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All Journal Formosa Journal of Science and Technology (FJST)
Andi Patriadi
Civil Engineering Master's Study Program, Faculty of Engineering Universitas 17 Agustus 1945 Surabaya
Humanities Computer Science & IT Education Industrial & Manufacturing Engineering Social Sciences

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Examination Of Investment Viability Through ROI and BCR Regarding The Creation Of A WebGIS-Based Road Damage Management Software At The Mojokerto PJJ UPT Andy Martono; Budi Witjaksana; Andi Patriadi
Formosa Journal of Science and Technology Vol. 5 No. 6 (2026): June 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i6.100

Abstract

Public participation in reporting road conditions is increasing through digital-based road damage complaint applications. However, handling road damage complaints is still hampered by inaccurate data, inadequate system monitoring of repairs and quality, manual management of costs and repair history, and a lack of data integration. This situation necessitates repair cost analysis for each repair, documentation of damage history and repair methods, and WebGIS-based spatial mapping of repairs to ensure data is documented, tracked, and analyzed more systematically for monitoring and evaluating road maintenance within a single system. This research is important to conduct because it can contribute to the development of a WebGIS-based road maintenance monitoring and evaluation system integrated with road damage complaints. The research not only analyzes the condition of road damage and repairs, but also analyzes the economic feasibility of developing WebGIS using the ROI and BCR methods. The results of the research are expected to help road management agencies in improving the effectiveness and efficiency of road maintenance through the use of WebGIS technology. The feasibility analysis of WebGIS investment using the ROI method yielded a positive ROI of 76.90%, making it financially viable. The calculated BCR value of 1.68 indicates that the benefits of WebGIS development are financially viable (BCR > 1)
Examination of Time Management Techniques Derived From Critical Path Method (CPM) Findings to Meet the Completion Goal For the Construction Project of the Central Kalimantan Public School Vendy Eka Saputra; Budi Witjaksana; Andi Patriadi
Formosa Journal of Science and Technology Vol. 5 No. 7 (2026): July 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i7.118

Abstract

The Central Kalimantan Public School Construction Project involves building activities at several sites with varying conditions, such as peat soil, difficulties in transportation, severe weather, and limitations in material supply. These factors could affect the overall expenses and timelines of the project, highlighting the need to analyze their impact on how well the project performs. This research intends to examine the timeline for the Central Kalimantan Public School Construction Project and assess how well the schedule is monitored through the Critical Path Method (CPM). A case study was conducted using both descriptive and evaluative techniques. The information gathered included the original contract, any modifications, schedules, and reports on work progress. The CPM analysis was performed to pinpoint the critical path and the key activities that could affect the project's duration. The findings suggest that the conditions of the site have an effect on the project's timeline. The CPM analysis identified vital activities that need to be managed to achieve the project's completion goals. Using the CPM approach can help in controlling the schedule and in making informed decisions during the project's implementation
Analysis of Project Time Implementation on Dominant Variables Influencing DED Development Performance Using the CPM (Critical Path Method) Method in the Design and Build Contract in the Ministry of Health's Batch 3 PHTC Program (Case Study: Construction of the West Muna District Hospital) Abdul Khohar; Budi Witjaksana; Andi Patriadi
Formosa Journal of Science and Technology Vol. 5 No. 7 (2026): July 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjst.v5i7.102

Abstract

This study aims to analyze the factors influencing the Detailed Engineering Design (DED) Development Performance for the West Muna Regency Regional General Hospital (RSUD) construction project using the Design and Build method, as well as the implications of these dominant factors on project implementation time. The research variables consist of Basic Design Quality (X1), Compliance Level with the DKPPK (X2), and Conformity to Field Conditions (X3) on DED Development Performance (Y). Data were obtained from 31 respondents consisting of the PPK (Commissioner of Works), the Ministry of Health Technical Team, Construction Management Consultants, Design Consultants, and Design and Build Service Providers. The CPM analysis results indicate a project completion duration of 343 days, a 48-day deviation from the remaining contract duration of 295 days. The project's critical path consists of planning and permitting, foundations, earthworks, floor structures 1–3, floor architecture 3, attached interiors 3, loose furniture 3, testing and commissioning, and handover. This study concludes that suitability of field conditions is the most dominant factor influencing the performance of DED development and has direct implications for achieving project implementation timelines
Co-Authors Abdul Khohar Andy Martono Budi Witjaksana Vendy Eka Saputra