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All Journal Jurnal Transportasi Prosiding Forum Studi Transportasi Antar Perguruan Tinggi International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Smart City Eduvest - Journal of Universal Studies
Sutanto Soehodho
Department of Civil Engineering Faculty of Engineering University of Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Health Professions Industrial & Manufacturing Engineering Neuroscience Social Sciences Transportation Other

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Effectiveness of Pelican Crossing on Traffic Flow (Case Study: M.H. Thamrin Road and Sudirman Road, Central Jakarta City) Simanjuntak, Windy Aprilia; Soehodho, Sutanto; Sumabrata, Jachrizal
Eduvest - Journal of Universal Studies Vol. 3 No. 12 (2023): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v3i12.990

Abstract

Pelican Crossing is a crossing with a signaling device that is operated by pedestrians and will stop the flow of vehicle traffic. Pedestrians must press a button to request green time from vehicle drivers so that vehicle drivers stop and pedestrians can cross the road. As a metropolitan city, Central Jakarta is full of activity. The increase in the number of vehicles is not the main factor causing congestion. There are other factors such as the movement of pedestrians crossing the road using Pelican Crossing, causing queues and delays. This study aims to analyze the effect of pedestrians crossing at pelican crossing on the queue length of vehicles, to analyze the characteristics of traffic flow and pedestrians due to pelican crossing and to apply a model that connects the characteristics of traffic flow and pedestrians at pelican crossing. The research was conducted by surveying the existing traffic conditions. The results of the research show that after calculating the PV2 value, we can see the discrepancy in the existing pelican crossing facilities on Jalan MH Thamrin and Jalan Sudirman based on the calculation of pedestrian crossings and traffic volume, which in calculating the PV2 value recommends a non-level crossing type.
LEVERAGING A CENTRALIZED FLEET ASSIGNMENT MANAGEMENT FOR AN AVIATION RESILIENCE Acton, Inof Seno, Mr.; Soehodho, Sutanto; Yusuf, Nahry
Smart City
Publisher : UI Scholars Hub

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Abstract

Since deregulation in the aviation industry, competition among airlines has intensified. This competition is shown by the increasing number of routes, service times, aircraft, and airports served. This competition causes not all flight services to meet their targets, resulting in aircraft operating less efficiently. Passenger seats are not filled, and flight delays are becoming more frequent. Obviously, this will negatively impact consumers and the airline's finances. The study focused on assigning the fleet used to serve flights to maintain existing aviation services and improve aircraft operational efficiency. This study aims to maximize profits by optimizing fleet assignments through the Centralized Fleet Assignment Management (CFAM) strategy. In general, airlines regulate the assignment of their respective fleets. However, in this CFAM, the fleet assignment strategy is carried out centrally by a single management, as if it were a joint company. Integer Programming was used in this study to optimize the aviation fleet assignment model. The purpose of this model is to determine the most appropriate fleet for flights to maximize profits. The results of the study show that the CFAM strategy generates higher profits than in previous conditions, and the aircraft assignment composition is also obtained. With this strategy, evidently, airlines as a system will benefit financially, helping them avoid potential bankruptcy that could have serious consequences for flights. The strategy also offers a different perspective and new nuances to flight service management. In addition, the most important result of this study is that it can serve as a basis for government policy, in this case as a regulator of air transportation services, to ensure the continued operation of aviation services.
Optimization of Sea Transportation Services in The Kepulauan Seribu Using The Vehicle Routing Problem (VRP) Model Darmadi, Darmadi; Soehodho, Sutanto; Nahry, Nahry
Smart City
Publisher : UI Scholars Hub

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Abstract

The Kepulauan Seribu regency relies heavily on sea transportation for passenger mobility and goods distribution. However, current systems face efficiency challenges, high operational costs, and potential imbalances between demand and service capacity. This study proposes a framework to optimize sea transportation services in the Kepulauan Seribu using the Vehicle Routing Problem (VRP) method, especially the Capacitated Vehicle Routing Problem – Many Single Depot (CVRP–MSD) model with heterogeneous fleets and mixed cargo (passenger and goods). The main objective is to minimize total operating costs, which include fixed costs of using the vessel and variable travel costs, and unmet demand, both passenger and goods. The model was formulated to determine the ideal number of ships to operate, design the most efficient shipping routes that connect depots in Jakarta with destination islands, address capacity limitations for passenger and goods transport, and minimize unmet demand. Analysis based on analogue studies shows that the application of the VRP model has the potential to significantly reduce transportation costs, increase fleet utilization, and provide quantitative data on service capacity shortages, thus allowing for better planning to meet the entire demand.
A CONCEPTUAL MODEL OF THE EXTERNAL COSTS OF TRUCK OVERLOADING ON ROAD DAMAGE, EMISSIONS, AND TRAFFIC CONGESTION: A SYSTEMATIC LITERATURE REVIEW sitepu, aleksius; Soehodho, Sutanto; Kusuma, Andyka
Smart City
Publisher : UI Scholars Hub

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Abstract

Freight transport services cannot be separated from the infrastructure and facilities involved, each of which faces its own challenges in delivering optimal performance in the logistics sector. A common challenge in Indonesia’s road sector is the presence of overloaded freight vehicles, which has become a national issue. This phenomenon has a negative impact not only on road infrastructure but also on the environment and traffic. This study aims to develop a conceptual model of the external costs caused by truck overloading practices in terms of road infrastructure damage, increased exhaust emissions, and traffic congestion through a systematic literature review. This phenomenon is a global issue that has significant economic, environmental, and social impacts. The research method employed the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) approach by analyzing 87 scientific articles from the Scopus, Web of Science, and Google Scholar databases covering the period 2015–2024. The results of the study can be categorized into three main components: (1) to systematically review the isolated external costs associated with pavement damage, emissions, and congestion, (2) to quantify the interconnected relationships and multiplier effects between these variables, and (3) to propose an integrated conceptual causal-chain model that delineates the compounded external costs of ODOL operations. The conceptual model developed integrates these three cost components while taking into account factors such as axle load, road pavement conditions, traffic characteristics, and applicable regulations. The findings of this study provide a comprehensive framework for policymakers to calculate the total costs of overloading externalities and to design appropriate economic instruments for internalizing these external costs.
Co-Authors - Darmadi Acton, Inof Seno, Mr. Angella, Dwi Desy Evriyani, Desy Dewi, Ari Tri Kusuma Imayanti, Indah Jachrizal Sumabrata Kusuma, Andyka Martha Leni Siregar Nahry Nahry Putri, Atissa Dwi Ruci, Khobat Dewa Sari, Nanda Iryani Intan Sidabutar, Jonathan Simanjuntak, Windy Aprilia sitepu, aleksius