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All Journal Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur)
Rahma, Pamela Dinar
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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EFFECTIVENESS OF USE OF MARBLE POWDER WASTE AS A SUBSTITUTION FOR FINE AGGREGATE IN RIGID PAVEMENT Tanggung, Chandra Wangi; Oktaviastuti, Blima; Rahma, Pamela Dinar; Sa'dillah, M.
Jurnal Ilmiah MITSU (Media Informasi Teknik Sipil Universitas Wiraraja) Vol 14 No 1 (2026): Jurnal Ilmiah MITSU
Publisher : Fakultas Teknik, Universitas Wiraraja

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24929/ft.v14i1.4208

Abstract

The rapid development of infrastructure has led to an increase in demand for infrastructure materials. The use of natural materials in concrete production is becoming increasingly uncontrolled with the continuation of current infrastructure development. With the increase in marble production in Indonesia, the marble powder waste produced has become an environmental problem that needs to be addressed. This study aims to determine the compressive strength of concrete with the addition of 0%, 15%, 25%, and 35% marble powder waste. The research design used in this study is quantitative with a experimental research type. Data analysis uses the ACI (American Concrete Institute) standard. The test specimens in this study were made using cylinders with a diameter of 15 x 30 cm with a planned concrete compressive strength of ƒʾϲ 21.7 MPa. The percentage of marble powder waste used varied between 0%, 15%, 25%, and 35% with a planned age of 7 and 28 days. The results showed that the addition of marble powder waste affected the compressive strength of the concrete, with an optimal value of 23.79 MPa achieved at 28 days with a variation of 15%.
Analisis Pemilihan Moda Bus dan Kereta Api Rute Malang-Jakarta Menggunakan Metode Stated Preference Weleng , Marselinus; Pandulu, Galih Damar; Rahma, Pamela Dinar
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 8 (2025): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

Transportation services connecting major cities play a vital role in facilitating public mobility, particularly along the Malang–Jakarta route, which has a high passenger volume. The two main options available are bus services and executive trains, both of which offer comparative advantages in terms of travel time, fares, and accessibility. This study is designed to explore the user profiles of these two modes, identify the determinants shaping mode choice preferences, and develop a mathematical model for predicting mode choice along the Malang–Jakarta corridor. The research approach adopts the stated preference technique, with data collected directly through a survey distributed to 100 bus users and 100 train users. The evaluated parameters include fare variations, differences in travel time, time differences to reach the terminal or station, and variations in departure schedules. The applied analytical techniques are multiple regression and the binomial logit model. The findings indicate that fare and accessibility factors have a dominant impact compared to other variables in determining mode choice. The resulting prediction model is capable of describing fluctuations in the probability of use between buses and trains in response to changes in service attributes. This research is expected to provide practical insights for transportation operators and policymakers in optimizing service standards and designing more efficient intercity transportation systems.
Analisis Efektivitas Jembatan Penyeberangan Orang (JPO) di Pasar Singosari Jasar , Tarsisius Sandro; Arifianto, Andy Kristafi; Rahma, Pamela Dinar
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 8 (2025): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Abstract

Pedestrian overpasses (JPO) are facilities provided for pedestrians to minimize the risk of accidents when crossing the street, especially in areas with high traffic volumes. In the Singosari Market area, Malang Regency, there is fairly heavy vehicle and pedestrian traffic, but the usage of existing pedestrian overpasses (JPO) remains relatively low. This study aims to identify the physical condition of the JPO, evaluate the level of effectiveness of JPO users, and undertake efforts to improve the effectiveness of JPO usage in Singosari Market. The research method used is descriptive quantitative, with primary data collection through field observations, measurements of the JPO’s geometric dimensions, a pedestrian volume survey, and the distribution of questionnaires to JPO users. Additionally, secondary data was obtained from relevant agencies. The effectiveness of the JPO was measured by comparing the number of pedestrians using the JPO to the total number of pedestrians crossing the road. The results of the study indicate that the physical condition of the JPO at Singosari Market does not yet fully meet the standards set by the Ministry of Public Works and Public Housing in 2018. Furthermore, the level of effectiveness in JPO usage falls into the “moderately effective” category. Therefore, it is necessary to improve the quality of facilities, add supporting infrastructure, and conduct public awareness campaigns to ensure the optimal safety and effectiveness of pedestrian overpasses.
Co-Authors Arifianto, Andy Kristafi Galih Damar Pandulu, Galih Damar Jasar , Tarsisius Sandro Oktaviastuti, Blima Sa'dillah, M. Tanggung, Chandra Wangi Weleng , Marselinus