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All Journal Jurnal Transportasi Jurnal Konstruksi Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Jurnal PkM MIFTEK Jurnal Konstruksi Jurnal Jalan Jembatan
Greece Maria Lawalata
Institut Teknologi Garut
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media Social Sciences Transportation Other

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Evaluasi Ruang Parkir Off Street di Area Kampus Greece Maria Lawalata; Athaya Zhafirah; Diki Kurniawan
Jurnal Konstruksi Vol 22 No 2 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-2.1546

Abstract

The Garut Institute of Technology (ITG) is one of the universities in Garut Regency which continues to experience growth from year to year in terms of the number of students. Of course, this must be balanced with the provision of adequate facilities, such as parking space. The availability of parking facilities must be able to accommodate the vehicles of students, lecturers, staff and campus visitors. This research aims to evaluate parking spaces at ITG based on the 1998 Technical Guidelines for the Implementation of Parking Facilities for the Director General of Land Transportation. The method used is direct data collection in the field in the form of data on entry and exit of parked vehicles taken in the Odd Semester of the 2022/2023 Academic Year taken in the area campus entrance which is held 2 days per week on Monday and Tuesday which are busy days for lecture activities, namely from 22 May – 6 June 2023 for 9 hours from 07.30 s.d. 16.30. The research results show that the highest parking index value occurred on Tuesday 30 May 2023, namely for cars it reached 125% and for motorbikes it reached 120%, meaning that at that time the need for parking space at ITG exceeded the available capacity. Based on the results of data processing, the current parking demand in off-street parking areas is for cars, namely 20 lots and for motorbikes, 507 parking lots, meaning that there needs to be an additional parking lot for cars of 4 SRP and for motorbikes of 85 SRP. The predicted parking requirement for the next 5 years for cars is 34 SRP and for motorbikes is 851 SRP while the currently available SRP is 16 SRP for cars and 422 for motorbikes so that to meet parking needs in the next 5 years there needs to be an additional 18 SRP for cars and 428 SRP for motorbikes.
Prioritas Pemeliharaan Jalan Kabupaten Berdasarkan Ketersediaan Alokasi Anggaran Dadan Yuda Prayoga; Herman Herman; Ida Farida; Mirza Fathir; Greece Maria Lawalata
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1550

Abstract

Road infrastructure is one of the most strategic transportation infrastructure facilities. This is supported by road stability which is supported by road maintenance and repairs. Handling road repairs cannot be separated from funding from the budget of each region, especially in the district. Budget limitations affect road repairs, so there needs to be priority handling. The aim of the research is to determine the criteria that are the basis for prioritizing road maintenance and to develop a priority order for district road maintenance based on the availability of budget allocations in Banyuresmi District, Garut Regency. The research methodology uses a descriptive evaluative method, analyzed using the Analytical Hierarchy Process. The results of respondents' assessments of road maintenance handling show that the priority criteria consisting of the type of road damage factor have an influence of 31.9%; policy factors influence 31.7%; traffic condition factors influence 23%; and the service condition factor has an influence of 13%. The priority order for handling Regency road maintenance is based on the availability of budget allocations in Banyuresmi District, Garut Regency, for the Pasirmuncang - Cipicung, Tanjung - Maleer, Cipicung - Wanaraja, Cibudug - Cipicung, Bojongsalam - Menger, Jager - Jolok/Cipicung, and Warungpeuteuy - Kiaralawang roads.
Prediksi Kinerja Bundaran Tiga Lengan Panji Septiana; Athaya Zhafirah; Greece Maria Lawalata
Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-1.1663

Abstract

This three-arm roundabout in a densely populated and traffic-rich area serves as a connecting provincial road that often experiences congestion. This study aims to evaluate the performance of the roundabout under existing conditions and projections for the next 10 years. The method used is quantitative through a three-week field survey on Sundays and Mondays at 07.00–17.00 WIB. The analysis refers to the 2023 Indonesian Road Capacity Guidelines (PKJI) to determine capacity, degree of saturation, delays, and queue opportunities. The results show that the current level of service is in category B with an average delay of 8 seconds/smp and a queue opportunity of 39–78%. In the 10-year projection, there has been a decrease in the level of service to category C with an average delay of 10 seconds/smp and a queue opportunity increasing to 97%. These results indicate that the roundabout will experience a decline in performance in the future, so it is necessary to consider geometric modifications or better traffic management to maintain smooth vehicle flow.
Evaluasi Derajat Kejenuhan Jalan Menggunakan PKJI dan VISSIM Yasir Al Akib; Athaya Zhafirah; Greece Maria Lawalata
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2259

