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Hasibuan, Gina Cynthia Raphita
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Journal : Astonjadro

 1 
The Analysis of Lateral Deformation of Diaphragm Wall by Using 2-Dimensional Finite Element Method in Basement Construction of the BRI Tower Medan Putri, Vini Rizki Eka; Roesyanto, Roesyanto; Hasibuan, Gina Cynthia Raphita; Surbakti, Rudianto
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.16027

Abstract

Land availability for multi-storey buildings can be managed by constructing a multi-storey building with a basement. The basement construction of Menara BRI Medan is surrounded by office buildings. The soil is composed of sand, medium sand, clay silt, and gravel, resulting in the construction of a retaining wall comprised of a diaphragm wall 17,50 meters deep with a wall thickness of 0,60 meters. During the deep excavation work, the diaphragm wall was reinforced by temporary supports (strut). The strut installation consists of 2 layers with a distance of 3 meters in between struts. This minimizes the deformation that occurs. The lateral deformation was calculated using the finite element method in PLAXIS 2D with Mohr-Coulomb soil modeling at drill point BH-02. The deformation results in PLAXIS 2D will be compared with the on-site monitoring results by taking Inclinometer-I2 measurements. The result of the lateral deformation of the diaphragm wall from the analysis using PLAXIS 2D modeling was found to be 7,72 mm. In addition, the lateral deformation value from the monitoring results during the measurement of inclinometer-I2 on site was 7,55 mm. However, during the comparison between the deformation results in PLAXIS 2D and the monitoring results on site, discrepancies were identified due to alterations of parameters during the execution of the deep excavation work.
The Usage of Surface Distress Index (SDI) and Pavement Condition Index (PCI) to Evaluate The Condition of Jamin Ginting National Road (BTS. Medan City - BTS. Karo Regency) Brahmana, Ivana Christine Sembiring; Hasibuan, Gina Cynthia Raphita; Anas, Muhammad Ridwan
ASTONJADRO Vol. 13 No. 3 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i3.16028

Abstract

Considering the importance of national roads, it is necessary to conduct a review of maintenance strategies based on Minister of Public Works Regulation No. 13/PRT/M/2011 where road maintenance is a road handling activity, in the form of prevention, maintenance and repairs needed to maintain the condition of the road so that it continues to function optimally and serve the road so that the specified life plan can be achieved. The results of research carried out using the Pavement Condition Index (PCI) method for the Bts direction. Medan City – Bts. Regency. Karo is in "Good" condition and the strategy for maintenance is Routine Maintenance along 5.8 Km, Preventive Maintenance along 1.6 Km, Rehabilitation along 0.9 Km, Major Rehabilitation along 1.7 Km at IDR 5,278,395,170.
Analysis of Secondary Local Road Conditions Using the Surface Distress Index (SDI) Method in Medan Amplas District Lubis, Edo Rizki Pradana; Hasibuan, Gina Cynthia Raphita; Anas, M. Ridwan
ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i1.16884

Abstract

Road network data and information and spatial supporting infrastructure are important to a road database management planning process. Medan Amplas District, Medan City has a road network divided into national authority roads, provincial roads and city roads, which is 143.14 km. The study area in this research is a flexible pavement-type secondary local road with a length of 33.12 km. The method used in this research is the Surface Distress Index (SDI) Method. SDI divides road conditions into 4, namely good condition, moderate condition, lightly damaged condition and heavily damaged condition. According to RCS or SKJ 2011, there are only 4 elements that are used as support for calculating the SDI value, namely % crack area, average crack width, number of holes, and average rutting depth. From the results of the analysis of the level of road damage in secondary local roads with flexible pavement type in Medan Amplas District, namely 51 road sections in good condition (98%) and 1 road section in fair condition (2%). It can be concluded that the condition of Secondary Local roads in Medan Amplas District is in good condition and only requires routine maintenance at certain points on each road section. The condition of the Secondary Local roads in Medan Amplas District using the SDI Method is in Good Rating, but the Denai River Inspection Road section has a rating of moderate damage.
The Characteristics of Trans Metro Deli Bus Passengers in Medan Fitri, Fadilla; Hasibuan, Gina Cynthia Raphita; Anas, M. Ridwan
ASTONJADRO Vol. 14 No. 1 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i1.17174

