Transportation of both people and goods is indispensable for human existence. The substantial rise in travel time can be attributed to the increasing global population and the imperative to enhance human well-being. The rapid escalation of technological progress has contributed directly to the concurrent rise in automobile ownership. Due to the rapid increase in the number of automobiles, it is of the uttermost importance to regulate the flow of vehicles. The implementation of vehicle management systems contributes to the optimization of both voyage durations and costs. In order to implement a vehicle management system that is both efficient and effective, it is necessary to have access to accurate and comprehensive background information. For the development of an efficient vehicular management system, the collection of data regarding traffic flow is essential. The objective of this study is to provide a comprehensive overview of the most recent deep learning techniques namely SVM, Naïve Bayes, KNN, Linear Regression and Markov based employed in the field of traffic density estimations in intelligent transportation systems. Only a few of the articles published on this topic have made substantial contributions to theorizing frameworks, whereas the overwhelming majority of contributions in this field are primarily concerned with practical applications. Deep learning algorithms have proven their ability to capture the nonlinear aspects of traffic flow prediction, and these systems have exhibited encouraging outcomes. Even though there are numerous benefits associated with the use of deep learning models for the prediction of individual traffic flow, it is essential to acknowledge the existence of a number of obvious disadvantages. Academics have abandoned the use of deep learning architectures in recent years in favor of hybrid and unsupervised methods. The present study investigates the numerous deep learning architectures currently employed in the field of traffic flow prediction, as well as the increasing prevalence of hybrid methods of analysis. The weather contributes to the unpredictability of road traffic. Potential factors occur in methodologies for estimating traffic road density; for instance, air humidity and the degree to which light, heavy, or moderate precipitation affects the average speed of vehicles are significant determinants. An additional critical factor is that if the data collection is reliant on sensor data, it could potentially impact the height of the structures. This is because intelligent transportation systems typically rely on vehicles that are connected to roadside units in close proximity. It has been found that the robustness of the comparison model develops, but subsequently begins a trend that leads it to decrease until it reaches a number that is considered to be crucial. The focus of this work is on groups or ensembles. In the context of classification, an ensemble is a composite model that is made up of a number of different classifiers
The research review delves into the integration of ML and Data Mining (DM) systems within the context of sustainable smart cities, particularly emphasizing their applications in intelligent transportation systems. A considerable amount of emphasis was placed on illustrative papers that elucidate on the application of ML techniques in the context of sustainable smart city networks, particularly with regard to traffic classification. Researchers investigating the topic of anomaly traffic categorization have conducted extensive research into a variety of feature selection and extraction strategies. Utilizing the aforementioned methodologies is standard practice for enhancing the dependability and usefulness of research studies conducted in this field. In order to classify internet traffic using techniques such as machine learning and data mining, both data and data features are required. Results are shown in Figure 7 as accuracy with each attribute as well as shown in Table 2.
These assessment indicators have been extensively employed in various studies for the purpose of acquiring and assessing the outcomes. Accuracy refers to the ratio of correctly identified traffic to the total tested traffic, specifically the proportion of accurately categorized real traffic from the whole pool of tested traffic. Precision is defined as the ratio of accurately categorized traffic, specifically, the ratio of correctly identified genuine traffic to all identified traffic. Recall refers to the ratio of accurately identified traffic (f) to the total amount of traffic. It represents the proportion of correctly identified true traffic in relation to the overall true traffic. As a result, it is necessary to provide a description of well-known and frequently utilized datasets that contain specific statistical information. This paper provides a comparison of algorithms with the detailed overview of the challenges and methods used in machine learning techniques for traffic classification. These methods and suggestions pertain to the classification of traffic. In the same manner, it is essential to provide a recommendation for each method, as recommendations are also pertinent to future activities. Nonetheless, this work presents a number of traffic classification proposals that are extremely valuable for future research. This employs the two feature engineering technologies, including spatial analysis and data for specific time durations and distances from which images of particular junctions and vehicles are generated. Additionally, an additional feature engineering technology is employed to gather data through sensors. The estimation of traffic density is contingent upon the utilization of these two feature engineering technologies. Additionally, this research conducted feature engineering by incorporating domain expertise in transportation.
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