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"Cities are facing ever greater challenges regarding climate change. Urban governments and policymakers have taken such challenges into account when maintaining urban development momentum. Although the city government of Jakarta has implemented several initiatives to reduce emissions, assessments of the impact of these strategies on the sustainability of the urban system remain limited. This paper investigates the evaluation of two mitigation scenarios for reducing Jakarta’s greenhouse gases that differ in the authority level of the local government, using a policy analysis approach. The method emphasizes the use of the system dynamics model to gain insights into each option. The results reveal that the city’s development goals would be best achieved through joint partnership with the national government. Such cooperation would have a more significant effect on economic, social, and environmental sustainability than would be in the case in other scenarios."

"Dalam proses mendesain struktur geoteknik, perlu diperhatikan mengenai ketidakpastian parameter kuat geser pada tanah. Ketidakpastian tersebut dapat mempengaruhi stabilitas struktur dan menyebabkan keluarnya biaya berlebih akibat kegagalan yang terjadi. Pada penelitian ini, akan disajikan proses pemilihan struktur galian pada lingkungan perkotaan dengan memperhatikan ketidakpastian parameter tanah yang dihitung menggunakan metode probabilistik. Struktur galian yang akan dipertimbangkan adalah galian lereng terbuka dan galian dengan dinding penahan tipe sheet pile dan secant pile. Proses pemilihan struktur galian menggunakan analisis Expected Monetary Value dengan mempertimbangkan biaya pembebasan lahan, biaya konstruksi, biaya perbaikan akibat terjadi kegagalan, dan kehilangan pendapatan akibat terjadi kegagalan. Hasilnya menunjukkan bahwa dalam proses pengambilan keputusan sangat dipengaruhi oleh faktor biaya pembebasan lahan, diikuti dengan faktor biaya kehilangan pendapatan, biaya konstruksi dan biaya rekonstruksi.

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In the process of designing geotechnical structures, it is important to consider the uncertainty of soil shear strength parameters. This uncertainty can influence the soil structure stability and resulting in unexpected expenses due to structural failure. This research will provide a decision making process to choose which type of slope excavation structure in urban areas by considering the uncertainty of soil parameters using probabilistic method. Slope excavation structures which will be considered are open-cut slopes, excavation with sheet pile and secant pile retaining wall. The decision making process will be calculated by using Expected Monetary Value analysis which considers land acquisition cost, construction cost, reconstruction cost caused by failure and revenue lost caused by failure. The result shows that the biggest cost which affected the decision is the land acquisition cost, followed by revenue lost cost, construction cost, and reconstruction cost."

"Dalam membangun sebuah infrastruktur jalan berupa timbunan terdapat berbagai pilihan desain konstruksi. Untuk menentukan desain konstruksi yang sesuai dilakukan analisis stabilitas struktur dan analisis biaya. Pada penelitian ini, analisis struktur dilakukan dengan melakukan analisis probabilistik yang dipengaruhi oleh ketidakpastian parameter tanah pada konstruksi jalan berupa konstruksi lereng timbunan terbuka dengan sudut kemiringan 34˚ dan 63, konstruksi retaining wall, dan konstruksi pile-slab dengan variasi ketinggian timbunan 3, 6 dan 9 meter. Analisis biaya dilakukan berdasarkan 4 komponen biaya yaitu, biaya akuisisi lahan, biaya konstruksi, biaya rekonstruksi dan biaya kehilangan pendapatan. Biaya akuisisi lahan menjadi faktor penting oleh karena di lingkungan perkotaan biaya akuisisi lahan menjadi sangat mahal. Penentuan keputusan dilakukan dengan analisis probabilistik menggunakan metode Expected Monetary Value (EMV) yang dibagi atas probabilitas konstruksi aman (FS>1) dan probabilitas konstruksi tidak aman (FS<1). Hasil analisis menunjukan EMV terendah setiap ketinggian timbunan dapat berubah sesuai dengan harga biaya akuisisi lahan.

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There are various construction design choices in building a road infrastructure. To determine the appropriate construction design, structural stability analysis and cost analysis are considered. In this study, structural analysis is calculated by conducting probabilistic analysis which is influenced by uncertainty

of soil parameters. Construction design choices will be divided into construction design which are open-fill slope of 34˚ and 63, retaining wall structure, and pileslabs structure with variations in heap height of 3, 6 and 9 meters. There are 4 components that is considered in costs analysis, land acquisition costs, construction costs, reconstruction costs and revenue loss costs. Land acquisition costs are an important factor because in urban environments the cost of land acquisition is very expensive. The decision making is done by probabilistic analysis using the Expected Monetary Value (EMV) method which is divided into the probability of safe construction (FS> 1) and the probability of insecure construction (FS <1). The analysis results show the lowest EMV for each heap height can change according to the price of land acquisition costs.

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