Abstract

As the government’s response to the areas in developing countries, they took steps to reform the existing public transportation service system, one of which is by implementing the Trans Metro Deli (TMD) bus system, a revolutionary public transportation system. Intended to improve mobility and reduce congestion, TMD has become a symbol of transformation in urban transportation in Medan. TMD strives to provide reliable, affordable, and efficient public transportation services for Medan residents. The purpose of this study is to analyze the existing conditions of Trans Metro Deli buses and the characteristics of passengers by using questionnaires and descriptive analysis. The research results show that the existing conditions based on the Minimum Service Standards (Standar Pelayanan Minimal PM 27 Tahun 2015) regarding security, safety, and comfort are respectively 66,66%; 56,25%; and 72,72% which means that the existing conditions of the Trans Metro Deli bus have not been complied 100% based on the Minimum Service Standards PM 27 of 20115 (Standar Pelayanan Minimal PM 27 Tahun 2015). The results of the descriptive analysis study for the characteristics of passengers who use the Trans Metro Deli buses, based on gender which is 80% female, resides in Medan is 88%, are aged 15-25 years old is 78%, employment is 82% students, in-family roles as children is 90%, none ownership of vehicle is 49%, income < Rp500.000 is 49%, travel origination of house/boarding house/rent house is 61%, travel destination is 42% school/college, travel frequency 2 times per day is 53%, travel frequency 26-30 times per month is 38%, travel mode from the origin to the bus stop by walking is 37%, travel mode from the bus stop to the destination by walking is 52%, travel distance from the origin to the bus stop > 400 meter is 33%, travel distance from the bus stop to the destination > 400 meter is 37%, 15-30 minutes travel time by Trans Metro Deli bus is 37% , < 15 minutes travel time from the origin to the bus stop is 65%, < 15 minutes travel time from the bus stop to the destination is 33%, travel cost from the origin to the bus stop Rp2000 – 4000 is 45%, and travel cost from the bus stop to the destination Rp2000 – 4000 is 43%.
The Analysis of Rescheduling the Savanna Sumatera Bridge Project Using the Pert Method Panjaitan, Alfin Lambok Pascatama; Hasibuan, Gina Cynthia Raphita; Anas, M. Ridwan
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17302

Abstract

Project schedules are generally created manually, which may lead to delays during the implementation on-site. It is due to the non-inclusion of the uncertainty factor in planning the project schedule. Delays in accomplishing one activity will result in delays in the next one. This study was intended to conduct rescheduling process to minimize the delay in the implementation of the Savanna Sumatera Bridge Project. The study applied PERT method in the rescheduling exercise by using three times conjectures on each project work item, which are: optimistic duration, most likely duration, and pessimistic duration. The results showed that the project was completed in 162 working days with a probability of completion of 99.9%, 34 days faster than the target project duration of 196 working days.
Evaluation of Trans Metro Deli Bus Performance in Corridor 2 in an Effort to Improve the Quality of Public Services Silalahi, Putri Permata; Hasibuan, Gina Cynthia Raphita; Anas, Ridwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17923

Abstract

TransMetro Deli Urban Transport is a bus-based transportation system in Medan City that started operating on 22 November 2020, with a Bus Rapid Transit (BRT) transportation system. TransMetro Deli buses provide 5 corridors around the area in Medan City. For Route K2M Terminal Amplas - Bank Indonesia - Terminal Amplas has a fleet of 10 main units and 2 backup units and passes 36 stops. This research begins with collecting data in the field directly and then analyzed including load factor, Headway, stopping time, and travel time on Weekdays and Weekends on the K2M route. Based on the analysis results obtained for Load Factor in Weekdays for Morning, Afternoon, and Evening are 14%, 8%, and 20%, while for Weekend are 12%, 15%, and 20%. For Headway in Weekdays in the Morning, Afternoon, and Evening are 10 minutes 16 seconds, 10 minutes 27 seconds, and 11 minutes 31 seconds, while in Weekend are 9 minutes 47 seconds, 9 minutes 40 seconds, and 10 minutes 2 seconds. For Downtime on Weekdays in the Morning, Afternoon, and Evening are 9 seconds, 9 seconds, and 10 seconds, while for Weekend are 7 seconds, 7 seconds, and 8 seconds. For Travel Time in Weekdays in the Morning, Afternoon, and Evening are 1 hour 13 minutes, 1 hour 16 minutes, and 1 hour 18 minutes, while in Weekend are 1 hour 3 minutes, 1 hour 14 minutes, and 1 hour 13 minutes.
Parking Space Requirement Analysis at the University of North Sumatra General Hospital Susila, Hermanta; Hasibuan, Gina Cynthia Raphita; Anas, Ridwan
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17952