Abstract

A market serves as a meeting point between sellers and buyers for the exchange of goods or services, directly influencing economic activities and community mobility. The existence of a market naturally generates attraction and movement between locations, and such movements are closely tied to the use of vehicles. Human activities involving vehicle movement inevitably affect road networks and traffic flow, potentially leading to congestion. This study discusses traffic management planning along Wanaraja Street to address congestion problems caused by market activities. The research methodology includes both primary and secondary data collection. Primary data were obtained through direct surveys on traffic volume, road geometry, roadside friction, travel time, and vehicle speed. The collected data were analyzed using the Indonesian Highway Capacity Manual (PKJI 2023). Secondary data consisted of literature studies related to traffic management implementations in other locations. The VISSIM software was used to model existing traffic conditions and simulate several scenarios, including: Relocation or removal of street vendors, Modification of property access points, Road widening, and A combined scenario integrating all interventions. The simulation results are expected to provide a realistic picture of effective solutions for reducing congestion in the market area. The existing condition analysis shows a road capacity of 3,220 PCU/hour with a peak traffic volume of 2,458.4 PCU/hour, resulting in a degree of saturation (DS) of 0.76, which corresponds to Level of Service (LOS) D — indicating nearly unstable traffic flow. This study contributes to the development of urban traffic management strategies, particularly in the context of traditional market areas, by presenting simulation-based scenarios that can serve as a foundation for future transportation planning and policy-making in similar environments.
Penurunan Derajat Kejenuhan Simpang Tak Bersinyal 15 Tahun Menggunakan PKJI 2023 dan PTV VISSIM Daffa Nugraha; Athaya Zhafirah; Greece Maria Lawalata
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.2258

Abstract

Intersections involve continuous and crossing traffic movements, creating potential conflicts that require traffic control. This study aims to evaluate the performance of the Letjen Ibrahim Adjie–Rancabango unsignalized intersection in Tarogong Kaler District, Garut Regency, over the next 15 years and to address traffic problems at the location. The method includes the collection of primary data through vehicle volume surveys, road geometric data, as well as vehicle travel time and speed. The data were analyzed using the Indonesian Highway Capacity Guidelines (PKJI 2023). Secondary data consist of literature reviews related to the implementation of traffic management at intersections in other locations. Traffic performance modeling and evaluation were conducted using PTV Vissim Student Version simulation software. The analysis results show an intersection capacity of 2,880 pcu/hour during peak hours, with a Degree of Saturation (DS) of 0.97, classified as Level of Service E (stable flow with high interference), and an average delay of 13.89 seconds/pcu. PTV Vissim simulation recorded a vehicle volume of 279 vehicles and an average delay of 14.39 seconds/vehicle. One of the implemented solutions was a right-turn prohibition to reduce the degree of saturation and traffic delay. After implementation, the Degree of Saturation decreased to 0.74 (Level of Service C, more stable flow) with a delay of 8.41 seconds/pcu. The simulated vehicle volume was 230.5 vehicles with an average delay of 8.27 seconds/vehicle, indicating improved intersection performance. This study contributes technical recommendations that can serve as a basis for urban transportation planning and support traffic management policies in developing areas such as Garut Regency.
Perubahan Lendutan Perkerasan Kaku Akibat Modifikasi Tanah Dasar Menggunakan Abu Daun Bambu dan Semen Athaya Zhafirah; Izwan Gunawan; Greece Maria Lawalata
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3069

