Adrian Firdaus
Universitas Katolik Parahyangan

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Kajian Produktivitas Instalasi Rangka Atap Baja Ringan: Studi Kasus di Bandung, Indonesia Adrian Firdaus; Yohanes Lim Dwi Adianto; Zulkifli B. Sitompul; Antonius Trianto
Jurnal Ilmiah Rekayasa Sipil Vol 17 No 2 (2020): Oktober 2020
Publisher : Pusat Penelitian dan Pengembangan Masyarakat (P3M), Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jirs.12.2.376

Abstract

The needs of housing in Indonesia is increasing in conjunction with the population growth. This increment has to be addressed by an efficient construction process, which includes an adequate material and construction method selection. The utilization of light steel roof trusses is as an innovation which is considered better in terms of cost, time, and quality, com- pared to a conventional wood roof trusses. This research is aimed to identify the productivity of light steel roof trusses installation. The case study is a housing project in Bandung, which is compared to a historical data from several light steel roof subcontractors within Bandung area. The productivity from the direct observation on the case study is 9.821 m2/man-day, while the historical data processing generates 7.355 m2/man-day. This different is resulted from the ineffective working time. The ineffective working time covers worker’s break time, learning curve, and coordination time. Besides, this different could also be caused by the 7 hours’ assumption on the daily working hour. This assumption is not thoroughly achieved due to several factors which are weather and daily working efficiency. In conclusion the conservative value of the light roof steel trusses installation productivity is 7.355 m2/man-day.
EVALUASI PROYEKSI DEMAND BARANG DAN PENUMPANG PELABUHAN DI PROVINSI MALUKU Adrian Firdaus; M. Dwi Yoga Sutanto; Rajin Sihombing; M. Weldy Hermawan
Jurnal Transportasi Vol. 19 No. 2 (2019)
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.97 KB) | DOI: 10.26593/jtrans.v19i2.3467.101-110

Abstract

Abstract Every port in Indonesia must have a Port Master Plan that contains an integrated port development plan. This study discusses one important aspect in the preparation of the Port Master Plan, namely the projected movement of goods and passengers, which can be used as a reference in determining the need for facilities at each stage of port development. The case study was conducted at a port located in a district in Maluku Province and aims to evaluate the analysis of projected demand for goods and passengers occurring at the port. The projection method used is time series and econometric projection. The projection results are then compared with the existing data in 2018. The results of this study show that the econometric projection gives adequate results in predicting loading and unloading activities as well as the number of passenger arrival and departure in 2018. This is indicated by the difference in the percentage of projection results towards the existing data, which is smaller than 10%. Whereas for loading and unloading activities, time series projections with logarithmic trends give better results than econometric projections. Keywords: port, port master plan, port development, unloading activities  Abstrak Setiap pelabuhan di Indonesia harus memiliki sebuah Rencana Induk Pelabuhan yang memuat rencana pengem-bangan pelabuhan secara terpadu. Studi ini membahas salah satu aspek penting dalam penyusunan Rencana Induk Pelabuhan, yaitu proyeksi pergerakan barang dan penumpang, yang dapat dipakai sebagai acuan dalam penentuan kebutuhan fasilitas di setiap tahap pengembangan pelabuhan. Studi kasus dilakukan pada sebuah pelabuhan yang terletak di sebuah kabupaten di Provinsi Maluku dan bertujuan untuk melakukan evaluasi ter-hadap analisis proyeksi demand barang dan penumpang yang terjadi di pelabuhan tersebut. Metode proyeksi yang dipakai adalah proyeksi deret waktu dan ekonometrik. Hasil proyeksi selanjutnya dibandingkan dengan data eksisting tahun 2018. Hasil studi ini menunjukkan bahwa proyeksi ekonometrik memberikan hasil yang cukup baik dalam memprediksi aktivitas bongkar barang serta jumlah penumpang naik dan turun di tahun 2018. Hal ini diindikasikan dengan selisih persentase hasil proyeksi terhadap data eksisting yang lebih kecil dari 10%. Sedangkan untuk aktivitas muat barang, proyeksi deret waktu dengan tren logaritmik memberikan hasil yang lebih baik daripada proyeksi ekonometrik. Kata-kata kunci: pelabuhan, rencana induk pelabuhan, pengembangan pelauhan, aktivitas bongkar barang
ECONOMIC AND FINANCIAL FEASIBILITY OF PORT DEVELOPMENT IN EAST KALIMANTAN PROVINCE Theresita Herni Setiawan; Finnegan Belano; Adrian Firdaus; Andreas Franskie Van Roy; Yohanes Lim Dwi Adianto; Aloysius Tjia Iwan Irawan
Jurnal Transportasi Vol. 22 No. 1 (2022)
Publisher : Forum Studi Transportasi antar Perguruan Tinggi (FSTPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/jtrans.v22i1.5770

Abstract

Abstract The port is an infrastructure that connects land and sea transportation modes, which greatly affects the movement of goods and passengers. The construction or development of a port requires an in-depth study, because it is associated with large costs. Several parameters are needed to conduct a feasibility study for the construction of a port, which includes the demand for loading and unloading of goods and ship visits. In this study, a feasibility study was conducted on the construction of a port in East Kalimantan Province. This study shows that the planned development of a port in East Kalimantan Province is economically feasible but not financially viable. Keywords: port; development feasibility; economic feasibility; financial feasibility. Abstrak Pelabuhan merupakan infrastruktur yang menghubungkan moda transportasi darat dan moda transportasi laut, yang sangat berpengaruh terhadap pergerakan barang dan penumpang. Pembangunan atau pengembangan suatu pelabuhan memerlukan kajian yang mendalam, karena terkait dengan biaya yang besar. Diperlukan beberapa parameter untuk melakukan kajian kelayakan pembangunan suatu pelabuhan, yang mencakup kebutuhan bongkar muat barang dan kunjungan kapal. Pada studi ini dilakukan kajian kelayakan pembangunan suatu pelabuhan di Provinsi Kalimantan Timur. Studi ini menunjukkan bahwa rencana pembangunan suatu pelabuhan di Provinsi Kalimantan Timur layak secara ekonomi tetapi tidak layak secara finansial. Kata-kata kunci: pelabuhan; kelayakan pembangunan; kelayakan ekonomi; kelayakan finansial.