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Simanjuntak, Johan Oberlyn
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ANALISIS TARIF ANGKUTAN UMUM BERDASARKAN BIAYA OPERASIONAL KENDARAAN, ABILITY TO PAY DAN WILLINGNESS TO PAY Simanjuntak, Johan Oberlyn; Simanjuntak, Nurvita Insani; H, Sonnya Cindy
JURNAL DARMA AGUNG Vol 32 No 1 (2024): FEBUARI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v32i1.4186

Abstract

Tarif angkutan umum yang tinggi terkadang menjadi pemicu pelaku perjalanan enggan untuk menggunakan angkutan umum jika perjalanan yang dilakukan secara terus-menerus. Namun di lain pihak pembebanan tarif juga tidak menjadi tanggungjawab oleh penyedia jasa. Tarif yang ditetapkan oleh penyedia jasa harus dapat memenuhi besaran biaya operasional yang dikeluarkan sehingga baik pengguna ataupun penyedia jasa merasa diuntungkan oleh penggunaan angkutan umum. Tujuan yang ingin dicapai dari penelitian ini adalah untuk mengetahui besarana Biaya Operasional Kendaraan (BOK) kemudian dibandingkan dengan nilai Ability To Pay (ATP) dan Willingness To Pay (WTP) responden sebagai pengguna angkutan umum. Adapun subjek dalam penelitian ini adalah dua moda angkutan umum yaitu Koperasi Bintang Tapanuli (KBT) dan Kevin Pratama Transport (KPT) dengan Trayek Medan – Tarutung. Kedua moda angkutan ini dengan rute yang sama yaitu sepanjang 282 km dengan tujuan yang sama namun tarif yang berbeda. Hasil penelitian didapatkan bahwa untuk pengguna kedua moda tersebut nilai ATP lebih kecil dari nilai WTP berarti bahwa utilitas yang dirasakan pengguna lebih besar dibandingkan dengan jumlah penghasilan. Hal ini dimungkinkan karena jam keberangkatan kedua moda dinilai cukup sering sehingga pengguna merasa tidak merasa sulit untuk mendapatkan moda angkutan. Sehingga tarif berlaku dianggap telah sesuai dengan fungsi yang didapatkan oleh pengguna angkutan.
KERUSAKAN JALAN YANG BERIMBAS PADA LINGKUNGAN DAN PENGGUNA (PEMAKAI) JALAN RAYA DILOKASI JALAN VETERAN, HELVETIA, MEDAN Simanjuntak, Johan Oberlyn; Suita, Diana; Hasibuan, M. Husni Malik; Simanjuntak, Nurvita Insani M.; Halawa, Wilhelmus Reformasi
JURNAL DARMA AGUNG Vol 31 No 3 (2023): JUNI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Darma Agung (LPPM_UDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46930/ojsuda.v31i3.3354

