Article Per Year (5 Year)
p-Index From 2020 - 2025
1.925
P-Index
This Author published in this journals
All Journal U Karst Jurnal Teknik Industri Terintegrasi (JUTIN) APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE) Jurnal Konstruksi
Mahendra, Muhammad Oka
Unknown Affiliation
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 14 Documents
Search

 1   2 
Analysis of Factors from The Parties That Are The Source of Causes of Contract Change in Infrastructure Project in Tangerang City-Banten Province Farihah, Iis Aisatul; Mahendra, Muhammad Oka; Mahendra, T.S. Hadi
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 5 No. 02 (2024)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v5i02.6823

Abstract

In the implementation of construction projects, problems cannot be avoided, one of which is contract change orders. This becomes a problem if it cannot be handled properly. Many factors cause change orders, including differences in understanding between stakeholders, owner requests, financial issues, scope differences, etc. SmartPLS software assessed and built a model with 13 causal change factors based on the literature review's structural relationships. The analysis technique in this research is the descriptive quantitative method. This method is used to obtain and examine structured and in-depth data that explains the behavior or circumstances being observed in depth and systematically. Data collected through the Google Form of 27 respondents to the Tangerang City PUPR Office project for improving and constructing city roads in the fiscal year 2023 were used in this study. In this study, two variables are the main focus in analyzing, in this case, the change order as an endogenous variable, and the project owner, contractor, and consultant as exogenous variables. The results of analysis using SEM-PLS found that the contractor variables have a significant effect on the occurrence of contract change orders by looking at the R-square value of 1.09 which can describe the amount of diversity that can be explained from the model built. The results of the analysis of the two types of variables are expected to be able to provide a comprehensive interpretation of the phenomenon of change orders that occur in the scope of construction, to take preventive action to prevent the occurrence of change orders, and researchers, the results of this study can be used as further study material to develop theories or related topics.
Optimalisasi Waktu dan Biaya dengan Penambahan Jam Kerja Lembur 3 Jam dan Shift Kerja Sudianto, Toto; Mahendra, Muhammad Oka; Putra, Al Fiillian Sah; Qishas, Haechal Fachar
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.43941

Abstract

In construction projects, delays often occur, causing increased costs and delays in completion. This study analyzes project acceleration with the crashing method on the Untirta Rectorate Building Construction Project, comparing the alternatives of 3-hour overtime and work Shifts. The goal is to determine the optimal project duration and cost. The analysis shows that there are 14 jobs on the critical path. The results of acceleration with 3-hour overtime resulted in a project cost of Rp3,104,007,500 with a duration of 431 days, while work Shifts require Rp1,280,228,250 with a duration of 427 days. The total slope cost for 3-hour overtime is Rp193,244,923.38, and work Shifts Rp36,611,338.93. Alternative cost comparison shows that overtime has direct costs of Rp49,158,386,780 and indirect costs of Rp3,971,376,850, while Shift work has direct costs of Rp47,334,607,530 and indirect costs of Rp3,962,700,980. Shift work is more efficient in terms of cost and time.
Analisis Pengaruh Pengetahuan K3, Sikap K3, dan Kesadaran Berperilaku K3 Terhadap Produktivitas Kerja Mahendra, Muhammad Oka; Putra, Al Fiillian Sah; Refiza, Hazazil Zabila
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.43943

Abstract

The success of a project is greatly influenced by the productivity of its workers. K3 is an indicator of the success of a project. This study aims to determine the effect of K3 knowledge on work productivity, to determine the effect of K3 attitudes on work productivity, to determine the effect of K3 behavioral awareness on work productivity. This type of research uses quantitative methods. Data collection techniques using questionnaires, unstructured interviews, field observations and literature studies. The sample in this study were construction workers at two building construction project locations totaling 125 respondents. The data analysis method used is descriptive analysis, instrument testing (validity testing and reliability testing), classical assumption testing (normality testing), multiple linear regression coefficient testing, and hypothesis testing (t-test, f-test, and coefficient of determination). The magnitude of the influence that has been proven through the determination coefficient test for the independent variable is 18.7% on the dependent variable which can be concluded that the independent variable does not have a large influence.
Analisis Kinerja Biaya dan Waktu dengan Metode Earned Value Analysis (Studi Kasus: Revitalisasi Pasar Gembrong Sukasari) Saputro, Teguh Eko; Mahendra, Muhammad Oka; Putra, Al Fiillian Sah
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.44077

