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Pemodelan Peningkatan Akurasi Estimasi Biaya Dengan Metode Structural Equation Modeling-Partial Least Square Pada Proyek Jalan Provinsi Kalimantan Tengah Christian, Yanda; Harimurti, Harimurti; Wijatmiko, Indradi
Rekayasa Sipil Vol 11, No 2 (2017)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (664.895 KB) | DOI: 10.21776/ub.rekayasasipil/2017.011.02.2

Abstract

Acceleration of national development increases the number of construction projects in Indonesia, including road projects. The contractor as the service provider in the implementation of the construction work shall have a detailed implementation schedule and project cost budget plan so that the construction work shall not be subject to delays and cost overrun. The main thing that can cause cost overrun is the error in cost estimation. In this study discusses the modeling of increasing the accuracy of cost estimation as well as the development of factors that can improve the accuracy of cost estimation. Validation of research variables was done to experts using Analytical Hierarchy Process (AHP) method and modeling using Structural Equation ModelingPartial Least Square (SEM-PLS) method to project contractor of Public Works Department of Central Kalimantan Province and National Road Implementation Center XI Unit Work of Central Kalimantan with contract value of project worth 20 Billion to 50 Billion Rupiah Year 2016. The result of variable validation shows the competence variable of estimator, survey, availability of information, calculation of cost estimation and internal company is variable which influence estimation The obtained modeling equation is AEB = 0,129 KE + 0.466 S + 0,191 KI + 0,153 PEB + 0,069 IP + 0,181 ζ. The development of cost estimation is done by improving each influential indicator in each variable and applying development strategies to increase the estimated cost estimation based on SWOT analysis. 
Alternatif Perkuatan Tanah Pasir Menggunakan Lapis Anyaman Bambu dengan Variasi Luas dan Jumlah Lapis Harimurti, Harimurti; Munawir, As'ad; Widodo, Dody
Rekayasa Sipil Vol 1, No 1 (2007)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.931 KB)

Abstract

Pengaruh penggunaan lapis anyaman bambu sebagai alternatif material perkuatan  tanah, terhadap nilai daya dukung batas pondasi dangkal pada tanah pasir dengan variasi  luas dan jumlah lapis ingin diketahui sehingga penggunaan lapis anyaman bambu dalam  luasan dan jumlah lapis yang tepat akan memberikan kontribusi perkuatan yang nyata pada  tanah.Dari hasil analisis didapat bahwa penggunaan lapis anyaman bambu memberikan  pengaruh terhadap nilai daya dukung tanah pasir. Variasi luas dan jumlah lapis anyaman  bambu memberikan peningkatan pada kemampuan daya dukung batas tanah terhadap  beban dan juga peningkatan terhadap rasio daya dukung tanah, dimana konfigurasi yang  memberikan nilai tertinggi adalah 3 lapis luasan (80x80) cm2 dengan nilai rasio daya  dukung sebesar 3,83. Setelah mengetahui adanya peningkatan nilai daya dukung batas  maupun rasio daya dukung pada tanah dengan adanya material perkuatan anyaman bambu  dengan variasi luas dan jumlah lapis, perlu adanya penambahan variasi dan penelitian yang  lebih khusus mengenai anyaman bambu untuk mendapatkan hasil yang optimal.  Kata 
Analisis Tingkat Risiko Proyek Pelaksanaan Pemeliharaan Jalan Untuk Meningkatkan Kinerja Mutu Proyek Jalan Di Kabupaten Malang Bowo Nyata Utama, Robertus Tri; Setyowati, Edhi Wahjuni; Harimurti, Harimurti
Rekayasa Sipil Vol 11, No 3 (2017)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.153 KB) | DOI: 10.21776/ub.rekayasasipil/2017.011.03.6

Abstract

In every road maintenance project implementation there are always unpredictable risks affecting the quality of the project performance. This study aims to obtain the most dominant risks affecting the quality performance of road maintenance projects in Malang Regency using Analysis Hierarchy Process (AHP) method and Multiple Linear Regression. The AHP method was chosen to observe the highest level of the risk, while the Multiple Linear Regression method was selected to find risk events which have significant effect upon the quality degradation of the project. The results showed that the risk of material specification insufficiency reaches the highest risk level with risk factor value of 0.584, while the risking events caused by materials and human resources insufficiency is the most significant influences affecting the quality degradation of the project performance.
Perspektif Konsultan Pajak Terhadap Core Tax Administration System pada Tahun 2024 di Kota Surakarta Butarbutar, Hanna Juwita M; Karunia, Asaprima Putra; Harimurti, Harimurti
FISCAL: Jurnal Akuntansi dan Perpajakan Vol. 2 No. 2 (2024): JURNAL FISCAL: AKUNTANSI DAN PERPAJAKAN
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/jap.v2i2.20612

Abstract

Modernisasi administrasi perpajakan yang difasilitasi DJP banyak memberikan kemudahan bagi wajib pajak, namun masih ada wajib pajak yang menganggap sistem DJP sulit dipahami. Semakin mudah sistem administrasi perpajakan dipahami, maka kepatuhan wajib pajak akan semakin meningkat sehingga mampu memengaruhi penerimaan pajak. DJP memikirkan cara agar sistem administrasi perpajakan dapat memproses data lebih cepat dan mampu menyimpan data lebih banyak. DJP saat ini sedang merancang sistem bernama Core Tax Administration System (CTAS) yang diyakini akan lebih mudah dipahami oleh wajib pajak. DJP melalui CTAS mendigitalisasi proses registrasi berupa profil lengkap wajib pajak termasuk pemadanan NIK menjadi NPWP, prepopulated SPT, penggabungan aplikasi pendukung djp online, pertukaran informasi dengan lembaga-lembaga keuangan dan masih banyak layanan lainnya. Banyak wajib pajak yang bergantung pada konsultan pajak agar tidak ada kesalahan dalam mengelola administrasi perpajakannya. Konsultan pajak sebagai penghubung antara wajib pajak dengan kantor pajak tentu harus lebih paham tentang sistem perpajakan di Indonesia. Wawancara telah dilakukan dengan beberapa konsultan pajak di Kota Surakarta untuk mengetahui sejauh mana dampak CTAS terhadap kinerja konsultan pajak.  
Evaluation of Production Efficiency in Asphalt Mixing Plant Using Lean Concept Based on TIMWOOD Putra, Dio Adelian; Devia, Yatnanta Padma; Harimurti, Harimurti
Journal of International Conference Proceedings Vol 7, No 5 (2024): 2024 ICPM Bali Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v7i5.3630

Abstract

This study aims to assess the effectiveness of the lean concept in improving production efficiency in an asphalt mixing plant. The research emphasizes the need to reduce waste by applying the TIMWOOD principles, which target minimizing transportation, inventory, motion, waiting, overproduction, overprocessing, and defects. By identifying and eliminating non-value-adding activities, this study seeks to enhance overall production efficiency and resource utilization. The findings reveal significant efficiency improvements, with a 50% reduction in average processing time and a 46.14% decrease in total processing time after implementing the lean concept. These results demonstrate that the lean approach enhances productivity by optimizing production time, reducing operational waste, and improving workflow efficiency. Furthermore, the research underscores the practical implications of adopting lean principles, suggesting they can be a sustainable strategy for asphalt plants to boost operational efficiency, decrease production costs, improve resource allocation, and strengthen competitiveness in the industry. This study provides actionable insights for industries aiming to implement lean manufacturing concepts effectively