Abstract

Medan adalah kota terbesar ketiga dari Indonesia dan merupakan kota yang berkembang pesat di Provinsi Sumatera Utara. Seiring pertumbuhan penduduk yang meningkat dan juga ekonomi yang juga meningkat, maka mengakibatkan bertambahnya kepadatan lalu lintas karena penduduk akan melakukan perjalanan A ─ T (asal dan tujuan ) dari satu kota ke kota lainnya. Dengan banyaknya industry-industri, plaza (mall), kantor-kantor, maka semakin meningkatnya kendaraan dijalan raya. Adapun penelitian ini adalah mengetahui efek kerusakan jalan yang berimbas pada lingkungan dan pemakai jalan (pengguna jalan) dan ini menjadi responden pada penelitian ini. Kuisioner penelitian ini yang dilaksanakan kepada responden pengguna jalan (pemakai) yang bertujuan mengetahui pandangan responden pengguna jalan dan pelaksanaan kuesioner ini dilaksanakan oleh peneliti. Analisisnya yaitu antara lain : parameter kecelakaan kendaraan dengan hasil skor 4 (sangat berpengaruh ) diperoleh 30%, skor 3 (berpengaruh ), diperoleh 40%, skor 2 (cukup berpengaruh ) diperoleh 20%, tidak berpengaruh (skor 1) sebanyak 10%, Hasil analisis parameter pemakaian bahan bakar diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 17,5%, skor 3 (berpengaruh ) sebanyak 30%, skor 2 (cukup berpengaruh ) sebanyak 40%, skor 1 (tidak berpengaruh ) sebanyak 12,5%, Hasil analisis parameter kelengkapan rambu lalu lintas diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 20%, skor 3 (berpengaruh ) sebanyak 25%, skor 2 (cukup berpengaruh ) sebanyak 35%, skor 1 (tidak berpengaruh ) sebanyak 20%, Hasil analisis parameter efektivitas perjalanan diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 35%, skor 3 (berpengaruh ) sebanyak 45%, skor 2 (cukup berpengaruh ) sebanyak 20%, skor 1 (tidak berpengaruh ) sebanyak 0%, Hasil analisis parameter perlambatan laju kendaraan diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 27,5%, skor 3 (berpengaruh ) sebanyak 40%, skor 2 (cukup berpengaruh ) sebanyak 20%, skor 1 (tidak berpengaruh ) sebanyak 12,5%, Hasil analisis parameter perawatan kendaraan didapatkan hasil skor 4 (sangat berpengaruh ) sebanyak 30%, skor 3 (berpengaruh ) sebanyak 15%, skor 2 (cukup berpengaruh ) sebanyak 27,5%, skor 1 (tidak berpengaruh ) sebanyak 27,5%, Hasil analisis parameter pencemaraan udara diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 40%, skor 3 (berpengaruh ) sebanyak 32,5%, skor 2 (cukup berpengaruh ) sebanyak 25%, skor 1 (tidak berpengaruh ) sebanyak 2,5%, Hasil analisis parameter guncangan yang berlebihan diperoleh hasil skor 4 (sangat berpengaruh ) sebanyak 42,5%, skor 3 (berpengaruh ) sebanyak 35%, skor 2 (cukup berpengaruh ) sebanyak 17,5%, skor 1 (tidak berpengaruh ) sebanyak 5%.
Soil investigation dutch penetration test implementation of North Sumatra Polda Flat Houses Suita, Diana; Simanjuntak, Johan Oberlyn; Lubis, Muhammad Yusuf Parlagutan; Simorangkir, Simon Petrus
Jurnal VORTEKS Vol. 5 No. 2 (2024): October 2024
Publisher : Program Studi Teknik mesin, Fakultas Teknik, Universitas Al Azhar Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54123/vorteks.v5i2.390

Abstract

From the results of drilling tests with machine drills, standard penetration tests (SPT), and DCPT or sondir tests, several conclusions can be taken as follows: 1). The results of boring tests show that the soil layer has medium soil consistency at a depth of 0 - 9.85 meters with NSPT value 10 – 30. 2). The soil layer consists of sandy clay, fine sand pumice stone, and fine sand. 3). Test results for the depth of solid soil at a depth of 18.6 – 19.00 meters. 4. The cone tip resistance at point S-01 is 200 kg/cm2 and S-02 is 173 kg/cm2 5). Calculation of the vertical Bearing Capacity (Qi) of the pile foundation from SPT data using a safety factor for tip penetration resistance = 3, for sticky resistance used = 5. 6). For large construction loads using deep foundations, it is necessary to check to a depth of > 10 meters or attain NSPT 60 in a row 3 times
BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN MEMANFAATKAN LIMBAH TONGKOL JAGUNG (Penelitian Laboratorium) Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Lumban Gaol, Belinauli Teknika
Jurnal Visi Eksakta Vol. 1 No. 1 (2020): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1067.439 KB) | DOI: 10.51622/eksakta.v1i1.53

Abstract

The need for housing is more higher along with the times and this is also a factor to increasing for concrete needed for building development. The more concrete that is produced, the more cement is needed for construction.Concrete is a composite material (mixture) of several materials, the main ingredient which consists of a mixture of cement, fine aggregate, coarse aggregate, water and or without other additives with a certain ratio. Utilization of waste carried out in this study is to utilize corn cobs waste which is commonly found in the outskirts of the city of Medan. By utilizing this waste, it is hoped that it can reduce the accumulation of corn agricultural waste and also increase public insight about how to treat corn cobs waste into other forms. In this study, a concrete trial was carried out by adding corn cobs ash waste to concrete which aims to find out whether corn cobs ash can increase the compressive strength of concrete with variations in the percentage of the mixture of 0%, 3%, 6%, and 9% of the cement weight. The compressive strength value of normal concrete (25.45MPa), while with the substitution of corn cob ash 3% (21.96 MPa), 6% (18.56MPa), and 9% (16.45MPa). So it can be concluded that the resulting compressive strength exceeds the planned compressive strength and the optimum substitution value of corn cobs varian is at the 3% variant, namely 21.96 MPa.
HUBUNGAN TANAH DASAR TERHADAP PERKERASAN LENTUR (FLEXIBLE PAVEMENT) JALAN RAYA Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Simanjuntak, Salomo; Sipayung, Triwani
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (451.061 KB)

