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All Journal Jurnal Spektran Reinforcement Review In Civil Engineering Studies and Management
Ni Putu Delima Yogeswari Saraswati
Program Studi Magister Teknik Sipil Fakultas Teknik Universitas Udayana
Civil Engineering, Building, Construction & Architecture Transportation

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STUDI KELAYAKAN EKONOMI PEMBANGUNAN UNDERPASS PADA SIMPANG TOHPATI DI KOTA DENPASAR Ni Putu Delima Yogeswari Saraswati; Putu Alit Suthanaya; Made Agus Ariawan
JURNAL SPEKTRAN Vol 9 No 2 (2021)
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRAN.2021.v09.i02.p05

Abstract

Private vehicle ownership does not pay attention to the capacity of the road that will cause congestion of the road network in urban areas. Setting The Tohpati Junction with Traffic Signaling Tool is not able to cope, the solution to this condition is to build an underpass. The purpose of the study is to analyze the performance of existing intersections and underpasses in 2025, analyze the amount of costs required for the underpass, analyze the direct benefits of underpass construction, and can be known whether the project is feasible or not with an economic feasibility analysis of the underpass investment built. In addition to using primary data and secondary data in calculations, the method of economic feasibility analysis as a comparison of costs and benefits with indicators Net Present Value (NPV), Benefit Cost Ratio (BCR) and Internal Rate of Return (IRR). The results showed the performance of existing intersections obtained a delay of 373 seconds /smp morning peak hours, for the peak hour of noon 364 seconds / smp, and the peak afternoon 364 seconds / smp, including the level of service F. Simpang assumption underpass built the value of delay peak hours morning 19.02 seconds / smp, for the peak hours of noon 19.33 seconds / smp, and the peak afternoon 18.32seconds / smp, including the level of service A. In realizing the construction of the underpass, it is necessary to pay Rp. 224,964,665,195.28 and direct benefit from the construction of the underpass at Simpang Tohpati in Denpasar City for the cost savings of road users.amounting to Rp.10.407.740.934,00. In general, the underpass construction project at Simpang Tohpati in Denpasar city is economically viable and the terms of the three bank interest rates of 12%,15% and 18% in one year result in a non-negative NPV value, BCR is not less than one and the IRR is not below the bank's interest rate, hence the analysis related to the sensitivity of the bank to the condition of I, II and III.
Analisis Kinerja Simpang Non-APILL (Studi Kasus: Simpang Jalan Pulau Galang – Jalan Taman Pancing – Jalan Tukad Baru) Ni Putu Delima Yogeswari Saraswati; P. Kwintaryana; Putu Budiarnaya; Rudolfo Xavier Lobato Gusmao
Reinforcement Review in Civil Engineering Studies and Management Vol. 1 No. 1 (2022)
Publisher : Universitas Pendidikan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.827 KB) | DOI: 10.38043/reinforcement.v1i1.4067

Abstract

Population growth in Denpasar City continues to increase from year to year. This indirectly causes the number of vehicle ownership in Denpasar City to continue to increase while the existing facilities are inadequate. We can see this in traffic problems such as congestion that often occurs, especially at intersections. Jalan Pulau Galang - Jalan Taman Pancing - Jalan Tukad Baru is an example of an intersection that has irregular traffic conflict points, especially during rush hours. This junction is a non APILL junction. This location was chosen as the research because in addition to the irregular traffic flow at certain hours, at this intersection there are also residential and shopping areas which trigger more congestion at this intersection. From the problems that arise at the Jalan Pulau Galang intersection - Jalan Taman Pancing - Jalan Tukad Baru, a study was carried out which aims to determine the performance and service level of the intersection. If the service level at the intersection is in the safe category, then preventive measures to avoid congestion must be analyzed. The results of the calculations that have been carried out show that the value for the intersection capacity (C) is 6,213 smp/jam with the degree of saturation (DS) being 0,363 smp/jam. The DS (Degree of Saturation) value indicates that the intersection is included in the service level category B according to the 2014 PKJI, which has stable flow characteristics, but the operating speed is starting to be limited by traffic conditions. Service level B has an NVK value between 0.20-0.44. For this reason, it is necessary to supervise the location of the intersection so that the location of the intersection still has an adequate level of service and does not increase in height to avoid severe traffic jam
Co-Authors Budiarnaya, Putu I Made Agus Ariawan I P. Alit Suthanaya Putu Kwintaryana Winaya Rudolfo Xavier Lobato Gusmao