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All Journal Jurnal Transportasi Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Prosiding Forum Studi Transportasi Antar Perguruan Tinggi Jurnal Rekayasa Sipil Civil Engineering Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Logic : Jurnal Rancang Bangun dan Teknologi Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Prosiding Seminar Nasional Teknologi Industri Berkelanjutan Prosiding Seminar Nasional Teknik Sipil UMS INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Berkala Forum Studi Transportasi antar Perguruan Tinggi
Sumarni Hamid Aly
Departemen Teknik Sipil, Universitas Hasanuddin
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Modeling Tourist Transportation Mode Choice and Trip Chains Through Key Influencing Factors Wulansari, Indriaty; Hamid Aly, Sumarni; Isran Ramli, M.; Hustim, Muralia
Civil Engineering Journal Vol 11, No 2 (2025): February
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-02-017

Abstract

To understand tourist behavior and the factors influencing it, a thorough analysis of transportation mode choice and trip chain is required, especially from the tourists' perspective. Therefore, this study aims to model transportation mode choice and trip chain in the Bira Peninsula, Bulukumba Regency, South Sulawesi. To achieve this, a quantitative method was employed with a sample size of 500 tourists. The study results show that independent variables significantly impact dependent variables, such as individual characteristics, movement characteristics, destination attributes, mode choice attributes, and trip chains. Several indicators showed a significant influence for transportation mode choice with a confidence level of over 85%. These indicators include age, income, origin location, destination location, number of visits, group size, flexibility, facilities, ease of access, activity type, cost, distance, time, and safety. Similarly, the analysis identified several key indicators affecting the trip chain, with a significance level above 85%. These indicators include age, income, origin, destination location, estimated arrival time, number of visits, flexibility, and destination attraction. Other indicators include facilities, ease of access, trip purpose, activity type, travel time, distance from the city center to the tourist destination, cost, distance, time, and safety. Two significant indicators found as differentiators from previous research are flexibility and type of activity. The study demonstrated high accuracy for the mode choice model and the trip chain model, with validity rates of 98.40% and 97.65%, respectively. The findings indicate that the model accurately captures the factors influencing transportation mode choice and trip chains, making it a valuable reference for future explorations to improve transportation systems' efficiency and comfort. Doi: 10.28991/CEJ-2025-011-02-017 Full Text: PDF
Sosialisasi Manfaat Moda Transportasi Publik Berbasis Rel untuk Peningkatan Animo Penggunaan Kereta Api di Rute Maros-Barru Sulawesi Selatan Ramli, Muhammad Isran; Adisasmita, Sakti Adji; Sabil, Muhammad Ikhsan; Yatmar, Hajriyanti; Tjaronge, Muhammad Wihardi; Bakri, Bambang; Hustim, Muralia; Aly, Sumarni Hamid; Tarakka, Rustan; Sirajuddin, Yahya; Chaerunnisa, Andi Sitti
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.574

Abstract

The Maros-Barru railway is a strategic route to be developed as a public transportation mode that can connect two important areas in the province of South Sulawesi. However, even though the railway infrastructure in this area already exists, the level of train use by the community is still quite low. The demand for this travel need is significant for planning purposes, both facilities and infrastructure, especially transportation. The lack of public interest in trains on the Maros-Barru route is caused by several factors, one of which is the lack of information received by the community regarding the benefits and comfort offered by trains. Socialization of the benefits of rail-based public transportation will be carried out through various communication channels to reach more passengers, and it is hoped that this activity will benefit policymakers in the management and planning of trains in Sulawesi and reduce transportation problems. Before the socialization, there was no value, but after the socialization, a value of 2984 was obtained, which was in the range of 2501-3250, with the criteria Good. This means that this activity is also expected to be a preference for public transportation modes, especially trains, and the transition from other transportation modes to trains.
QUANTIFYING GREENHOUSE GAS EMISSIONS FROM CORPORATE OFFICE OPERATIONS: PT PLN (PERSERO) UNIT INDUK DISTRIBUSI (UID) KALSELTENG CASE STUDY Rosianasari, Novieta; Hustim, Muralia; Aly, Sumarni Hamid; Alimuddin, Hardianti; Husna, Fauziatul
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 8, NUMBER 2, OCTOBER 2025
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v8i2.23094

