia as a case study. The results show that the air transport problems that occur are influenced by three things: high passenger growth, limited airport capacity, and the dominance of indirect flight. And the right direction of airport development to be done is the development of integrated flight routes. Keywords: growth of passengers, airport development, flight route, airport capacity  Abstrak Permintaan jumlah penumpang angkutan udara di Indonesia terus mengalami peningkatan semenjak satu dekade terakhir, yang mencapai angka 15% per tahun. Tingginya jumlah permintaan ini ikut memberikan dampak negatif terhadap dunia penerbangan di Indonesia. Antrian pesawat udara saat mendarat, tertundanya waktu keberangkatan, ketidaknyamanan penumpang, dan risiko kecelakaan yang tinggi merupakan hal negatif yang membutuhkan penanganan dini untuk jangka panjang. Penelitian ini dilakukan untuk menggali perma-salahan terkait angkutan udara di Indonesia, sehingga didapat akar masalah yang paling berpengaruh terhadap penerbangan Indonesia saat ini dan arah pengembangannya. Pada penelitian ini digunakan data 26 bandara utama di Indonesia sebagai studi kasusnya. Hasil penelitian memperlihatkan bahwa permasalahan angkutan udara yang terjadi dipengaruhi oleh tiga hal, yaitu pertumbuhan penumpang yang tinggi, keterba-tasan kapasitas bandara, dan dominannya rute penerbangan yang tidak langsung. Arah pengembangan bandara yang tepat untuk dilakukan adalah melalui pengembangan rute penerbangan yang terintegrasi. Kata-kata kunci: pertumbuhan penumpang, pengembangan bandara, rute penerbangan, kapasitas bandara
Public Transport Performance Based on the Potential Demand and Service Area (Case Study : Jakarta Public Transport) Muttaqin, Muchammad Zaenal; Herwangi, Yori; Susetyo, Cahyono; Sefrus, Tri; Subair, Muhammad
Daengku: Journal of Humanities and Social Sciences Innovation Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.538 KB) | DOI: 10.35877/454RI.daengku367

Abstract

The effectiveness and efficiency of public transport should be a priority for transportation in developing cities. Despite the efforts from the government to improve public transportation, in Jakarta City, Indonesia, there is still 9.93% increase of private vehicles annually per year. In detail, contributor for increasing vehicles in Jakarta is motorcycles with an average annual increase of 10.54% every year, followed by an increase in the percentage of passenger cars by 8.75%. In contrast, the number of public transportation increased only by 1.74%. This research did the evaluation for public transport service in Jakarta by availability and accessibility for them. Neighborhood analysis and Proximity analysis used in this research. The results of the research showed that major problems in public transportations in Jakarta City are the coverage area of the service, route connectivity, and its accessibility for public facilities. There are only 7.78% for coverage area by flexible bus stop service with average walking distance by 300 m. Thus, there are some areas that are not passed by public transport routes, for about 18.5 million people live in blank spot area.
ANALISIS AWAL PERMASALAHAN TRANSPORTASI UDARA DAN ARAH PENGEMBANGAN BANDARA DI INDONESIA Tri Sefrus; Dewanti .; Sigit Priyanto; Muhammad Zudhy Irawan
Jurnal Transportasi Vol. 17 No. 3 (2017)
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.354 KB) | DOI: 10.26593/jtrans.v17i3.2872.%p

Abstract

Abstract Demand of air passenger numbers in Indonesia has been increasing since the last decade, reaching 15% per year. The high number of these demand has a negative impact on the aviation world in Indonesia. Aircraft queue on landing, delayed departure time, inconvenience of passengers, and high accident risk are negatives which of course require early handling for long term. This study to explore the problems related to aviation in Indonesia, so that got the root of the most influential to the current aviation dilemma of Indonesia and its proper development direction. This study used data 26 major airports in Indonesia as a case study. The results show that the air transport problems that occur are influenced by three things: high passenger growth, limited airport capacity, and the dominance of indirect flight. And the right direction of airport development to be done is the development of integrated flight routes. Keywords: growth of passengers, airport development, flight route, airport capacity  Abstrak Permintaan jumlah penumpang angkutan udara di Indonesia terus mengalami peningkatan semenjak satu dekade terakhir, yang mencapai angka 15% per tahun. Tingginya jumlah permintaan ini ikut memberikan dampak negatif terhadap dunia penerbangan di Indonesia. Antrian pesawat udara saat mendarat, tertundanya waktu keberangkatan, ketidaknyamanan penumpang, dan risiko kecelakaan yang tinggi merupakan hal negatif yang membutuhkan penanganan dini untuk jangka panjang. Penelitian ini dilakukan untuk menggali perma-salahan terkait angkutan udara di Indonesia, sehingga didapat akar masalah yang paling berpengaruh terhadap penerbangan Indonesia saat ini dan arah pengembangannya. Pada penelitian ini digunakan data 26 bandara utama di Indonesia sebagai studi kasusnya. Hasil penelitian memperlihatkan bahwa permasalahan angkutan udara yang terjadi dipengaruhi oleh tiga hal, yaitu pertumbuhan penumpang yang tinggi, keterba-tasan kapasitas bandara, dan dominannya rute penerbangan yang tidak langsung. Arah pengembangan bandara yang tepat untuk dilakukan adalah melalui pengembangan rute penerbangan yang terintegrasi. Kata-kata kunci: pertumbuhan penumpang, pengembangan bandara, rute penerbangan, kapasitas bandara
Public Transport Performance Based on the Potential Demand and Service Area (Case Study : Jakarta Public Transport) Muchammad Zaenal Muttaqin; Yori Herwangi; Cahyono Susetyo; Tri Sefrus; Muhammad Subair
Daengku: Journal of Humanities and Social Sciences Innovation Vol. 1 No. 1 (2021)
Publisher : Lembaga Penelitian dan Pengembangan Teknologi dan Rekayasa, Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.538 KB) | DOI: 10.35877/454RI.daengku367

