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Development of the Soekarno–Hatta International Airport Rail Link Project Using the Value Engineering Method: Creating Value for Money Berawi, Mohammed Ali; Susantono, Bambang; Dikun, Suyono; Ilyas, Tommy; Rahman, Herawati Zetha; Boy Berawi, Abdur Rohim; Zagloel, Teuku Yuri; Miraj, Perdana; Petroceany, Jade Sjafrecia
Makara Journal of Technology Vol 18, No 3 (2014)
Publisher : Directorate of Research and Community Services, Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.082 KB) | DOI: 10.7454/mst.v18i3.427

Abstract

Soekarno–Hatta Airport is the main gateway for international flights to Greater Jakarta. Its accessibility depends on the inter-city and Sedyatmo toll roads, which causes congestion in peak hours, leading to uncertainty about travel times. The Soekarno–Hatta International Airport Rail Link (SHIARL) is proposed as an alternative mass transportation project, which is expected to provide accessibility and mobility for people and goods to and from the airport. Previously, the project was unattractive to private investors as it was technically and financially unfeasible. Therefore, this research aims to improve the feasibility of the Soekarno-Hatta International Airport Rail Link (SHIARL) by using a value-engineering approach to create maximum value for money for the project. This research combines quantitative and qualitative methods. Questionnaire surveys are distributed to various stakeholders in the project, and a focus-group discussion (FGD) is conducted. The results identified additional, innovative functions through the integration of the Mass Rapid Transit (MRT), flood control, telecommunications, and development in the downtown area around the station. The life-cycle cost analysis confirmed the increased value for money because of the project’s additional functions, including a positive Net Present Value (NPV). Moreover, the findings showed that the internal rate of return (IRR) was 3% higher than the original single-function project.
EVALUASI PARAMETIK PERILAKU CABUT GEOSTRAP DENGAN MODEL NUMERIK DUA DIMENSI Prakoso, Widjojo A; Ilyas, Tommy
Jurnal Jalan-Jembatan Vol 29, No 3 (2012)
Publisher : Pusat Penelitian dan Pengembangan Jalan dan Jembatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.007 KB)

Abstract

ABSTRAK Teknik pemodelan numeric cabut (pullout) geostrap dalam konteks pemodelan numerik dengan metode elemen hingga dinding penahan tanah yang diperkuat dengan geosintetik (GRS-RW) dievaluasikan dalam makalah ini. Dua teknik pemodelan dievaluasikan yaitu teknik pemodelan tanpa menggunakan elemen antar muka tanah dan geostrap dan teknik pemodelan dengan menggunakan elemen antar muka.evaluasi dilakukan dengan menggunakan empat perilaku hasil uji laboratorium berikut: Kedua teknik pemodelan memberikan hasil yang relatif sama untuk perilaku extensibele geostrap, perilaku “letakan” pada gaya tarik yang relative rendah, dan ketiadaan perilaku perlemahan (softening), tetapi hanya teknik pemodelan dua yang dapat memberikan hasil gaya tarik puncak semakin meningkat tegangan vertical. Kebutuhan input teknik pemodelan satu lebih sederhana daripada kebutuhan teknik pemodelan dua. Studi para metik modulud elastisitas tanah melakukan geostrap, dan kuat geser tanah yang dilakukan. Pengaruh dari dua parameter pertama adalah tidak terlalu signifikan. Pengaruh dari kuat geser tanah adalah signifikan untuk teknik pemodelan satu. Secara umum teknik pemodelan dengan menggunakan antar muka memberikan hasil yang lebih baik. Kata kunci : dinding penahan tanah, tanah diperkuat, geosintetik, uji cabut, metode elemen hingga