Vanet's Relay Vehicle Ranking For Critical Transit Events Message Transmission Using Analytical Hierarchy Process

Critical traffic events, such as vehicular accidents and severe congestion, frequently occur on public roadways and require prompt intervention by authorities to maintain urban and highway functionality. Vehicles equipped with communication and monitoring capabilities present an opportunity for enhanced detection and notification of such incidents. However, the transmission of these event alerts to proper destinations can be problematic due to the potentially unreliable nature of the reporting entities, particularly when the alert message must be relayed between the detecting vehicle and the final recipient. Consequently, selecting the most appropriate intermediary vehicle among potential candidates becomes crucial. To address this issue, this work proposes the development and implementation of a Vehicle Credibility Factor (VCF) within Ad Hoc Vehicular Networks (VANETs). The VCF is generated through the application of multiple criteria representing traffic behavior as input parameters for the Analytical Hierarchy Process (AHP), a multicriteria decision-making methodology. The resultant VCF serves as a metric to determine, through ranking, the most dependable vehicles for transmitting sensitive information pertaining to critical traffic event alerts. This approach aims to enhance the reliability and efficiency of traffic event reporting systems, ultimately contributing to improved road safety and traffic management.