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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia G-Tech : Jurnal Teknologi Terapan
Izatullilah, Izatullilah
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Evaluation of Vegetation Diversity and Emission Absorption Recommendations for Pandaan-Malang Toll Road (Segment Study 1-5) Nurita Prameswari, Putri; Ahmad Abdul Aziz, Hafif; Izatullilah, Izatullilah; Qolbi Prasetya Kautsarani, Yuhyil; Ayu Kusuma Dewi, Vita
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 10, No 2 (2025): EDISI SEPTEMBER 2025
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v10i2.7105

Abstract

Toll road operational activities also harm the environment, one of which is the release of motor vehicle emissions. One way to reduce this impact is through the application of vegetation along the toll road. This study aims to evaluate vegetation based on integrated ecological functions along the Pandaan-Malang toll road corridor. This research employs quantitative methods, beginning with field observations and secondary data collection on the number of vehicles, followed by quantitative analysis of emission absorption capacity, and culminating in the preparation of recommendation strategies for the Pandaan-Malang toll road segment 1-5. Based on the study's results, it was found that emissions from vehicle volume were 63,320,311.04 kilograms of CO2/ year, with a total absorption capacity of vegetation along the Pandaan-Malang toll road segment of 51,080,719.78 kilograms of CO2/year. There is a shortfall of 12,239,591.26 kilograms of CO2/ year or 19.3% of total annual emissions. This finding indicates that the capacity of existing vegetation remains insufficient to offset the emissions generated by passing motor vehicles. Strategies and recommendations that can address the lack of absorption include the addition of vegetation, such as trembesi, dea shoes, and pule, with the amount and placement tailored to their specific needs. This research demonstrates that vegetation not only enhances the environment's beauty but also plays a crucial role in absorbing carbon dioxide (CO2) emissions and other pollutants. Through this approach, it is expected that the toll road will not only serve as a transportation route but also function as an ecological corridor that supports the improvement of environmental quality and public health. Vegetation recommendations should also consider adaptation factors to the local conditions along the toll road, such as pollutant levels, light intensity, and soil quality. Therefore, future research can involve field trials of vegetation resilience and actual carbon sequestration data.
Effect of Bottom Bracing Configuration on Mid-Span Deflection of Tied Steel Arch Bridge Neema, Faiz Razaan; Khazruya, Dzulkarnain Muhammad; Izatullilah, Izatullilah; Muhammad, Dzul Fikri
G-Tech: Jurnal Teknologi Terapan Vol 10 No 1 (2026): G-Tech, Vol. 10 No. 1 January 2026
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v10i1.8916

Abstract

Tied steel arch bridges are commonly used due to their structural efficiency and aesthetic value; however, excessive mid-span deflection remains a critical design issue. While previous studies indicate that bottom bracing can enhance stiffness, the optimization of bracing configurations at the mid-span has not been sufficiently investigated. This study evaluates the influence of different bottom bracing configurations on mid-span deflection in tie-beam steel arch bridges. Numerical analysis based on the finite element method was conducted using SAP2000 v.22 on four bridge models with identical geometry, loading conditions, and a total bottom bracing weight of 10 kg. The bridge span was 4 m with an allowable deflection limit of 5 mm. The results show that all configurations satisfy the deflection criteria, with the X-bracing configuration yielding the smallest mid-span deflection. These findings contribute to the understanding of optimal bottom bracing configurations in steel arch bridge design, supporting efficient structural performance in engineering applications.
Co-Authors Ahmad Abdul Aziz, Hafif Dzul Fikri Muhammad Khazruya, Dzulkarnain Muhammad Neema, Faiz Razaan Nurita Prameswari, Putri Qolbi Prasetya Kautsarani, Yuhyil Vita Ayu Kusuma Dewi