Abstract

The effectiveness and efficiency of public transport should be a priority for transportation in developing cities. Despite the efforts from the government to improve public transportation, in Jakarta City, Indonesia, there is still 9.93% increase of private vehicles annually per year. In detail, contributor for increasing vehicles in Jakarta is motorcycles with an average annual increase of 10.54% every year, followed by an increase in the percentage of passenger cars by 8.75%. In contrast, the number of public transportation increased only by 1.74%. This research did the evaluation for public transport service in Jakarta by availability and accessibility for them. Neighborhood analysis and Proximity analysis used in this research. The results of the research showed that major problems in public transportations in Jakarta City are the coverage area of the service, route connectivity, and its accessibility for public facilities. There are only 7.78% for coverage area by flexible bus stop service with average walking distance by 300 m. Thus, there are some areas that are not passed by public transport routes, for about 18.5 million people live in blank spot area.
Estimasi Demand Angkutan Barang Shortcut Padang – Solok dari Peralihan Moda Truk ke Kereta Api Sebagai Bahan Pertimbangan Proyek Kerjasama Pemerintah Swasta (KPS) Tri Sefrus
MAJALAH TEKNIK SIMES Vol 9 No 2 (2015): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1087.768 KB)

Abstract

Commodity movement area of Jambi, Riau and West Sumatra eastern part transported by road transport with the same line, namely Padang - Solok. The transport flow reached 8158 vehicles with payloads reached 2,338,834 tons per year (Department of Communication and Information, 2011). The traffic flow is causing congestion and road damage. To that end, it is necessary to limit the load of freight trucks. One of them with modal shifts to rail. And one of the technical aspects to be considered, is taking into account the number of requests (estimated demand) in the long term. Estimates of origin destination matrix made by the method of Gravity types without limitation, by using secondary data from the Department of Transportation West Sumatra Province. From the estimation, predictable amount of freight that passes through Padang - Solok in 2015 amounted to 2.29512 million tons with a growth rate of 1.52% per year. So predictable amount of freight in 2040 amounted to 3.34632 million tons / year.
ANALISA PENAMBAHAN GETAH DAMAR BATU (AGATHIS ALBA) PADA CAMPURAN ASPHALT CONCRETE-BINDER COURSE (AC-BC) Tri Sefrus
MAJALAH TEKNIK SIMES Vol 7 No 1 (2013): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1394.567 KB)

Abstract

Research on the analysis of the resin stone resin on the concrete asphalt-binder course mixture (AC-BC) is motivated by resin vibration with asphalt, ie high viscosity and strong bonding power among particles and resin content in resin gum. Therefore, it is necessary to find out the effect of sap damar stone 0%; 1.5%; 2.5% and 3.5% of asphalt content on marshall characteristics in AC-BC samples. The method used is laboratory study with Marshall test equipment. The test was done with 24 hours fresh water immersion and waterbath 60 oC for 30 minutes. The results after Kao reflect a direct proportion of freedom relative to the addition of resin sap, which is 1663 kg; 1914 kg; 1961 kg and 2040 kg. Similarly, the VFA (67,046; 68,251; 73,115 and 74,397) and the marshall quota (457; 590; 589 and 658). In contrast to stability, the actual VMA is inversely proportional (5,766; 15,530; 14,642 and 14,43) and the melt is changed parabolically (3.64 mm; 3.83 mm; 3.33 mm and 3.10 mm) and the VIM b is unstable (3,828; 4,201; 3,741 and 3,911) respectively. These conditions make it possible to get the right price to compare AC-BC, and the optimal percentage at the time of resin of 3.5%
Studi Kebutuhan Instalasi Pengolahan Air Limbah (Ipal) Tempat Pembuangan Akhir Sampah Dengan Geomembrane Kota Bengkulu Oscar Hidayat; Tri Sefrus; Meilani Belladona
MAJALAH TEKNIK SIMES Vol 15 No 2 (2021): Juli 2021
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (844.439 KB) | DOI: 10.32663/simes.v15i2.2072