Abstract

The addition of a mixture consisting of native soil with 5 percent bamboo leaf ash and 5 percent cement has been shown to improve the California Bearing Ratio (CBR) and the strength of subgrade soil; however, its effect on rigid concrete slab deflection has not yet been explored. This study aims to analyze the influence of soil mixtures containing bamboo leaf ash and cement on rigid pavement deflection values using the finite element method through ETABS 21 software, with variations in CBR values, slab thickness, and central loading positions. The CBR data were obtained from previous studies, where the CBR value of untreated soil was 8,94 percent, while the CBR values of soil mixed with bamboo leaf ash and cement were 14,89 percent, 18.41 percent, 31.84 percent, and 41.43 percent. These CBR values were then converted into the modulus of subgrade reaction (k) using an empirical CBR–k equation. Subsequently, the rigid pavement was modeled in ETABS 21 and subjected to concentrated loads according to Class I road specifications (MST) at the center loading position in the longitudinal direction, transverse direction, and maximum deflection condition, with rigid pavement slab thickness variations of 265 mm, 275 mm, 285 mm, 295 mm, and 305 mm. The analysis results indicate that increasing the CBR value through the addition of bamboo leaf ash and cement, along with increasing the concrete slab thickness, consistently reduced rigid pavement deflection. At a CBR value of 8,94 percent with a slab thickness of 265 mm, the longitudinal deflection was recorded at -0,172 mm, whereas at a CBR value of 41,43 percent with a slab thickness of 305 mm, the deflection decreased to -0,089 mm. Similar reduction patterns were also observed in transverse deflection and maximum deflection values. The contribution of this study lies in demonstrating the effectiveness of bamboo leaf ash and cement as subgrade stabilization materials in enhancing subgrade stiffness and reducing rigid pavement deformation. The implication is that the use of these local materials has the potential to become a more efficient and sustainable alternative for subgrade improvement in rigid pavement design.
Edukasi Pengelolaan Sampah Anorganik Terhadap Pengetahuan Dan Sikap Masyarakat Desa Sirnajaya Pamella M Sri Rezeki; Athaya Zhafirah; Rachminawati; Eko Walujodjati; Anjas Ninda Hantari; Ida Farida; Rina Kurniawati; Sulwan Permana; Dendi Yogaswara; Nanang; Adi Susetyaningsih; Ismi Purnamasari; Reski Ramadhani; Yeni Pariyatin; Alan Wijaya; Ratu Mafas Sukmalaras; Subhan Mulyana; Agus Ismail; Cepi Wendiki Alamsyah; Ganjar Jojon Johari; Greece Maria Lawalata; Madi Hermadi; Rudy Febrijanto; Fitri Nuraeni; R Dini Destiani Siti Fatimah; Risma Liyana Ulfa; Sri Rahayu
Jurnal PkM MIFTEK Vol 7 No 1 (2026): Jurnal PkM Miftek
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/miftek/v.7-1.3416

Abstract

Inorganic waste management remains a significant environmental challenge in rural areas. This Community Service Program (PkM) aimed to evaluate the effectiveness of an educational intervention on inorganic waste management in improving the knowledge and attitudes of residents in Sirnajaya Village, Garut. The program was conducted on February 4, 2026, in collaboration with the Garut Zero Waste community using a pre-test and post-test design involving 18 participants, consisting of housewives, university lecturers, and community members. The assessment instrument covered five indicators: understanding the definition of inorganic waste, identifying examples of inorganic waste, recognizing the environmental impacts of improper waste disposal, attitudes toward waste segregation, and intentions to reduce the use of single-use plastics. The results showed that 83.3% of the participants already possessed a high level of baseline knowledge. Consequently, the improvement in post-education scores was relatively limited, with an average normalized gain (N-Gain) of 0.11. This finding reflects a common ceiling effect, rather than indicating the ineffectiveness of the educational program. Nevertheless, three out of eighteen participants with lower initial knowledge demonstrated substantial improvements, achieving moderate to high levels of learning gain. Overall, the program contributed primarily to strengthening participants' knowledge and behavioral intentions regarding inorganic waste management. However, measurable changes in actual household waste management practices require further medium-term observation and follow-up evaluation.
Co-Authors -, Parbowo Adi Susetyaningsih Agus Bari Sailendra Agus Bari Sailendra, Agus Bari Agus Ismail Alan Wijaya Anjang Nugroho Anjang Nugroho, Anjang Anjas Ninda Hantari Cepi Wendiki Alamsyah Dadan Yuda Prayoga Daffa Nugraha Dendi Yogaswara Diki Kurniawan Eko Walujodjati Faisal Rahman Faisal Rahman Faisal Rahman, Faisal Fathir, Mirza Fitri Nuraeni Ganjar Jojon Johari Gardenia, Vera Gede Budi Suprayoga Gede Budi Suprayoga, Gede Budi Harlan Pangihutan Harlan Pangihutan, Harlan Heddy R. Agah Heddy R. Agah Heddy R. Agah Hendro Satrio Hendro Satrio, Hendro Herman Herman Ida Farida Ida Farida Ida Rumkita Sebayang Ismi Purnamasari Izwan Gunawan Madi Hermadi Mirza Fathir Nanang Pamella M Sri Rezeki Panji Septiana Parbowo - Prayoga, Dadan Yuda R Dini Destiani Siti Fatimah Rachminawati Ratu Mafas Sukmalaras Reski Ramadhani Rina Kurniawati Risma Liyana Ulfa Rudy Febrijanto Sebayang, Ida Rumkita Sri Amelia Sri Amelia, Sri Sri Rahayu Subhan Mulyana Sulwan Permana Tengku Riza Zarzani N Vera Gardenia Vera Gardenia Wimpy Santosa Yasir Al Akib Yeni Pariyatin