Abstract

Hospitals are places of activity that provide vital services to the community. In reality, most hospitals are faced with the problem of providing parking facilities. One of them is the difficulty of providing parking space facilities that match the actual level of demand. The aim of the research is to obtain information on parking demand by modelling car and motorcycle parking. The methods used are linear regression and non-linear regression methods. On poly days for car parking demand with the equation: Y₁=8.166×10-89× 41.386 X₁ and motorcycles with the equation: Y₂=7553.126-1112960.605/X₁, Y₂=6033.071-1392502.512/X₂, and Y₂=6389.337-1570378.771/X₃. On non-poly days for car parking demand with the equation: Y₁=868,250-3,250X₂ and motorcycles with the equation: Y₂=-457,000 + 6,000X₄.
Critical Success Factor Analysis of Asphalt Pavement Works of North Sumatera Province Roads in Mandailing Natal Regency Hasibuan, Asrul Hanafi; Ridwan, M.; Hasibuan, Gina Cynthia Raphita
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18363

Abstract

From www.portibinews.com regarding the Audit Results Report of the North Sumatra Representative Audit Agency which was issued on May 26 2022 that the work at the North Sumatra Province Public Works and Spatial Planning Service in the 2020 budget year was Improvement of the Provincial Road Structure of the Jembatan Merah – Muarasoma Road Section in Mandailing Natal Regency there is a lack of volume and a lack of quality of work. The physical inspection of this work was carried out together with the Budget User Authority (KPA), the Activity Technical Implementation Officer (PPTK), the Supervisory Consultant, and the North Sumatra Province Inspectorate. This is the basis for this study to analyze the Critical Success Factor (CSF), identify CSFs that have a significant effect on the success of the implementation of asphalt paving work on North Sumatra Province roads in Mandailing Natal Regency and analyze the effect of CSFs on the achievement of performance indicators. The Partial Least Square - Structural Equation Modeling (PLS-SEM) analysis method is used in this study to analyze the CSF performance of the implementation of asphalt paving work on North Sumatra Province roads in Mandailing Natal Regency. This analysis method uses the help of Smart PLS software. PLS-SEM is more suitable for developing exploratory research that has limited theory development and PLS-SEM is also more suitable for use if the research data is ordinal (eg: Likert scale) and nominal and ignores normally distributed data (nonparametric). The results of the analysis show that the Critical Success Factor that has an impact on the success of the implementation of asphalt paving work on North Sumatra Province roads in Mandailing Natal Regency is the supervision factor with a value of 0.406 having the greatest impact. Other factors such as labor factors (0.281), environmental standard factors (0.228), quality test standard factors (0.214), equipment factors (0.176) have a moderate impact, while design error factors (0.109), material factors (0.088), work method factors (0.026) have a small impact. On the other hand, the factors that significantly influence the success of the implementation of asphalt paving work on North Sumatra Province roads in Mandailing Natal Regency in achieving performance indicators are the work method factor (X4), the quality test standard factor (X5), the environmental standard factor (X6), the supervision factor (X7), and the design error factor (X8). Overall, the Critical Success Factor factors for the performance of the implementation of asphalt paving work on North Sumatra Province roads in Mandailing Natal Regency influence the success in achieving performance indicators by 15.3%, while other variables outside this regression model influence the rest (100 - 15.3 = 84.7%).
Co-Authors Ade pradipta Putri Al Fath, Muhammad Thoriq Alamsyah, Vandria Anas , M. Ridwan Anas, M. Ridwan Anas, Muhammad Ridwan Angel Angel Anthoni Veery Mardianta Brahmana, Ivana Christine Sembiring Catherine, Ester Sara Dalimunthe, Nisaul Fadilah Daulay, Rizky Ansyori Fath, Muhammad Thoriq Al Fitri, Fadilla Girsang, Arisman Gusferi, Irfan Hasibuan, Asrul Hanafi Hasibuan, Fery Hamonangan Kwek, Philip Lubis, Agussalim Lubis, Edo Rizki Pradana M. Ridwan Marpaung, Masista Matondang, Venansia Roulina Michael Michael Muhammad Aswin Muhammad Fajar Muhammad Hendra S Ginting Mulia, Ahmad Perwira Nasution, Dea Amanda Sari Nasution, Juan Akmal Nasution, Zaid Perdana Nursyamsi Nursyamsi Panjaitan, Alfin Lambok Pascatama Purba, Yosua Putri, Vini Rizki Eka Ramadhan, Aravi Zalsa Rambe, Janeta Fazriah Ricky Bakara Ridwan Anas, Ridwan Roesyanto Sara, Ester Catherine Sari, Indah Mutya Sembiring, Dicky Andrea Sembiring, Robi Arianta Sidabutar, Rivaldi Silalahi, Putri Permata Sinaga, Yoppy Tigor Mario Sitorus, Frarev Robbyan Joshua Soraya Muthma Innah Nasution Sundari, Risky Fajar Surbakti, Paschalia Retnoningtyas Surbakti, Rudianto Susila, Hermanta Tania Alda TARIGAN, Johannes Tarigan, Rallya Napinia Vazelim, Valencia