Composite Journal

ANALISIS PENGELOLAAN SAMPAH DAN KETERSEDIAAN INFRASTRUKTUR TEMPAT PEMBUANGAN SEMENTARA (TPS) DI KOTA GORONTALO

2025-11-02T23:27:09+07:00

Effective waste management remains a major challenge in urban areas, including Kota Selatan Subdistrict, Gorontalo City, which is experiencing an increase in waste volume due to population growth and economic activities. Infrastructure limitations, particularly in the availability of Temporary Disposal Sites (TPS), have resulted in waste accumulation and pose a risk of increased environmental pollution. This research aims to analyze the volume of waste generation, evaluate the existing conditions of TPS, ad assess the capacity of infrastructure in handling waste in Kota Selatan Subdistrict, Gorontalo City. This research employs a quantitative analysis method combined with field surveys focusing on waste volume and the availability of Temporary Disposal Site (TPS) infrastructure in Kota Selatan Subdistrict. Data collection involved direct observation, recording of waste volume generated, interviews with waste management officials, and sampling following the procedures established in SNI 19-3964-1994. The results indicate that the total volume of waste in Kota Selatan Subdistrict reaches 111,03 m³/day, with contributions from residential sources at 6,01% and non-residential sources at 93,99%. The availability of TPS infrastructure is highly limited, with only two (2) functioning container units out of the ideal requirement of approximately 19 units. The percentage of waste successfully transported reaches 82,95% of the total daily waste generation, leaving about 17,05% uncollected. Meanwhile, the waste transport frequency achievement in the research area stands at 82,64% of the targeted frequency.

EVALUASI ANGKUTAN SEDIMEN MELAYANG PADA SUNGAI BONE DI PROVINSI GORONTALO

2025-11-02T23:28:05+07:00

Sungai Bone mengalami pendangkalan di bagian muaranya. Tingginya angkutan sedimen melayang pada Sungai Bone terlihat dari kondisi fisik air yang keruh di sepanjang tahun baik musim kemarau maupun penghujan yang disebabkan oleh banyak faktor diantaranya erosi. Penelitian ini bertujuan untuk mengevaluasi besar laju angkutan sedimen melayang pada daerah hulu, tengah, dan hilir Sungai Bone. Metode penelitian yang dilakukan yaitu dengan membandingkan pengukuran sesaat dan tiga Metode Empiris berupa Metode Lane and Kalinske, Metode Einstein dan Metode Chang Simon and Richardson. Pengambilan sampel yang dilakukan di lapangan berupa sampel sedimen melayang, sampel sedimen dasar dan pengukuran hidrometri pada sungai. Sampel diuji di Laboratorium untuk mendapatkan parameter yang diperlukan pada formulasi yang dipilih. Hasil perhitungan laju angkutan menggunakan Metode Sesaat berkisar antara 925,40-1.179,81 ton/tahun, menggunakan metode Lane and Kalinske berkisar antara 2.180,51- 3.492,05 ton/tahun, menggunakan Metode Einstein berkisar antara 22,23-33,32 ton/tahun, dan menggunakan Metode Chang Simon and Richardson berkisar antara 45,12-68,35 ton/tahun. Persentase beda perbandingan hasil perhitungan antara Metode Sesaat terhadap Metode Empiris sebesar 152,55% lebih besar untuk Sesaat-Lane and Kalinske, 97,52% lebih kecil untuk Sesaat-Einstein dan 94,99% lebih kecil untuk Sesaat-Chang Simon and Richardson.