Abstract

The construction industry in Indonesia continues to grow, yet projects often face deviations from initial plans, particularly concerning cost overruns and schedule delays. This study evaluates the cost and schedule performance of the Revitalization of Pasar Gembrong Sukasari Market using Earned Value Analysis (EVA), a quantitative method for monitoring project efficiency. Data were derived from weekly progress reports, S-curve projections, and the project’s budget plan (RAB). At week 35, the Planned Value (BCWS) was IDR 55,052,769,527.00, while the Earned Value (BCWP) and Actual Cost (ACWP) both amounted to IDR 49,830,463,809.67. The Cost Variance (CV) of IDR 0 and Cost Performance Index (CPI) of 1.00 indicated precise adherence to the budget. However, a Schedule Variance (SV) of -IDR 5,222,305,717.33 and a Schedule Performance Index (SPI) of 0.905 revealed significant schedule delays. These findings demonstrate that while the project maintained financial efficiency, critical time management inefficiencies led to schedule overruns. The study underscores the effectiveness of EVA in identifying performance gaps and highlights the need for improved scheduling strategies to align time and cost objectives in construction management.
Analisis Faktor Pengaruh Penerapan Smart Transportation Berbasis Persepsi Publik Mahendra, Muhammad Oka; Djuneydi, Muhammad
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2275

Abstract

Penelitian ini merupakan penelitian ex post facto dengan pendekatan kuantitatif. Hal ini bertujuan untuk menguji pengaruh Sistem Kontrol Lalu Lintas Lanjutan, transportasi bus, dan fasilitas layanan transportasi berbasis ICT lainnya terhadap kemungkinan penerapan transportasi cerdas berbasis persepsi publik untuk mendukung konsep kota cerdas di Kota Serang. Penelitian ini melibatkan 400 orang mulai dari usia 20 tahun hingga 60 tahun dari total 413.070 orang. Mereka dipilih menggunakan cluster random sampling. Data dikumpulkan dengan menggunakan kuesioner. Timbangan ukur yang digunakan adalah timbangan Likert modifikasi yang terdiri dari empat pilihan. Data dianalisis menggunakan statistik deskriptif dan statistik inferensial berupa regresi linier berganda. Hasil penelitian yang diperoleh antara lain: (a) Tidak ada pengaruh Sistem Kontrol Lalu Lintas Lanjutan terhadap kemungkinan penerapan transportasi cerdas, (b) Adanya pengaruh transportasi bus terhadap kemungkinan penerapan smart transportation, (c) Terdapat pengaruh fasilitas pelayanan transportasi berbasis ICT lainnya terhadap kemungkinan penerapan transportasi cerdas, (d) Terdapat pengaruh Sistem Kontrol Lalu Lintas Lanjutan, angkutan bus, dan fasilitas pelayanan transportasi berbasis ICT secara simultan terhadap kemungkinan penerapan transportasi cerdas berbasis persepsi masyarakat untuk mendukung konsep kota cerdas di Kota Serang, dan (e) Persamaan regresi pengaruh Sistem Kontrol Lalu Lintas Lanjutan, angkutan bus, dan fasilitas pelayanan transportasi berbasis ICT terhadap kemungkinan penerapan transportasi cerdas adalah Y = 5,502 + 0,072X1 + 0,168X2 + 0,321X.
Analisis Pengaruh Kinerja Lalu Lintas Terhadap Biaya Operasional Kendaraan Menggunakan Metode MKJI 1997 Putrinur, Shahnarani Ivanov; Mahendra, Muhammad Oka
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2281

Abstract

Anyer-Cilegon National Road is a vital section that experiences high density due to vehicle activity that often stops on the road, triggered by the use of sidewalks and shoulders as parking areas and street vendors' sales locations. This study adopts a quantitative approach through direct field surveys to collect primary data related to road capacity, traffic volume, side obstacles, vehicle speed, and vehicle operating costs (VOC) by referring to the 1997 MKJI method. The results of this study aim to analyze the effect of traffic performance on vehicle operating costs using the 1997 MKJI method. The results show that the level of road service is in the C-D category, with the implementation of alternative solutions successfully reducing operational costs by IDR 7.9 million. Although this reduction is not significant in nominal terms, the strategy is effective in minimizing fuel waste and spare part costs, reflecting the optimization of operational efficiency. These findings underline the importance of traffic management interventions, such as relocation of illegal parking activities and regulation of street vendors, to improve road service levels. Further research is recommended to explore the integration of smart parking technology and widening of traffic space to address the root causes of congestion in this strategic corridor.
Evaluasi Kapasitas Saluran Drainase Perkotaan Menggunakan Metode Hidrologi dan Hidraulik Soekma, Noerfhadilah Indra; Mahendra, Muhammad Oka
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2283

