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Studi Perubahan Garis Pantai dengan Metode DSAS (Digital Shoreline Analysis System) Sebagai Upaya Identifikasi Erosi di Pantai Utara Pulau Tarakan Edy Utomo; Muhammad Djaya Bakri
Borneo Engineering : Jurnal Teknik Sipil Volume 7 Nomor 2 Tahun 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v7i2.4208

Abstract

The beach is an area on the edge of the sea which experiences the influence of sea water fluctuations. Between the coast and the mainland separated by an imaginary line called the coastline. One of the problems on the coast is the decline of the coastline (Abrasion) and the progress of the costline (Accretion). Beaches that must be protected from the phenomenon of Abrasion and Accretion needs to be identified first to find out how far the changes have occurred in the coastline. The beach which is the object of this study is the beach on the north side of Tarakan Island. Identification was carried out by applying the DSAS Method (Digital Shoreline Analysis System) with change analysis using the LRR Method (Linear Regression Rate) and RMSE Method (Root Mean Square Error) while the mold delineation coastline based on Landsat satellite imagery in 1988, 1990, 2010, 2016, 2022, and 2023. The results of studies conducted in this study indicate that there has been a decline in the coastline with an average rate of change of 2,16 Meter/year and is predicted to increase backward an average of 0,74 Meter/year in 2033 for sandy beach areas. While in other areas there is progress of the coastline which is estimated to have a rate increase of an average of 2,40 Meter/year for Mangrove vegetation areas and an average of 0,19 Meter/year for community residential areas in 2033.
Faktor Yang Mempengaruhi Pemilihan Moda Transportasi Menuju Sekolah Di Kota Tarakan Muhammad Kurnia; Iif Ahmad Syarif; Edy Utomo
Borneo Engineering: Jurnal Teknik Sipil Vol. 9 No. 3 (2025): Volume 9 Nomor 3 Tahun 2025
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/be.v9i3.441

Abstract

Abstract Mode Choice of School Transportation is an important decision influenced by various socio-economic factors and travel characteristics. This study aims to analyze the factors influencing students’ choice of transportation modes to school in Tarakan City, North Kalimantan. Data were collected through a questionnaire survey of 250 student respondents using a purposive sampling method. The findings indicate that motorcycles are the dominant mode of transportation (89.3%) chosen by students. The most influential factors in mode choice are speed (67.9%), comfort (60.7%), and low cost (39.3%). The analysis also reveals that the majority of students (82.1%) do not possess a driver’s license, yet they still use motorcycles due to accessibility and flexibility. Willingness to switch to public transportation is low because of the limited availability and poor service quality of public transport in Tarakan City. This study recommends the development of a public transportation system that is comfortable, well-scheduled, and affordable to encourage behavioral change among students in their transportation choices. Keywords: transportation mode, students, mode choice, Tarakan City, motorcycle   Abstrak   Pemilihan moda transportasi menuju sekolah merupakan keputusan penting yang dipengaruhi oleh berbagai faktor sosial-ekonomi dan karakteristik perjalanan. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi pemilihan moda transportasi oleh pelajar menuju sekolah di Kota Tarakan, Kalimantan Utara. Data dikumpulkan melalui survei kuesioner kepada 250 responden pelajar dengan menggunakan metode purposive sampling. Hasil penelitian menunjukkan bahwa sepeda motor merupakan moda transportasi dominan (89,3%) yang dipilih oleh pelajar. Faktor-faktor yang paling berpengaruh dalam pemilihan moda adalah kecepatan (67,9%), kenyamanan (60,7%), dan biaya yang murah (39,3%). Analisis menunjukkan bahwa mayoritas pelajar (82,1%) tidak memiliki Surat Izin Mengemudi (SIM), namun tetap menggunakan sepeda motor karena kemudahan akses dan fleksibilitas. Kesediaan beralih ke transportasi umum rendah karena keterbatasan ketersediaan dan kualitas layanan angkutan umum di Kota Tarakan. Penelitian ini merekomendasikan perlunya pengembangan sistem transportasi umum yang nyaman, terjadwal, dan terjangkau untuk mendorong perubahan perilaku transportasi pelajar. Kata kunci: moda transportasi, pelajar, pemilihan moda, kota tarakan, sepeda motor