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All Journal Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Jurnal Talenta Sipil Journal of Civil Engineering and Vocational Education
Aszharri, Arief
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Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Transportation

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Analisis Kinerja Operasional Light Rail Transit (LRT) Stasiun Demang Kota Palembang Sari, Nadra Mutiara; Aszharri, Arief; Anggraini, Nita; Praditya, Norca
Jurnal Talenta Sipil Vol 7, No 2 (2024): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v7i2.627

Abstract

This research examines the operational performance and user satisfaction of the Light Rail Transit (LRT) mass transportation system in Palembang City, particularly on the LRT Demang Lebar Daun station corridor. The study involves the collection of primary and secondary data, including passenger numbers, waiting times, travel intervals, and travel times. The research results indicate that the average number of passengers per LRT station is approximately 10 passengers, resulting in a load factor ranging from 9% to 11%. While passenger comfort levels are relatively high, this low ridership may impact operational efficiency. The waiting times and travel intervals of the LRT are relatively short, enhancing passenger comfort, but warrant operational considerations. Furthermore, the study notes that the round-trip travel time on the LRT is approximately 2 hours, 33 minutes, and 57 seconds. However, limited parking facilities at the Demang Lebar Daun station can affect the interest in using the LRT. In order to improve operational performance and user satisfaction of the LRT, this research recommends an evaluation of travel intervals, waiting times, and daily LRT trip numbers. Additionally, improvements in parking facilities at LRT stations should be considered to enhance the convenience of using this mode of transportation.
Kinerja Struktur Perkerasan Aspal Porus Modifikasi dengan Pemodelan Program KENPAVE: Performance of Modified Porous Asphalt Pavement Structures Using the KENPAVE Program Modeling Aszharri, Arief; Susetyo, Dimas Ariezky; Sulaiman, Suherman
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.363

Abstract

Flexible pavement planning methods can be classified into five categories, namely empirical methods, methods for limiting shear failure, methods for limiting deflection, regression methods based on pavement performance or road tests and empirical mechanistic methods. Pavement design procedures can be modeled as several layers or viscoelastic structures in an elastic band. By estimating that the pavement structure is like this, it is possible to calculate the stresses, strains, or deflections caused by traffic loads and environmental factors. This research will evaluate the construction structure of a porous asphalt mixture using cariphalte modified asphalt and the addition of gilsonite on a road section with a high traffic volume with an LHR above 50,000 pavement vehicles so that the thickness of the pavement structure layer will be obtained and then evaluated using the KENPAVE program. The results of this study show that the structural performance of porous asphalt mixtures with the addition of gilsonite in the pavement structure increases not significantly with increasing permit repetition loads at fatigue crack damage criteria of 0.5% and 0.45% for segment 4 and segment 5 respectively. Segment 3 showed a significant increase in the permit repetition load of 26.3% compared to the normal mixture. The structural performance of porous asphalt mixtures with the addition of gilsonite in the pavement structure increases insignificantly with the increase in the repetition permit load on the criteria for used grooves from vehicle wheels by 0.42% and 0.74% respectively for segment 4 and segment 5. However, in segment 3, there was a significant increase in the permit repetition load of 30.5% compared to the normal mixture.
Permeability and Dynamic Stability in Porous Asphalt Mixtures Using Cariphalte Asphalt and Gilsonite Additives Aszharri, Arief; Sari, Nadra Mutiara
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.624

Abstract

Porous asphalt mixture is a new generation of flexible pavement that allows water to seep into the top layer (wearing course) both vertically and horizontally. This condition is possible, because the gradation used has a coarse aggregate fraction of not less than 85% of the mixture volume. This layer uses an open gradation (open graded) which is spread over a layer of waterproof asphalt to prevent seepage into the road foundation. This porous asphalt layer can effectively provide a greater level of safety, especially during rainy times to prevent aqua-planing, resulting in rougher surface roughness and can reduce noise (noise reduction). In this research, a test will be carried out on porous asphalt with a mixture using Cariphalte modified asphalt and gilsonite as the added ingredient. Variations in asphalt content used are 4%, 5%, 6%, 7%, 8%. Determination of variations in levels of variation is based on research that has been conducted. This research involves analysis of calculation results based on experimental data from laboratory scale experiments including Marshall Testing, Immersion Index, Permeability, Slip Resistance, Dynamic Stability, and Resilient Modulus. The test results show that the smallest permeability value is in the 8% gilsonite mixture but it does not meet the requirements of AAPA 2004 so the mixture with the greatest stability value is used. From the results of dynamic stability testing, it shows that the mixture of test objects with a content of 7% gilsonite has a dynamic stability value of 5250 passes/mm at a temperature of 45°C and 3150 passes/mm at a temperature of 60°C.
Structural Improvement Planning of Road Pavement with Modified Porous Asphalt Mixture using AASHTO 1993 Aszharri, Arief; Susetyo, Dimas Ariezky; Sari, Nadra Mutiara
CIVED Vol. 12 No. 1 (2025): March 2025
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v12i1.688

