Media Ilmiah Teknik Sipil

Model Pemilihan Kendaraan Umum Dan Kendaraan Pribadi Untuk Perjalanan Bekerja Di Kota Palangka Raya

Christian Dwi Putra Widjaya — 2024-09-30

Low utility of public transport has reduced a lot of public transport passenger numbers and increased use of private modes travel for work, so public transport should be solution has turned into a burden for transportation systems increase the traffic volume due to urban. This study aims to produce models to predict the behavior mode choice valid and reliable, for design the operating model of a competitive public transport and climate policies support the existence of public transportation. To find a way for public transport back to the main mode transportation that are reliable and have a major high utility as well as to suppress the use of motorcycles and private cars. The main model has used was polynomial discrete choice mode by developing a single answer choices at Palangka Raya. The Results has received 2 different logit models. Based on logit models of type I, to up the uses public transport, can be done by pressing the ownership of private vehicles by restricting ownership 1 motorcycle and 1 car. The calculation of logit model II, increasing the use of public transport, can be done by speeding up public transport travel time and adjust travel times using private modes.

Hubungan Antara Luas Daerah Tangkapan Terhadap Angka Koreksi Hidrograf Satuan Sintetik Gama 1

Titiek Widyasari — 2024-09-30

The principle of the unit hydrograph (HS) method is the direct runoff hydrograph due to effective rainfall, which remains at 1 mm/hour and is uniform across the entire catchment or river basin area, thus requiring verification for the use of the HS method and examining the relationship between catchment area and correction factor. This research uses the HSS Gama 1. The parameters investigated for HSS Gamma 1 are parameters in four catchment areas in Yogyakarta, namely DAS Progo, Sub-DAS Winongo, Sub-DAS Code, and Sub-DAS Ngrancah. The results of this study indicate that the larger the catchment area, the smaller the thickness of rainfall on HSS Gama 1. If the thickness of rainfall is less than 1 mm/hour, then hydrograph the HSS Gama 1 of correction below hydrograph the HSS Gama 1 of initial. There is a correlation between the catchment area and the correction factor, meaning that the larger the catchment area, the greater the correction factor in the HSS Gama 1 method with the logarithmic regression method and a correlation coefficient of 0.9958.

Analisis Beban Kerja Dan Beban Mental Masinis Terhadap Keselamatan Perjalanan Kereta Api (Studi Kasus: Masinis pada Divre II Sumatera Barat)

Sicilia Afriyani — 2024-09-30

As a mode of mass transportation, trains are one of the choices for people to travel. Safety and security of train travel are important factors in the implementation of railway transportation. One of the problems in railways is the low safety performance reflected by the high number of accidents. Machinists play an important role in the safety of railroad trave. The increasing number of schedules and trips as well as the lack of the number of machinists assigned to Divre II West Sumatra resulted in an increasingly dense schedule arrangement that affects the workload and mental burden felt by machinists and of course will also have an impact on the safety of the train journey itself. Therefore, it is necessary to conduct research on workload and mental load on machinists. This study aims to predicting the probability of train accidents in terms of factors affecting the level of fatigue, predicting the probability of train accidents in terms of factors affecting workload and mental load, analyzing the relationship between factors affecting workload and mental load felt by machinists in relation to train accidents. The method using modeling with a Bayesian Network Structure (SBN) using questionnaire data conducted on machinists in Divre II West Sumatera which is then analyzed using Gennie 2.2 Software to obtain the probability value of accidents that may occur to machinists based on the machinist classification level and finally find out what factors affect the workload and mental of machinists.

Analisis Potensi Air Tanah Dengan Geolistrik Sebagai Alternatif Sumber Air Irigasi Pada Desa Bagetango, Kecamatan Lopok, Kabupaten Sumbawa Besar

Nurul Jannah Asid — 2024-09-30

Climate conditions affect the water balance in an area. Bange Tango Regency is an area that is dominant with agricultural land, so it requires good irrigation to develop the potential of agricultural land, however meeting agricultural irrigation water needs is still difficult, especially entering the peak dry season in early August to mid-late October with average temperatures. -The highest average is above 32°C, even in October, with an average lowest temperature of 33°C with a low water vapor concentration even though it is influenced by the southeast wind which blows from the Australian Continent towards the Asian Continent which passes through the Sumbawa Island area and its surroundings. . This research was carried out to detect new water sources apart from the use of surface water sources such as river dam water, lakes and shallow wells (dig wells) in the context of land extensification to increase the usability of agricultural land in the dry season. This research is experimental for the detection of groundwater potential using the Schlumberger configuration resistivity geoelectric method with two sounding point distances of 200 m. The research results show that the aquifer layer in this area is sandstone with a resistivity value of 26.15 Ωm and at a depth of 48.56 to a depth of 54.77 MBMT, while the estimated optimum pumping discharge is ± 1.00 liters/second.

