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All Journal LIMNOTEK Berkala Forum Studi Transportasi antar Perguruan Tinggi
Bella Koes Paulina Cantik
Universitas Pradita
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Engineering Environmental Science Social Sciences Transportation

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Assessment of Soil Loss Using RUSLE Method in Mrica Reservoir Catchment, Central Java, Indonesia Bella Koes Paulina Cantik; Ramon Putra; Elenora Gita Alamanda Sapan; Djoko Legono; Kisindi Nur Afifah
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 29 No. 2 (2023)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2023.2210

Abstract

The Indonesian government has identified the Serayu Watershed as a priority area for restoration within the National Mid-Term Development Plan. One of the significant challenges in this region is the high level of soil erosion, which threatens the overall ecosystem. This study aims to estimate the amount of soil loss in the Mrica Catchment using the Revised Universal Soil Loss Equation (RUSLE) Method. Various data sources were utilized, including soil type, rainfall, land cover, Digital Elevation Model, and conservation data. Geographic Information System (GIS) techniques were employed to calculate the critical factors required by the RUSLE Method, including soil erodibility (K), rainfall erosivity (Ri), slope length and steepness factor (LS), and cover management and conservation factor (CP). This research provides critical information for land management in Mrica Catchment. These factors were used to estimate soil loss in the Mrica Catchment, revealing a range between 62,553 tons per year (t/y) and 21,323,311 t/y, with an average value of 443.90 ton per hectare per year (t/ha/y). These results indicate high erosion potential based on the Classification of Erosion Hazard (HER). This study provides critical information for land management and offers suggestions for devising effective strategies to mitigate sedimentation impact in the Serayu Watershed. The highest soil loss values according to the RUSLE Method, both under the Environmental and Management Variable, are observed in the same location, namely, in the north of Mrica Catchment. The findings emphasize the urgent need for erosion control measures and sustainable land management practices in this priority restoration area.
EVALUASI LAYANAN DAN FASILITAS BUSWAY TRANSJAKARTA PADA MASA PANDEMI COVID 19 Annisa Fajriah Hasanah; Riska Wulandari; Jihan Sabila Wardhani; Gita Tresna Wiguna; Bella Koes Paulina Cantik
Berkala Forum Studi Transportasi antar Perguruan Tinggi Vol. 1 No. 2 (2023): Berkala Forum Studi Transportasi antar Perguruan Tinggi
Publisher : Prodi Teknik Sipil, Fakultas Teknik, Universitas Jember dan Forum Studi Transportasi antar Perguruan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The period of COVID-19 pandemic has had an impact on the transportation sector. The government's policy is in an effort to stop the virus infection by limiting the number of operating fleets. When the policy began to be relaxed, the service underwent changes in response to new conditions. Therefore, it is necessary to evaluate the services provided at this time. This research aims to evaluate the Transjakarta Busway services and provide input for stakeholders in providing better services. This research method used is a survey method. The analysis has shown that the services provided during the pandemic have met user expectations, except for the punctuality of the arrival and departure of the fleet. Respondents said that the current tariff is in accordance with the service received, and does not mind a maximum tariff increase of 10%. The results of this study indicate that respondents are satisfied with the services provided by Transjakarta busways. ABSTRAK Masa pandemi Covid-19 yang panjang memberikan dampak terhadap sektor transportasi. Kebijakan pemerintah dalam upaya menghentikan penularan virus mengharuskan beberapa angkutan publik membatasi jumlah armada yang beroperasi. Saat kebijakan mulai dilonggarkan, layanan mengalami perubahan merespon kondisi pandemi. Oleh karena itu perlu dilakukan evaluasi terhadap layanan yang diberikan saat ini. Penelitian ini bertujuan untuk melakukan evaluasi terhadap layanan Busway Transjakarta dan memberikan masukan bagi pemangku kebijakan dalam menyediakan layanan yang lebih baik. Metode penelitian yang digunakan adalah metode survei. Hasil analisis dari data yang didapatkan terlihat bahwa layanan yang diberikan selama masa pandemi sudah memenuhi harapan pengguna, kecuali ketepatan waktu kedatangan dan keberangkatan armada. Berkaitan dengan tarif, responden merasakan bahwa tarif saat ini sudah sesuai dengan layanan yang diterima, dan tidak berkeberatan jika ada kenaikan maksimal 10%. Hasil penelitian ini menunjukkan responden sudah puas dengan layanan yang diberikan oleh busway Transjakarta.
STUDI EKSPERIMENTAL KOMPOSISI LIMBAH HASIL CRUSHING TEST SEBAGAI PENGGANTI AGREGAT PADA CAMPURAN BERASPAL Gita Tresna Wiguna; Amelia Makmur; Bella Koes Paulina Cantik; Haykel Marcelinus Arapenta; Wike Permata Puspita D; Julius Andrew
Berkala Forum Studi Transportasi antar Perguruan Tinggi Vol. 2 No. 1 (2024): Berkala Forum Studi Transportasi antar Perguruan Tinggi
Publisher : Prodi Teknik Sipil, Fakultas Teknik, Universitas Jember dan Forum Studi Transportasi antar Perguruan Tinggi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/berkalafstpt.v2i1.888

Abstract

The increasing in construction projects has resulted in an increasing demand for concrete. This has the potential to increase crushing test waste, becoming an environmental issue as it can create large landfills and pollute the environment. Therefore, this research aims to develop an effective and innovative solution for managing crushing test waste by reusing it in infrastructure as an aggregate substitution in asphalt mixtures. The method used was an experimental study of AC-BC paved mixtures starting with finding the Optimum Asphalt Content (KAO), then aggregate substitution with percentages of 25%, 50%, 75%, and 100 at fc’25 concrete grade. Marshall testing was conducted on all test specimens to obtain the parameters for assessing the asphalt mixture. The research shows that the addition of a crushing test to the waste can change the Marshall parameters by asphalt mixtures. Thus, this solution will be the result of the negative effect by crushing test waste on the environment and improve material use efficiency in the construction industry. ABSTRAK Peningkatan jumlah proyek pembangunan berdampak pada permintaan beton yang semakin meningkat. Hal ini berpotensi meningkatkan limbah crushing test, dan menjadi masalah lingkungan karena dapat menciptakan tempat pembuangan sampah yang besar dan berpotensi mencemari lingkungan. Penelitian ini dimaksudkan untuk mengembangkan solusi efektif serta inovatif dalam pengelolaan limbah crushing test dengan memanfaatkannya kembali pada infrastruktur sebagai substitusi agregat pada campuran beraspal. Metode yang dipakai yaitu studi eksperimental campuran beraspal AC-BC yang dimulai dengan mencari Kadar Aspal Optimum (KAO), lalu dilakukan substitusi agregat dengan persentase 25%, 50%, 75%, dan 100 pada mutu beton fc’25. Pengujian Marshall dilaksanakan pada seluruh benda uji untuk mendapatkan parameter penilaian campuran beraspal. Dari hasil penelitian ini, terbukti bahwa penambahan limbah crushing test mempengaruhi parameter Marshall pada campuran beraspal. Dengan demikian, diharapkan solusi ini dapat mengurangi dampak negatif limbah crushing test terhadap lingkungan dan meningkatkan penggunaan material dalam industri konstruksi.
Co-Authors Amelia Makmur Annisa Fajriah Hasanah Djoko Legono Elenora Gita Alamanda Sapan Gita Tresna Wiguna Haykel Marcelinus Arapenta Jihan Sabila Wardhani Julius Andrew Kisindi Nur Afifah Ramon Putra Riska Wulandari Wike Permata Puspita D