Abstract

Based data from Bengkulu Environmental centre in 2019, it is known that the volume of waste for Bengkulu city residents per day reaches 373.07 m3/day. The amount of water that enters the Air Sebakul TPA causes leachate to collect quickly and then moves to dissolve into the ground. The absence of waste water treatment plant at this landfill causes contamination of surface water and ground water. Especially when it rains, the leachate will flow into the drainage channels of residents around the TPA which causes an unpleasant odor. The purpose of this research ia to determine the ned for WWTP (waste water treatment plant) at the Air Sebakul TPA Bengkulu by using geomembrane layer. The method of the study uses a survey method with forecasting using geometric formulas and mononobe while the data validation test uses a tracking signal approach.The results of this study show that the prediction of the Bengkulu city waste heap and leachate discharge for the next five years is 792.746,35 (m3/year) or 9.972 m3/day. Based on the current land capacity which has an area of + 30.000 m2, The air Sebakul TPA is declared capable of accommodating waste for the next years. While the planning for the next ten years with waste generation reaching 1.728.810, 26 (m3)/year is declared unable to accommodate waste.Therefore, a large-scale land expansion is needed from the existing land availability, as well as a larger IPAL storage capacity.
Studi Pengembangan Rute Penerbangan Terintegrasi Di Indonesia Tri Sefrus
MAJALAH TEKNIK SIMES Vol 14 No 2 (2020): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

Abstract Air passenger demand in Indonesia has continued to increase since the last decade. According to IATA Indonesia will become the world’s six largest airline travel market by 2034. One of the impacts that is currently felt is the high flight delay. The efforts that have been carried out so far in anticipation of increasing the number of passengers and airport overcapacity are through the development of existing airports; both terminal expansion and runway upgrades. In fact, physical development can not be carried out continuous airport development alternative through integrated flight routes.
The ANALISIS TINGKAT PELAYANAN PENYEBERANGAN KAPAL FERRY BENGKULU- ENGGANO : (Studi Kasus : PT ASDP Indonesia Ferry (Persero) Cabang Provinsi Bengkulu) Cristy Pujianti andriyani; Edito Dwi Antoro; Tri Sefrus
Jurnal Teknik Sipil Vol. 17 No. 1 (2022)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/jts.v17i1.5456

Abstract

Sebagai moda transportasi utama antar pulau di Bengkulu, maka dibutuhkan pelayanan dan fasilitas penunjang yang baik, untuk menciptakan keadaan aman dan nyaman bagi pengguna jasa. Penelitian ini bertujuan untuk mengetahui pelayanan dan fasilitas yang diberikan PT ASDP Indonesia Ferry (Persero) Cabang Provinsi Bengkulu berdasarkan kepuasan penumpang. Analisis dilakukan dengan metode Importance and Performance Analysis (IPA) dan Customer Satisfaction Index (CSI), yang kemudian diolah menggunakan aplikasi SPSS 21. Dari metode Importance and Performance Analysis (IPA) didapatkan nilai kepuasan penumpang (X) rata-rata sebesar 45,25 dan nilai harapan (Y) sebesar 54,73. Hal ini menunjukkan bahwa lebih besar harapan dari pada kepuasan penumpang. Artinya, pelayanan perusahaan harus lebih ditingkatkan lagi . Beberapa faktor yang prioritas untuk diperbaiki yaitu kondisi jalan akses ke pelabuhan, lampu penerangan, daya tampung kapal/luas parkir di dalam kapal, ketepatan jadwal keberangkatan, jarak dan ketersediaan angkutan umum dari pelabuhan, serta kesesuaian tarif angkut kendaraan dan barang.  Sedangkan dengan metode Customer Satisfaction Index (CSI), didapatkan nilai sebesar 7,3%. Nilai ini berada pada rentang nilai 0,66-0,80;  yang berarti bahwa konsumen merasa puas secara keseluruhan terhadap pelayanan yang diberikan. Disarankan bahwa perusahaan harus lebih meningkatkan lagi pelayanan untuk memaksimalkan tingkat kepuasan kosumen terhadap perusahaan.
Studi Karang Mati Sebagai Pengganti Agregat Kasar Pada Adukan Beton Hendy Ramadana Putra; Tri Sefrus
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

In this area Kaur is an area located in the southern coastel area of Bengkulu Province,The main problem of this research is that there are many dead corals that are not utilized by the surrounding population. The purpose of this research is the number of dead corals, so that they only become coastel waste. The method used is a laboratory test that is guided by SNI 03-1969-1990. Based on the results of the compressive strength of concrete it is known that the coarse agregate of dead coral used is a mixture of 60%. The study used the composition of 1 cement, 1.6 sand, 2.5 coral in the composition of concrete. The results show that the concrete is 60% more improved than the other concretes.
Co-Authors Aprizon, Windra Belladona, Meilani Cristy Pujianti andriyani Dewanti . Dewanti ., Dewanti Edito Dwi Antoro Hendy Ramadana Putra Jhordi Hendarwan Muchammad Zaenal Muttaqin Muhammad Subair Muhammad Zudhy Irawan, Muhammad Zudhy Muttaqin, Muchammad Zaenal Oscar Hidayat Pujiastuti, Elly Tri Sigit Priyanto Sigit Priyanto Subair, Muhammad Susetyo, Cahyono Yoggi Hendra Safutra Yori Herwangi, Yori