Abstract

The new technology that is being developed is porous asphalt pavement structures, which are made for road segments with less dense traffic. This structure is designed to include facilities such as parking lots, bicycle lanes, pedestrian sidewalks, and tennis court areas. This study involves the analysis of calculation results based on secondary field data and experimental data from laboratory-scale experiments. The design of the road pavement is based on the AASHTO 1993 method. The field data used includes information on the LHR (Load History Record) of the Dawuan Highway (Cikampek) section, the CBR (California Bearing Ratio) value of the subgrade, and the existing pavement conditions (including existing pavement structures and deflection data). Meanwhile, experimental data comes from testing the resilient modulus of porous asphalt mixtures using Cariphalte asphalt and additional gilsonite material with optimal levels. The resilient modulus value was obtained from laboratory testing using the Universal Material Testing Apparatus (UMATTA). The results of this study produced a pavement design using a gilsonite mixture that produced a thinner thickness than standard AC-WC materials. For example, for segment 3 with a modified mixture, the pavement thickness is 13 cm, while the standard AC-WC produces a thickness of 20 cm. It can be seen that using a modified Gilsonite mixture requires an overlay layer 7 cm thinner than using a standard AC-WC mixture.
Evaluasi Kapasitas Parkir SD Muhamadiyah 6 Kota Palembang Sari, Nadra Mutiara; Susetyo, Dimas Ariezky; Aszharri, Arief; Azni, Rakmani; Srikandi, Ghina Rahma
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.999

Abstract

Muhammadiyah 6 Elementary School, Palembang City, is one of the schools located on Jalan Jendran Sudirman, which is right in front of the main road. As a result, many parents dropping their children off at school stop on the roadside. Parking on the roadside around Muhammadiyah 6 Elementary School, Palembang, has caused significant traffic congestion, especially during the morning rush hour (6:00–7:00 AM) and afternoon rush hour (2:30–3:00 PM). This is because the existing parking facilities at the school do not meet the parking needs of vehicles. Therefore, an evaluation is needed regarding the parking capacity needs at the elementary school. The method used is a descriptive method with an inductive approach, through a field survey at 6:30–3:00 PM. The survey results show that the average daily number of vehicles entering and leaving the location is 1,472 motorcycles and 567 cars. The need for parking space reaches 149,3184 m² for motorcycles and 322,368 m² for cars, but the available land is only 105.75 m² for motorcycles and 280 m² for cars. Therefore, it can be concluded that there is a need for additional parking space or a pick-up and drop-off system by parents/guardians of students to prevent vehicles from stopping on the road and allow for smooth and orderly traffic flow
Viscous Elastic Asphalt Characteristics of Cariphalte Modification with Addition of Gilsonite Viewed from Phase Angle Value Aszharri, Arief; Sari, Nadra Mutiara
CIVED Vol. 11 No. 2 (2024): June 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i2.575

Abstract

Performance Grade (PG) Bitumen is bitumen that is graded based on its performance at different temperatures. In the Superpave grading system, asphalt binders are classified according to their performance in extreme hot and cold temperatures and are referred to as performance grade (PG) asphalt. The main objective of assessing and selecting asphalt binder using the PG system is to ensure that the binder has properties suitable for the environmental conditions in the field. Cariphalte is a premium grade polymer modified bitumen used in road and airport construction and other similar applications. Cariphalte is a Styrene Butadine Styrene (SBS) modified bitumen. The SBS in Cariphalte ensures the formation of a 3-dimensional network in the bitumen thereby reducing the temperature susceptibility and increasing the stiffness modulus at high temperatures. Cariphalte is also resistant to oxidation, reducing deformation and slowing secondary solidification. To get an idea of the improvement in rheological properties due to the addition of gilsonite, tests were carried out on a mixture of cariphalte and gilsonite asphalt with 6 variations of gilsonite content. The tests carried out include basic rheological properties testing and mechanistic rheological properties testing. From this research, the test results showed that at the same temperature, asphalt with the addition of 0% gilsonite had the smallest phase angle (δ) compared to asphalt using the addition of gilsonite. This explains that the addition of gilsonite can increase the phase angle (δ) value of PG-76 asphalt, which makes the asphalt material have thicker characteristics.
Co-Authors Azni, Rakmani Nadra Mutiara Sari Nita Anggraini, Nita Praditya, Norca Srikandi, Ghina Rahma Sulaiman, Suherman Susetyo, Dimas Ariezky