Abstract

The road is one of the important infrastructure in supportmobility of community activities. Based on the type of pavement can be dividedinto 3, namely flexible pavement, rigid pavement, and composite pavements. Construction problemsthe road is the subgrade and its compaction work. In this research leadsto the relationship of subgrade to flexible pavement. On flexible pavement there is a 3-layer structure, namely suface, base andsub-base. The thick structure of the flexible pavement layer is severely hampered by subgrade.In this Final Project, the analysis was carried out on 3 variations of CBR, namely 6%, 10%, and15% and compared to 2 variations of the material in the top foundation layer (LPA)and sub-base layer (LPB) and 2 variations of methods, namely the Bina Marga method andAASHTO. From the evaluation results with CBR variations, material variations and variationsmethod, obtained the results of the thickness of the pavement with CBR variations that are getting biggerCBR value, the smaller the thickness of the pavement layer, if seen from the variationthe material the lower the material quality, the thicker the pavement layer, and if it is seen from the variation of the method which is the most accurate and suitable to be appliedIndonesia is the DGH method. Then it can be denied that the subgrade andmaterial greatly affects the thickness of the flexible pavement layer.
Persepsi Pejalan Kaki Terhadap Trotoar Di Lapangan Merdeka Kota Medan Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Simanjuntak, Nurvita Insani M.; Laoli, Titusman Berkat
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (653.948 KB) | DOI: 10.51622/eksakta.v2i2.336

Abstract

Merdeka Square is one of the icons of Medan City which is continously visited by communities of Medan City or immigrant communities because Medan City is the capital of North Sumatera Province with a high complexity of activities in it. Improvements to the road transportation system facilities, especially sidewalk facilites, are important because the purpose of implementing sidewalks is as a special pedestrian lane with security and safety guarantees against traffic accidents. This study aims to look at people’s perceptions as the main users of sidewalk facilities so that they can encourage people to carry out walking activities as a basic moda of transportation. This research was conducted with a quantitative approach with accidental sampling method, namely primary data is the result of direct interviews in the field to the public using sidewalk facilities at Merdeka Square, Medan City. Based on the result of the analysis conducted on the results of the interview, it was found that the community as users of the sidewalks were not satisfied with the existing sidewalks facilities. So this study aims to provide input in order to improve sidewalk facilities that provide comfort and safety values for pedestrians in order to encourage and increase the number of pedestrians, especially at Merdeka Square, Medan City.
BETON BERMUTU DAN RAMAH LINGKUNGAN DENGAN ABU SEKAM PADI Simanjuntak, Johan Oberlyn; Sidabutar, Ros Anita; Pasaribu, Humisar; Saragi, Tiurma Elita; Panjaitan, Resinanta
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.259 KB)

Abstract

Concete is one of the construction materials used with a need that continues to increase every year based on concete-forming materils, especially cement, which has experienced a fairly large increase. Based on this, many studies have been carried out to reduce the need for cement using silica-containing materials, one of which is husk ash.Rice husk ash is produced from burning rice husk which contains silica. With these properties when mixed into the concrete mixture will improve the characteristics of the concrete. This study aims to determine the compressive strength of conrete achieved form a mixture of rice husk ash in concrete. The specimens made for each addition of the percentage of huck ash were 12 samples, with a cylindrical mold size of 15 cm in diameter and 30 cm in height. Variations of rice husk ash used were 3%, 6%, 9% of amount of cement. The type of test was carried out in the form the compressive strength of concrete and observations were made at the age of 7,14,21 28 days. Form the results of the study it was found that the increase in the compressive strength of conrete from the waste of adding rice husk ash as an additive to cement to creste quality and environmentally friendly concrete.
ANALISIS GEOGRID SEBAGAI TULANGAN PADA DINDING PENAHAN TANAH Simanjuntak, Johan Oberlyn; Bartholomeus; Saragi, Yetty Riris; Pasaribu, Humisar; Silaban, Arnita
Jurnal Visi Eksakta Vol. 2 No. 1 (2021): Jurnal Visi Eksakta : Edisi Januari
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.129 KB)