Abstract

Serang City, as the center of economic growth and government of Banten Province, faces the challenge of chronic waterlogging in the Cilegon-Serang Highway corridor due to the imbalance between infrastructure development and drainage capacity. This study aims to evaluate the performance of the drainage system through hydrological-hydraulic analysis based on historical rainfall data and channel capacity simulation. The results show that the majority of drainage channels do not meet the planned discharge capacity of 68%, with the dominant factors being sedimentation and channel slope design errors. Multivariate regression analysis reveals significant contributions from both factors to the frequency of waterlogging. The proposed technical solutions include channel dimension normalization, installation of sediment trap systems, and integration of green infrastructure (bioswales) to increase infiltration capacity, supported by participatory community monitoring mechanisms. These findings provide strategic recommendations to improve the resilience of urban drainage systems in the face of urbanization pressures and extreme climate phenomena, while emphasizing the importance of a multidisciplinary approach in sustainable infrastructure planning.
Pemilihan Moda Transportasi Umum Cilegon–Merak Menggunakan Metode Analytic Hierarchy Process Hevanda, Laska; Mahendra, Muhammad Oka
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.2288

Abstract

This study aims to determine the most optimal public transportation mode used by the public on the Cilegon-Merak route. The approach used is the Analytic Hierarchy Process (AHP) method by considering seven main criteria, namely: travel time, cost, comfort, safety, accessibility, punctuality, and availability of modes. Data were collected by distributing questionnaires to a number of stakeholders, including transportation users, Transportation Agency officers, academics, and railway officers. The results of the analysis show that local trains are the most optimal mode of transportation, indicated by the highest global score of 4.34, followed by buses and public transportation. These findings provide recommendations for policy makers to improve train services as the mainstay transportation in the Cilegon-Merak corridor.
Analisis Optimalisasi Waktu dan Biaya dengan Penambahan Jam Metode Time Cost Trade Off Mahendra, Muhammad Oka; Saputro, Teguh Eko; Putra, Al Fiillian Sah
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.44078

Abstract

Construction projects are bound by predefined schedules and budgets established from the outset. This study aims to optimize time and cost through a 3-hour daily overtime intervention, focusing on evaluating schedule acceleration effectiveness and resource efficiency. The Time Cost Trade Off (TCTO) method was applied via crashing techniques, systematically calculating cost-time trade-offs. Analysis centered on critical paths identified using the Critical Path Method (CPM), with schedule compression achieved through additional work hours. The findings reveal that the project duration was reduced from 180 days to 145 days, achieving a 35-day reduction (19.4%). This outcome demonstrates that targeted overtime interventions on critical activities optimize time allocation without compromising cost control, while affirming the relevance of the TCTO-CPM integrated approach in construction project management. overtime wages.
Penerapan Microsoft Project dalam Metode Crashing Terhadap Waktu dan Biaya Mahendra, Muhammad Oka; Saputro, Teguh Eko; Putra, Al Fiillian Sah
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 2 (2025): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i2.44080

Abstract

The PPLP Banten Building construction project experienced significant delays due to the extension of the implementation time, design revisions (shop drawings), and inaccurate material delivery. This study implemented a schedule compression strategy using Microsoft Project with two acceleration alternatives based on the AHSP standard. The crashing research method. The results of the study showed that the project duration was successfully shortened by 678 days with the 4-hour/day overtime alternative, while further work shift optimization reduced the duration to 530 days. Cost analysis showed differences between the two alternatives: with 4-hour/day overtime, the acceleration cost reached IDR3,066,675,000 (AHSP), while the work shift only cost IDR1,223,565,000 (AHSP). Comparison of cost slopes strengthened the advantages of work shifts: 4-hour/day overtime resulted in a cost slope of IDR193,067,245.23/day (AHSP), while the work shift only cost IDR33,638,199.58/day (AHSP). Evaluation of total costs (direct and indirect) also confirmed the efficiency of work shifts, with direct costs of Rp9,512,731,986.58 and indirect costs of Rp1,273,456,116.78, compared to 4 hours/day of overtime which required direct costs of Rp9,672,161,032.20 and indirect costs of Rp1,322,728,805.77.
Co-Authors Djuneydi, Muhammad Farihah, Iis Aisatul Hevanda, Laska Holiansyah Mahendra, T.S. Hadi Muhammad Iqbal Oktaviani, Andrea Putra, Al Fiillian Sah Putrinur, Shahnarani Ivanov Qishas, Haechal Fachar Refiza, Hazazil Zabila Saputro, Teguh Eko Soekma, Noerfhadilah Indra Sudianto, Toto