Abstract

Office-based operations in the energy sector are an underrecognized yet significant source of greenhouse gas (GHG) emissions. At PT PLN (Persero) UID Kalselteng-the main electricity provider for South and Central Kalimantan-routine administrative and technical activities contribute to emissions primarily through electricity consumption, fossil fuel vehicle use, and solid waste generation. Aim: This study aims to identify and quantify the main emission sources from PLN’s office operations over a three-year period (2022-2024), and to propose actionable mitigation strategies aligned with PLN’s decarbonization targets and Indonesia’s national sustainability goals. Methodology and results: Using the 2006 IPCC Guidelines, emissions were calculated across three categories: electricity use, transportation fuel, and waste disposal. The analysis shows that electricity consumption is the dominant source, contributing an average of 6,447.56 tons CO₂-eq per year (83% of total emissions). This is followed by emissions from operational vehicles at 1,175.30 tons CO₂-eq (15.2%) and solid waste at 107.85 tons CO₂-eq (1.4%). Conclusion, significance and impact: These findings reveal that office-level emissions-particularly in energy utilities-are both substantial and symptomatic of broader structural inefficiencies in emission control. Addressing these is critical for advancing sustainability, as they significantly impact organizational carbon footprints. Accordingly, this study recommends four key mitigation strategies: (1) retrofitting offices with energy-efficient systems, (2) transitioning to electric vehicles, (3) implementing zero-waste-to-landfill policies, and (4) initiating localized tree-planting programs for carbon offsetting. Together, these measures support integrated sustainability efforts by reducing emissions, improving resource efficiency, and reinforcing PLN’s leadership in sustainable public utility operations across Indonesia and Southeast Asia.
Perilaku Mekanik Beton yang Mengandung Fly Ash dan Pasir Slag Nikel Pengganti Agregat Halus Ahmad, Syamsul Bahri; Irmawaty, Rita; Aly, Sumarni Hamid; Amiruddin, A. Arwin
Prosiding Seminar Nasional Teknik Sipil UMS 2020: Prosiding Seminar Nasional Teknik Sipil UMS
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1520.027 KB)

Abstract

Pemanfaatan fly ash dan pasir slag nikel diharapkan menjadi solusi pengurangan penggunaan semen dan pasir sungai untuk mencegah kerusakan ekosistem sungai akibat eksploitasi yang tidak terkendali. Penelitian ini mengkaji perilaku mekanik beton (kuat tekan, kuat tarik belah dan modulus elastisitas) terhadap sejumlah benda uji silinder diameter 100 mm dan tinggi 200 mm. Beton dengan semen OPC tanpa fly ash dan pasir sungai sebagai beton kontrol (OPC-Pasir), beton dengan semen OPC dan pasir slag nikel 50 % (OPC-50GNS) dan beton dengan fly ash 15% dan 30% dan pasir slag nikel 50 % (15FA-50GNS dan 30FA-50GNS). Kuat tekan beton, modulus elastisitas dan kuat tarik belah beton dievaluasi pada umur 28 hari berdasarkan faktor air semen 0,45 dan 0,25. Hasil penelitian menunjukkan beton OPC-50GNS, 15FA-50GNS dan 30FA-50GNS mengalami peningkatan kuat tekan, kuat tarik dan modulus elastis dibandingkan beton OPC-Pasir sebagai beton kontrol. Peningkatan kinerja dipengaruhi oleh faktor air semen, dimana persentase peningkatan yang terbesar terjadi pada beton dengan faktor air semen 0,45 dibandingkan dengan faktor air semen 0,25. Kinerja mekanik beton yang mengandung fly ash kelas C pengganti semen hingga 30% dan slag nikel pengganti pasir sungai hingga 50% yaitu OPC-GNS, 15FA-50GNS dan 30FA-50GNS adalah lebih baik dibandingkan dengan beton OPC-Pasir.
Co-Authors A. Arwin Amiruddin Abdullah, Nurjannah Oktorina Achmad Zubair Adisasmita, Sakti Adji Ahmad, Syamsul Bahri Alimuddin, Hardianti Andi Tri Aswidinata Andi Tri Aswidinata, Andi Tri Bambang Bakri Chaerunnisa, Andi Sitti Halim, Hasmar Hasmar Halim Husna, Fauziatul IBRAHIM DJAMALUDDIN, IBRAHIM Ida Ayu Ari Angreni Irmawaty, Rita Irwan Ridwan Rahim Isran Ramli, M. M Isran Ramli M. Isran Ramli Mary Selintung Mubassirang Pasra Muh. Isran Ramli Muhammad Isran Ramli Muhammad Wihardi Tjaronge Muralia Hustim Ningrat, Andi Nur An-Nisa Putry Putu Hermawati Rasdiana Zakaria Rimba, Markus Rosalinda Ibrahim Rosianasari, Novieta Rustan Tarakka Sabil, Muhammad Ikhsan Sirajuddin, Yahya Syanne Pangemanan Taufik Takdir Wulansari, Indriaty Yatmar, Hajriyanti