http://hdl.handle.net/20.500.12566/21 2026-04-06T09:08:48Z http://hdl.handle.net/20.500.12566/2367 Metaheuristic algorithms and multi-criteria decision-making for urban public transportation systems in developing tourism environment Demir, Emre A number of structures, including public transportation (PT) structures and facilities, have been built in the large cities in order to protect and develop tourism. The importance of them is recognized day-to-day and the value they add to the economy of the city increases. In particular, efforts to protect historical PT system structures stand out. While there are many studies in many urban areas in order to preserve the historical structure in transportation, the assessment procedures are crucial in these cases. Although many alternatives are compared by applying multi-criteria decision-making (MCDM) methods in the field of transportation, other techniques such as metaheuristic techniques in transportation optimization can also be utilized. Not only these advanced methodologies can be used together, also decision-makers in urban transportation can put these methods into practice. Therefore, in this study, a set of transportation measures are evaluated by three up-to-date metaheuristic algorithms and an MCDM technique. They are applied for maintaining a PT line which has been used for years to develop tourism. The line remains robust in today's conditions, however it should be carried into the future. In other words, this study is a comparison of alternatives with metaheuristic algorithmic applications and MCDM methods. 2024-01-01T00:00:00Z http://hdl.handle.net/20.500.12566/2366 A multi-criteria decision approach to measure rail transit station efficiency in urban areas Demir, Emre; Özgün, Kamer Planning and constructing public transportation (PT) lines, especially in urban areas, require careful consideration due to the many factors involved in transportation engineering. Evaluating the performance of stations, particularly for railway lines, necessitates taking both costs and benefits into account. This study examines the performance of new rail transit (RT) stations in an urban area by considering structural costs and key benefits such as travel demand and service frequency. Specifically, our analysis focuses on construction costs as the primary expense, while the number of peak-hour trips, average speed, and transit service frequency are treated as the main benefits. We employ the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), a multi-criteria decision-making (MCDM) methodology, to assess the effectiveness of RT stations in a large urban rail system. Notably, this technique has not previously been applied to the particular RT stations which are under our consideration. Our case study evaluates 20 stations on a tram line in a major city in Türkiye, offering 20 alternatives for analysis. The results highlight variations in station efficiency and provide recommendations for improvement. By addressing critical factors and applying MCDM approaches, this research seeks to enhance PT services in large cities, contributing to the development of a more effective and inclusive urban RT system. 2024-01-01T00:00:00Z http://hdl.handle.net/20.500.12566/2365 Exploring barriers to accurate traffic data collection through roadside intelligent transportation system devices in Türkiye Farooq, Nashrah; Demir, Emre This study investigates the challenges faced in collecting traffic data using roadside Intelligent Transportation Systems (ITS) devices İn Türkiye. The research audİts the complexities hindering smooth and accurate traffic information acquisition by examining the intersection of privacy concerns, camera malfunctions, movement of cameras, adverse weather conditions, and camera resolution. For example, according to the data gathered from several Turkish cities, privacy concerns present a significant obstruction to obtaining comprehensive traffic data, as collaboration with transportation authorities is hampered by strict privacy policies requiring official documentation. Moreover, technical challenges, such as camera malfunctions, including lagging and black screens, emphasize the importance of reliable equipment for effective data collection. Additionally, the movement of cameras poses challenges to data accuracy. Although some cameras exhibit the capacity to return to their original positions, ensuring consistent data collection remains an ongoing challenge. Furthermore, adverse weather conditions, such as rain, obstruct real-time data collection by accumulating water droplets on camera lenses. Another critical barrier identified in this research is the resolution of cameras. While adequate for counting vehicles, these devices struggle to capture detailed information such as vehicle type, size, number plate, and model. This limitation restricts the comprehensive analysis required for advanced traffic management. Addressing the multidimensional barriers is vital for developing effective ITS in Türkiye. Future improvements should consider advancements in camera technology to enhance data reliability and ease of data interpretation, fostering a better understanding of traffic dynamics for up-to-date decision-making. 2024-01-01T00:00:00Z http://hdl.handle.net/20.500.12566/2349 Evaluation of rail transportation stops efficiency in Antalya by applying intuitionistic Fuzzy TOPSIS analysis Demir, Emre Ensuring comfort, safety, security, and accessibility in public transportation (PT) systems is essential for promoting equitable access and inclusivity, especially within urban rail networks. This study evaluates the efficiency of tram stops in Antalya’s urban rail system by employing an application of multi-criteria decision-making (MCDM) method, Intuitionistic Fuzzy Technique for Order Preference by Similarity to Ideal Solution (Intuitionistic Fuzzy TOPSIS) analysis. The research focuses on the first tram line in Antalya, examining its stops in central areas. Evaluations encompass various aspects including comfort, safety, security, and accessibility. Particularly, comfort levels are assessed based on the availability of amenities surrounding tram stops. Safety is evaluated by analyzing the density and proximity of bus stops, while security measures consider street lighting adequacy. Additionally, accessibility for disabled individuals is examined, particularly regarding the presence of stairs. This investigation centers on the Antalya tram line as a case study, comprising 16 stops, thereby presenting 16 alternatives for analysis. Three experts participate in the evaluation process, deploying four established criteria. Results indicate variations in efficiency among stops, with recommendations provided for improvement. By addressing critical factors and utilizing MCDM methods, this research contributes to enhancing PT services in Antalya, fostering a more efficient and inclusive urban transit system. 2024-01-01T00:00:00Z