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All Journal Jurnal Rekayasa Sipil Civil Engineering Journal IJTI (International Journal Of Transportation And Infrastructure) IJIEEB : International Journal of Integrated Education, Engineering and Business Proceeding of World Conference Journal of Applied Science, Engineering, Technology, and Education NEUTRON : Research from all areas of the Civil Engineering Jurnal Impresi Indonesia
Anjas Handayani
Universitas Mercu Buana
Religion Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Social Sciences Transportation Other

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Analysis of Transjakarta Bus Rapid Transit Infrastructure Services on Customer Satisfaction Performance with Large-Scale Social Restrictions in DKI Jakarta Sunandar Ali; Anjas Handayani; Mohammad Sobirin; Mohammad Erzal Audifikria
IJTI International Journal of Transportation and Infrastructure eISSN 2597-4769 pISSN 2597-4734 Vol 5 No 01 (2021): September 2021
Publisher : NAROTAMA UNIVERSITY, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29138/ijti.v5i01.1506

Abstract

Quality service is a form of service that are provided by service providers in order to meet the needs of its customers. However, the Covid-19 pandemics has affected the quality of services, including the service of BRT Trans Jakarta. This can have a serious impact if not handled properly and can reduced customer satisfaction with these services. The purpose of this study is to determine the dominant factors that influence the infrastructure services of the Trans Jakarta BRT, to determine the quality of service on customer satisfaction performance during the large-scale social restrictions in DKI Jakarta. The purpose of this study is to find out the dominant factors that influence the infrastructure services of the BRT Trans Jakarta and to determine the quality of service on customer satisfaction performance during the large-scale social restrictions in DKI Jakarta. The concept studies used in this research are service, infrastructure, service quality, and customer satisfaction. This study used quantitative approach along with CSI (Customer Satisfaction Index) method and analysis of the level of conformity of IPA (Importance - Performance Analysis), the sampling system used were incidental sampling with the BRT Trans Jakarta user analysis unit during the large-scale social restrictions in DKI Jakarta. The results showed that the customer satisfaction index for BRT Trans Jakarta infrastructure services during the PSBB was 75.54% for the CSI value and IPA value of 98.54%, and the customer satisfaction criteria were in the Satisfied category.
Analisis Pengendalian Mutu Pekerjaan Timbunan Random Batu pada Proyek Pembangunan Bendungan Way Apu Batista, Erwin; Handayani , Anjas
Jurnal Impresi Indonesia Vol. 4 No. 8 (2025): Jurnal Impresi Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i8.6964

Abstract

Dam is a structure consisting of earth, rock, and concrete embankments built to retain and contain water. Dam embankment work is generally carried out with the longest schedule during each dry season. The Way Apu Dam Construction Project experienced flooding due to the overflow of the Way Teba river exceeding the cofferdam on July 5, 2024, which could potentially reduce the quality of random rock embankment work. This study aims to analyze the factors that influence quality control of random rock embankment work using quantitative descriptive methods through statistical analysis with SPSS software. Data was collected through questionnaires to 44 respondents involved in the project. Factors influencing quality control were determined by multiple linear regression tests using the stepwise method. The results showed that there are 4 significant variables: "Worker Awareness in Quality Assurance and Control", "Documentation of Monitoring and Measurement Results at Each Stage of Work", "Documentation of Material Loading Checked by Field Director/Consultant", "Report on Hazard Identification, Risk Assessment, Control and Opportunities for Construction Safety" with F_count value = 34.334. The most dominant variable is "Worker Awareness in Quality Assurance and Control" based on T_count value = 8.929.
The Influence of Precursor to Activator Ratio and Curing Temperature on Geopolymer Paste with One-Part Method Widayanti, Ari; Ekaputri, Januarti J.; Amini, Iqlima N.; Petrus, Himawan T. B. M.; Putri, Anandita Ade; Soemitro, Ria A. A.; Handayani, Anjas
Civil Engineering Journal Vol. 11 No. 7 (2025): July
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-07-014

Abstract

Geopolymer is an eco-friendly material that serves as a sustainable alternative to Portland cement in construction. This binder reduces carbon dioxide emissions from cement production. However, its manufacturing process remains complex and requires professional expertise. This study explores an environmentally friendly cement produced through the “One-Part Method” (or the “just add water” method), which simplifies geopolymer application, making it as user-friendly as Portland cement. However, research on the performance of one-part geopolymers with varying activator contents and curing temperatures remains limited. In this study, Class F fly ash was used as a precursor, combined with a dry activator made from geothermal sludge and sodium hydroxide (NaOH). Two compositions were tested with precursor-to-dry activator ratios of 5:1 (OPG-F5F) and 7:1 (OPG-F7F). The compressive strength was significantly influenced by the Si/Al, Na/Si, Na/Al, and water/solid ratios derived from the precursor and activator. Mechanical properties were analyzed at three curing temperatures: ambient, 40°C, and 60°C. Results showed that OPG-F7F achieved the highest strength at 60°C, reaching 76.1 MPa at 28 days. Mineral analysis before and after steam curing revealed no changes in composition, while morphological analysis indicated that higher temperatures produced a denser geopolymer matrix. These findings demonstrate the strong potential of geopolymer cement as a viable Portland cement replacement using the One-Part Method.
Analisis Perbandingan Penerapan Metode Earned Value dan Earned Schedule pada Pelaksanaan Proyek Konstruksi Underpass XYZ Anggraeni, Resti; Handayani, Anjas
Rekayasa Sipil Vol 14, No 2 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jrs.2025.v14.i2.10

Abstract

Dalam suatu proyek konstruksi kerap kali terjadi keterlambatan dari jadwal yang ditentukan, sehingga diperlukan prediksi durasi penyelesaian proyek. Pada penelitian ini dilakukan perbandingan akurasi perhitungan Metode Earned Value dan Earned Schedule dalam memprediksi durasi akhir proyek dengan durasi penyelesaian proyek aktual sebesar 116 minggu. Berdasarkan perhitungan dengan metode Earned Value didapatkan hasil prediksi penyelesaian proyek pada minggu ke-38 yaitu selama 128,9 minggu, pada minggu ke-52 selama 126,9 minggu, pada minggu ke-79 selama 122,2 minggu, pada minggu ke-104 selama 116,3 minggu, pada minggu ke-105 selama 116,2 minggu. Sedangkan berdasarkan perhitungan dengan metode Earned Schedule didapatkan hasil prediksi penyelesaian proyek pada minggu ke-38 yaitu selama 246,4 minggu, pada minggu ke-52 selama 137,6 minggu, pada minggu ke-79 selama 146,0 minggu, pada minggu ke-104 selama 117,1 minggu, pada minggu ke-105 selama 118,0 minggu.  Dari hasil tersebut terlihat bahwa prediksi waktu penyelesaian proyek lebih akurat dengan menggunakan metode Earned Value.
Co-Authors Abid Nur Affani Ali Sunandar Amini, Iqlima N. Anandita Ade Putri, Anandita Ade Anggraeni, Resti Ari Widayanti Batista, Erwin Christianto Yuppie Setyatama Deviana Cahyani Ekaputri, Januarti J. Fariz Gading Pangestyo Irma Tiara, Irma Jonathan Harris Sianipar Komarul Umam Mochamad Elvan Reza Mohammad Erzal Audifikria Mohammad Sobirin Novika Candra F Petrus, Himawan T. B. M. Ria A. A. Soemitro, Ria A. A. Setyatama, Christianto Yuppie