Kajian Laboratorium Kuat Tarik Belah Beton Egg Tray Dengan Penambahan Superplasticizer

Jusuf Wilson Meynerd Rafael — 2024-09-30

Using egg tray waste as a fine aggregate substitute can be an alternative for making environmentally friendly concrete. The weaknesses of concrete with egg trays can corrected by adding a superplasticizer to both the compressive strength and split tensile strength of the concrete. This study used an egg tray waste as a fine aggregate substitution of 3% with variations in superplasticizer content. The test specimens were by a concrete cylinder with a diameter of 15 cm and a height of 30 cm, which varied the superplasticizer content by 0%, 0.5%, 1%, 1.5%, 2%, and 5% compared to normal concrete conditions. The test results show that concrete given a 3% egg tray waste as a substitute for fine aggregate has a lower split tensile strength value than normal concrete. Adding superplasticizer material can increase the value of split tensile strength up to 1% superplasticizer content. As the superplasticizer content increases, the value of the split tensile strength will again decrease.

Analisis Penelitian Rute Transportasi Darat Balikpapan-Samarinda

Syaulla Nefertity Makaingat — 2024-09-30

The existence of one of the transportation infrastructure in Indonesia, namely the Balikpapan-Samarinda Toll Road, can be traveled by one route through Soekarno-Hatta National Road with a distance of 114 km, while after the realization of the Balikpapan-Samarinda toll road, it can be reached with a distance of 97.99 km with a travel time of only 1 hour 12 minutes and with a tariff of Rp. 146,500 for class 1 (one) vehicles through the Manggar toll gate to Mahkota Bridge 2 (PTJBS, 2021). With the addition of one traffic route from Balikpapan City to Samarinda City or vice versa, of course travelers can choose a travel route that can reduce distance. However, not all passengers choose the same route, many factors can influence the route choice by passengers. This research is conducted by interviewing route users and obtaining travel characteristics and route selection model with attributes of travel cost, and travel time. From the regression results, the travel cost utility equation Ujt - Ujn = 0.00002 (X1) - 3.2886 and the travel time utility equation Ujt - Ujn = 0.0876 (X2) - 2.9795. Both attributes produce a min (-) utility function model, which means that the smaller the difference in travel costs and times, the greater the potential for route users to move from Jl. Nasional to Jl. Tol.

Potensi Sampah Anorganik Berbahan Pvc Dengan Tambahan Nano Precipitated Calcium Carbonate Dan Plasticizer Untuk Isolator Kabel Guna Keamanan Bangunan

Bayu Kurnia Putra — 2024-09-30

The issue of plastic waste, particularly PVC, has become a serious environmental concern in Indonesia due to population growth, which has led to an increase in waste volume. PVC waste is challenging to recycle and often causes environmental problems, such as flooding and fires due to electrical short circuits. This study aims to reduce PVC waste by processing it into a safer and more environmentally friendly cable insulator. The research methods include the collection, sorting, mixing, and testing of PVC waste with the addition of Nano Precipitated Calcium Carbonate (NPCC) and a plasticizer. The results indicate that the PVC waste-based cable insulator possesses adequate tensile strength and elasticity, as well as electrical resistance that meets the standards of SNI 04-6629:2011 and SPLN 42-2:1992. The conclusion of this study is that the utilization of PVC waste as a cable insulator can reduce environmental problems and improve the safety of electrical installations.

Evaluasi Kinerja Dinding Penahan Tanah (Retaining Wall) Pada Proyek Pembangunan Drainase Mendawai

Akhmad Saleh — 2024-09-30

The issue concerning the retaining wall revolves around the potential risk of landslides triggered by soil displacement, primarily observed in the main drainage channel within Mendawai's trading district. Despite the installation of retaining walls along the channel, persistent issues have led to structural failure or even collapse. In response to this challenge, researchers aim to investigate the impact of retaining wall usage on slope stability in the construction project of drainage channels in Mendawai, Palangka Raya, Central Kalimantan. This study will utilize manual calculation methods alongside analysis using geotechnical software, specifically Plaxis 8.6. Analysis of manual calculations reveals a significant discrepancy in safety factors. Manual calculations yield a slope stability value of 1.463 and a shear stability value of 0.834, both falling below the safety standard of 1.5. Meanwhile, Plaxis 8.6 analysis indicates a retaining wall bearing capacity value of 1.599, also below the safety standard set at 3. This indicates that the retaining wall experiences failure and fails to meet the anticipated safety standards.

Analisa Nilai Investasi Penjualan Rumah Tipe 36 Pada Perumahan PT. Rahayu Charani Rosend

Diah Ayufitria Larasati — 2024-09-30

Increasing demand for affordable housing presents investment opportunities, but requires further research to understand the ability of lower-middle-class communities to afford such housing. The property business is identified as a crucial investment, especially with growing populations and increasingly scarce and expensive land over time. This indicates that the demand for new homes will continue to rise, especially in developing countries and large cities. Critical investment analysis was conducted to provide information to PT. Rahayu Charani Rosend regarding potential profits and risks. This research utilized the Net Present Value (NPV), Profitability Index (IP), Payback Period (PP), and Break Even Point (BEP) methods. Data used included selling prices, housing price lists, and bank interest rates for the year 2023. The research results show an NPV of Rp13,146,894 > 0, an IP value of 4.806 > 1, a PP of 1 month 61 days, and a BEP at 11 units (BEP in Indonesian rupiah equivalent to Rp1,883,601,297). Based on these calculations, it can be concluded that this investment is viable because NPV > 0 and IP > 1.