Abstract

The soil reinforcement system or reinforced earth was first introduced by Vidal in 1969. In addition, soil reinforcement has been applied in the construction of dams, embankments, raft foundations and supporting structures for ports and others. With the same concept as reinforced concrete, the reinforcement in the soil is in the form of sheet reinforcement, namely the geogrid relies on its high tensile strength. As concrete resists compression, reinforcement resists tension, so reinforcement in soil is useful for forming composite materials that work together to withstand the loads acting on construction, in this case the construction of retaining walls. In this study, a retaining wall will be analyzed in the form of an arrangement of concrete blocks as high as 6 meters with a foundation width of 2.5 meters and a thickness of 1 meter. On the soil side of the embankment, an analysis will be carried out with and without using a geogrid as reinforcement, where in the analysis of retaining walls with a geogrid several different configurations will be used for each layer thickness of the embankment (SV). The type of embankment soil used is granular soil (cohesiveless) with varying shear angles, f1 = 250, f2 = 300, f3 = 350, and f4 = 400. At the top of the embankment, there are pavement loads and traffic loads. of 15 kN/m. In this study, the retaining wall is planned to be able to withstand the loads acting on it, both from the outside and from the internal. Furthermore, as a comparison of results, to analyze or check the landslide field and stability for embankments using a geogrid and without geogrid, the Finite Element (OptumG2 for academics) method is used. Based on the analysis that has been done, it is found that the denser the geogrid reinforcement used in retaining walls, the higher the safety factor. The shear angle of a soil greatly affects the length of the geogrid. In addition, the smaller the shear angle, the higher the maximum stress value (Tmax) on the geogrid.
Beton Bermutu Dan Ramah Lingkungan Dengan Memanfaatkan Limbah Abu Ban Bekas Simanjuntak, Johan Oberlyn; Saragi, Tiurma Elita; Sidabutar, Ros Anita; Pasaribu, Humisar; Simbolon, Rido Parulian
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.07 KB) | DOI: 10.51622/eksakta.v2i2.374

Abstract

The need for housing is increasing day by day. This is a factor in the visit to the need for concrete as a housing construction material. The more concrete that is produced, the more cement is needed for the construction. Concrete is a composite material (mixture) of several materials, the main ingredient of which consists of a mixture of cement, fine aggregate, coarse aggregate and water. Utilization of waste tire ash in the concrete mix is one of the alternative uses so that ic can ultimately increase the efficiency of cement savings which takes a long time to increase in high prices. With reference to this, this study uses used waste as a cement additive with a mixture composition of 0%, 3%, 6% and 9%. The test specimens were made using a cylinder with a diameter of 15 cm and a height of 40 cm with 48 specimens produced. The results of the compressive strength test of normal concrete (25.45 MPa), while the concrete with a mixture of 3% used tire ash (28.15 MPa), 6% used tire ash mixture (23.46 MPa) and 9% used tire ash mixture (18.60 MPa). From this research, it can be said that compressive strength of concrete using 3% ash produces the greatest compressive strength of 28.15 MPa.
ANALISA KONTRAK PROYEK KONSTRUKSI DI INDONESIA Simanjuntak, Johan Oberlyn; Bartholomeus; Simanjuntak, Salomo; Lumbangaol, Partahi; Astri Agnes
Jurnal Visi Eksakta Vol. 2 No. 2 (2021): Jurnal Visi Eksakta : Edisi Juli
Publisher : LPPM Universitas HKBP Nommensen

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.711 KB) | DOI: 10.51622/eksakta.v2i2.394

Abstract

The contract is a very importand document in the project. Contract are seen as laws that must be obeyed, govern and control the rights and obligations between service users and service providers in the project. In world of construction in Indonesia, the standard used for contract documents must be based on Law No.2 of 2017 on construction services as a guide and guidance in constructions activities in Indonesia. In the international world, FIDIC documents has long been recognized, which is a contractual rule that has been used by many countries. FIDIC has also been widely adapted to government and private projects in Indonesia. The first analysis is to identify the contract documents used in several project in North Sumatera region. This analysis shows that the FIDIC red book document is the most suitable document to be used in several project in North Sumatera. The second analysis is comparing the FIDIC document and the analysis shows that the contract document that best matches the points in the questionnaired is Law No. 2 of 2017 on construction services. From the analysis of the previous discussion a conclusion was drawn regarding the philosophy of the work contract discussed was the type of unit price contract based on.
Co-Authors Astri Agnes Bartholomeus Buulolo, Rizky M. Chiuloto, Kalvin Fitriana, Liza H, Sonnya Cindy Haida Dafitri, Haida Halawa, Wilhelmus Reformasi Hasibuan, M. Husni Malik Hutagalung, Bartholomeus Laoli, Titusman Berkat Lubis, Muhammad Yusuf Parlagutan Lumban Gaol, Belinauli Teknika Lumbangaol, Partahi Panjaitan, Resinanta Pasaribu, Humisar Saragi, Tiurma Saragi, Tiurma Elita Saragi, Yetty Saragi, Yetty Riris Saragi, Yetty Riris R Sianipar, Ricki A H Sidabutar, Ros Anita Silaban, Arnita Simangunsong, Josua Marganda Simanjuntak, Nurvita Insani Simanjuntak, Nurvita Insani M. Simanjuntak, Salomo Simanungkalit, Okto Simbolon, Rido Parulian Simorangkir, Simon Petrus Sipayung, Triwani Sitorus, Sriyanti Suita, Diana