1,721,100 research outputs found
Approach for siting a support facility for transporting supplies in emergency cases in the Republic of Bulgaria
Full text linkIn this paper, the author determines the most suitable transportation location for intervention in a large scale disaster in the Republic of Bulgaria, by means of the Weber Problem and the Weiszfeld method. The objective is to minimise the cost of transporting emergency supplies across the country by locating a support facility, and thus reaching the area of event at the lowest possible cost. A brief description of the Weiszfeld method is provided in the paper. Further, using recent population data of both provinces and municipalities, the method is applied respectively to obtain the results. They were compared in terms of spatial correspondence and the final facility location was fixed. Erecting the supply site is recommended to help decrease the losses
Weiszfeld, tree-seed, and whale optimization algorithms comparison via locating transportation facilities with weightings considering the vulnerability and uncertainty
No full textSearching for an optimum transportation facility location with emergency equipment and staff is essential for a specific region or a country. In this direction, this study addresses the following problems. First, the performances of the Weiszfeld, tree–seed, and whale optimization algorithms are compared, which is the first of its kind in the literature. Second, a new approach that tests the importance parameters’ effectiveness in searching for an optimum transportation facility location with emergency equipment and staff is proposed. The Weiszfeld algorithm finds viable solutions with compact data, but it may not handle big data. In contrast, the flexibility of the tree–seed and whale optimization algorithm is literally an advantage when the number of parameters and variables increases. Therefore, there is a notable need to directly compare those algorithms’ performances. If we do, the significance of extending the number of parameters with multiple weightings is appraised. According to the results, the Weiszfeld algorithm can be an almost flexible technique in continuous networks; however, it has reasonable drawbacks with discrete networks, while the tree–seed and whale optimization algorithms fit such conditions. On the other hand, these three methods do not show a fluctuating performance compared to one another based on the locating transportation facilities, and thus they deliver similar performance. Besides, although the value of accuracy is high with the application of the conventional technique Weiszfeld algorithm, it does not provide a significant performance accuracy advantage over the meta-heuristic methods
Assigning convenient paths by an approach of dynamic programming
No full textMediterranean International Conference of Pure and Applied Mathematics and Related Areas 2018 (1. : 2018 : Antalya, Turkey)For many decades, mathematical models and methodologies have been essential in order to provide the understanding of countless engineering processes and technologies. Using mathematical models in many academic research, it was demonstrated that numerous infrastructural problems can be solved, such as locating several facilities related to a specific industry. In this study, a facility location was determined by considering some parameters. A mathematical problem named Weber problem supported the decision of the process of allocating the factory. Additionally, limitations and weights were taken into account in order to solve the mathematical problem. Moreover, in accordance with the findings, a discussion between this study and the previous studies has been made. As a result, by optimizing the case, the losses such as time wasting and distance traveled unnecessarily are minimized.No sponso
Evaluation of rail transportation stops efficiency in Antalya by applying intuitionistic Fuzzy TOPSIS analysis
No full textEnsuring 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.No sponso
Development of physical parameters within transportation systems and their implications on traffic assignment
No full textInternational Congress on Multidisciplinary Natural Sciences and Engineering (3. : 2023 : Ankara, Turkey)No sponso
Transportation analysis of interconnectedness and incident accessibility of highway transportation tunnels in mountainous regions: A case study in Antalya
No full textInternational Conference on Innovative Academic Studies (3. : 2023 : Konya, Turkey)Highway transportation tunnels play an essential role, particularly in geographically challenging terrains like mountainous regions, enhancing road accessibility for commuters. While these highway transportation tunnels offer significant time savings and ease of access, their construction demands meticulous planning and substantial investment. However, literature has largely overlooked the analysis of road transportation tunnel characteristics in relation to one another. To address this gap, a comprehensive analysis has been conducted based on the attributes of highway tunnels in the Antalya region. Data related to the aspects of the tunnels were collected for a very long time and accurately. Later, domain experts assessed these attributes to examine the data. Further, state-of-the-art metaheuristic techniques which are for solving complex transportation network issues when the traditional methods are too slow were employed in this study. Results indicate that the connectivity between highway transportation tunnels is remarkably low, and also transportation network connections between them need to be developed. Moreover, recommendations were provided for strategically locating emergency transportation assistance facilities along the road transportation network. This study significantly mitigates uncertainties in analysis methodologies and focuses on feasibility concerns in transportation applications.No sponso
Network distance coefficient effect on determining transportation facility location
No full textNo sponso
Metaheuristic algorithms and multi-criteria decision-making for urban public transportation systems in developing tourism environment
No full textA 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.No sponso
Establishment siting for equipment transportation against forest fires
No full textInternational Black Sea Applied Sciences Congress (8. : 2022 : Ordu, Turkey)No sponso
A TOPSIS-based evaluation of urban transportation and supermarket accessibility: A case study of Konyaaltı in Antalya
No full textNo sponso
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