Article Per Year (5 Year)
p-Index From 2021 - 2026
0.947
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All Journal International Journal Science and Technology (IJST) International Journal of Mechanical, Electrical and Civil Engineering
Haris Muhammadun
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering

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Journal : International Journal Science and Technology (IJST)

 1 
ANALYSIS OF INVESTMENT SENSITIVITY IN RUSUNAWA TAMBAK WEDI CITY SURABAYA Mawardianto, Hayadi Agus; Laksono Djoko Nugroho; Haris Muhammadun
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1098

Abstract

Based on the Surabaya City RPJMD for 2021-2026, strategic issues in government affairs in the field of housing and residential areas focus on providing Rusunawa capacity which is not proportional to the number of applicants. To overcome this problem, the Surabaya City Government took the initiative to build Rusunawa Tambak Wedi in the City of Surabaya. This research aims to evaluate the amount of investment receipts and determine the acceptance limits, with the aim of minimizing risks in Rusunawa investment activities. The research results show that the Medium Tariff Structure 1, Lower Tariff Structure 1, and Lower Tariff Structure 2 are considered feasible if analyzed based on the Net Present Value (NPV), Internal Rate of Return (IRR), Benefit Cost Ratio (BCR), and Payback Period methods. (PP) but the Medium Tariff Structure 2 and the Upper Tariff Structure were declared unfeasible if analyzed using the same method. Sensitivity analysis shows that each Rusunawa rental rate structure has a different level of sensitivity to changes in variables, such as residential unit rental rates, management fees, and management fee subsidies provided by the Government.
SCHEDULING ANALYSIS IN CONSTRUCTION WITH THE PERT METHOD USING MICROSOFT PROJECT Prasetyo, Baskoro Adhi; Haris Muhammadun; Laksono Djoko Nugroho
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1099

Abstract

Since 2017, the Drinking Water Supply System (SPAM) of the Capital District (IKK) Ibu has not been functioning due to damage to the pipe network due to road widening work, damage to generators and pumps, thus PDAM West Halmahera will build a new SPAM network system with a gravity system and will analyze scheduling using the Program Evaluation and Review Technique (PERT) method using Microsoft Project 2021 to carry out development planning which has results where the time required for construction is 320 days and can be completed with a percentage level of 95.35%, with a critical path found in the implementation work occupational health and safety, preparation, piping work, procurement and installation of house connections and commissioning test work with a time of 273 days.
IMPROVING MOBILITY IN KEDIRI CITY WITH MKJI ANALYSIS 1997 AND TIME SLICE AT SIMPANG EMPAT DHOHO PLAZA Hidiyati, Evita Fitrianis; Nugroho, Laksono Djoko; Haris Muhammadun
International Journal Science and Technology Vol. 2 No. 3 (2023): November: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v2i3.1110

Abstract

The city of Kediri, as the third largest city in East Java, has cultural heritage, history and natural beauty that attracts visitors from various regions. However, population growth and motorized vehicles cause traffic jams. Signalized intersections, which are a solution to control intersection conflicts, require knowledge of intersection saturation flows to plan efficient traffic management. Analysis methods such as MKJI 1997 and Time Slice with Vehicle Operating Cost (BOK) calculations help design effective solutions. This research shows that adjusting cycle times, increasing effective width, and optimizing signals can improve transportation system performance and reduce congestion in Kediri City. Cycle time analysis taking into account factors such as vehicle type, traffic volume, and vehicle speed resulted in a cycle time of 90.7 seconds. The impact can be seen in the Degree of Saturation (DS) at various intersection arms, with service variations from E to F. Research also shows a decrease in waiting time/queuing for signal lights from 135 seconds to 118 seconds, which results in a decrease in the degree of saturation (DS) and changes in time cycle. The use of Smart Traffic Lights and traffic engineering, such as immediate left turns on the east arm and additional signs, is required. Evaluation of congestion cost efficiency shows that changing the value of side barriers can save Rp. 22,679,183 in the next five years.
ANALYSIS OF INVESTMENT IN THE DEVELOPMENT OF THE WATU ULO FISHERY PORT IN JEMBER DISTRICT REVIEWED FROM FINANCIAL ASPECTS AND SENSITIVITY ASPECTS Ratuinsani, Tati Mushalihati; Haris Muhammadun; Laksono Djoko Nugroho
International Journal Science and Technology Vol. 3 No. 2 (2024): July: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i2.1254

Abstract

Watu Ulo Beach is a concentration of fishing communities as a place to fill supplies to catch fish at sea and as a landing place for fish catches. The local government intends to build a fishing port in Watu Ulo to improve facilities and infrastructure for fishermen in catching fish. This study aims to determine the feasibility of investment in the development of fishing ports in terms of financial aspects and sensitivity. The research method uses three scenarios for the value of income, namely the pessimistic scenario, moderate scenario, optimistic scenario. The results of the financial feasibility analysis using the NPV, IRR, BCR, and PP methods were declared feasible for the moderate scenario and optimistic scenario while the pessimistic scenario analysis results were not feasible because the IRR (6.15%) < MARR (7.72%) The results of the sensitivity analysis stated that with three scenarios on the Value of Revenue and Operating Costs obtained the results of Sensitivity The value of revenue for the pessimistic scenario is sensitive at -13.67% if it is smaller than that the investment becomes unfeasible. The revenue value for the moderate sensitive scenario is -39.96% if it is smaller than that the investment becomes unfeasible. The value of income for an optimistic scenario is sensitive at -40.75% if it is smaller than that, the investment becomes unfeasible. The revenue value for the optimistic scenario is sensitive at -40.75%, if it is smaller than that, the investment is not feasible. And if the Operating Cost Sensitivity for the pessimistic scenario is sensitive at -15.96%, if it is smaller than that, the investment is not feasible. Operating Costs for a moderate sensitive scenario at +22.67% if it is greater than that, the investment becomes unfeasible. Operating Costs for the optimistic scenario are sensitive at 25.59% if greater than that then the investment becomes unviable.
Co-Authors Hidiyati, Evita Fitrianis Laksono Djoko Nugroho Laksono Djoko Nugroho Mawardianto, Hayadi Agus Prasetyo, Baskoro Adhi Ratuinsani, Tati Mushalihati Titin Rahayuningsih