EVALUASI KINERJA SIMPANG BERSINYAL DAN PENGATURAN ULANG WAKTU SIKLUS APILL MENGGUNAKAN PTV VISSIM

2025-11-02T23:27:30+07:00

The signalized intersection of Jalan Raja Eyato - Moh. Yamin A.R. Koniyo serves as a connection between commercial areas, tourist attractions, fast-food restaurant zones, and religious sites. As a result, this intersection experiences heavy traffic flow. Additionally, its asymmetric/weaving geometric design extends travel time from one approach to another. This study aims to evaluate the intersection's performance and level of service using the Indonesian Highway Capacity Guidelines (PKJI) 2023 and simulation modeling with PTV Vissim Student Version. The analysis results based on PKJI 2023 show the delay values as follows: Jalan Moh. Yamin at 49 seconds with level of service E, Jalan A.R. Koniyo at 38,1 seconds with level of service D, Jalan Raja Eyato (west) at 49,5 seconds with level of service E, and Jalan Raja Eyato (east) at 33,6 seconds with level of service D. The average intersection delay is 37 seconds, classified as level of service D. Meanwhile, the simulation results using PTV Vissim Student Version indicate delay values of 73,4 seconds with level of service E for Jalan Moh. Yamin, 72 seconds with level of service E for Jalan A.R. Koniyo, 46,3 seconds with level of service D for Jalan Raja Eyato (west), and 27,8 seconds with level of service C for Jalan Raja Eyato (east), with an average intersection delay of 54,5 seconds with level of service D. Four alternative solutions were proposed to improve the intersection's performance. The best solution is Alternative 2. which reduced signal phases four to three. This adjustment reduced delays by approximately 33% compared to current conditions, without requiring additional infrastructure costs.

ANALISIS KINERJA LALU LINTAS PADA RUAS JALAN BACHARUDDIN JUSUF HABIBIE DENGAN MENGGUNAKAN PERANGKAT LUNAK VISSIM

2025-11-02T23:27:47+07:00

The Bacharuddin Jusuf Habibie Road, which underwent improvements compared to the previous year, has not yet experienced traffic congestion. However, with increasing vehicles, congestion will likely occur in the coming years. Objective: To analyze the road characteristics, including geometric features, speed, travel time, traffic volume, and composition; road performance, free-flow speed, density, road capacity, degree of saturation, and level of service; and simulation results using VISSIM software. Methodology: The study utilized both primary and secondary data. Primary data were collected through field observations, while secondary data were sourced from journals, books, and government agencies. Results: The analysis shows the highest traffic volume occurs on Tuesdays between 16:00-17:00, with a total volume of 2,710 vehicles/hour or 1,117.8 passenger car units (PCU)/hour, predominantly consisting of motorcycles (82.32%), followed by sedans (11.77%), passenger vehicles (0.01%), pickup trucks (4.78%), small and large buses (0.19%), two-axle trucks with 4 and 6 wheels (0.92%), and articulated trucks (0.01%). Conclusion: The performance analysis of the Bacharuddin Jusuf Habibie Road in Bone Bolango Regency, utilizing the PKJI (Indonesian Highway Capacity Manual) 2023 method, reveals a free-flow speed of 46.269 km/h, a traffic density of 2.08 vehicles/hour/m, a road capacity of 1,484 PCU/hour, degree of saturation of “0.38” indicates a stable flow with very good condition and is categorized as A. Then, the level of service D is observable from vehicles speed according to the Government Regulations of 2015

TINGKAT KEBISINGAN AKIBAT AKTIVITAS LALU LINTAS YANG BERADA DI KAWASAN PASAR LASOANI KOTA PALU

2025-11-02T23:28:22+07:00

Rapid population growth in urban areas affects various aspects of life, including population mobility and changes in socio-economic activities. One of the negative impacts resulting from these changes is the increase in noise levels, which becomes a significant source of sound pollution in urban environments. This study aims to identify the traffic noise levels generated by activities at Pasar Lasoani, Palu City, and analyze the factors influencing them, such as vehicle volume and vehicle speed. The methods used in this study include noise measurement, traffic volume analysis, vehicle speed measurement, and multiple linear regression analysis. The results show that the noise levels at Pasar Lasoani on Saturday exceeded the environmental quality standards, with noise levels at monitoring points reaching 74 dB. On Monday, when there was no market activity, the noise levels were lower. Vehicle volume and speed were found to have a significant impact on noise levels, with vehicle volume having a positive effect and vehicle speed having a negative effect on noise levels. The multiple linear regression analysis indicated that vehicle volume (X1) and vehicle speed (X2) significantly influence noise levels simultaneously. Noise distribution mapping using Surfer 11 software showed variations in noise levels at different points in the Pasar Lasoani area, with the highest noise levels occurring on Saturday. This study provides a clear understanding of the factors influencing noise levels and noise distribution in crowded market areas, as well as the contribution of economic activities to urban environmental quality.