# Road to Efficiency: V2V Enabled Intelligent Transportation System
## 2 Motivations  
V2V is considered one of the potential technologies at the heart of ITSs. It is important to achieve such objectives as road safety, traffic management, and the negative impacts of transportation on the environment. The V2V systems enable the vehicle to acquire information about other vehicles' positions, velocities, and planned paths, which is critical for avoiding accidents and managing traffic flow [18]. This capability is essential as urbanization rises and accidents are likely to occur more frequently, coupled with traffic congestion. Another advantage of V2V communication is that it can significantly reduce car accidents. Such applications include real-time information sharing so vehicles can warn one another of risks such as sudden braking, objects on the road, or unfavorable weather conditions [19]. This early warning system allows a driver to take preventive action much earlier than relying on the time it takes for a human to react [20]. However, V2V communication empowers Advanced Driver Assistance (ADA) and autonomous control technologies that help to avoid road accidents in a faster and more precise way than the human driver. In addition to safety benefits, the primary purpose of V2V communication is to improve traffic efficiency. Through collaboration with others, the vehicles can employ resourceful path and velocity plans that will prevent traffic density formations and, in turn, shorten the overall transport time. For instance, V2V-equipped cars can develop platoons of vehicles that move nearby at the same speed limit [21]. It maximally expands the area of roads to transport more vehicles simultaneously, contributing to fuel efficiency and decreasing emissions. Thus, V2V communication helps improve traffic flow and is necessary to cater to cities' increasing traffic demands [22]. The environmental aspect is another area closely touched by V2V communication, where many differences are noted. Because they promote traffic flow and decrease density, V2V systems contribute to reducing greenhouse gas emissions and fuel consumption [23]. This is especially noble in the compacted regions where mobility is a chief contributor to smog. Furthermore, V2V communication enables the connection of electric and hybrid vehicles by effectively utilizing energy and determining the most efficient route. With transportation being an important area of focus where green innovations are being implemented, V2V communication will be an important avenue that boosts the realization of these environmental objectives [24]. Last but not least, the potential of V2V communication is not limited to the space it occupies in ITSs; it also enhances the other ancillary structures [25]. They allow smooth communication between vehicles and other entities, such as traffic signals and roadway appliances, to create a highly responsive transportation system. This system integration allows continuous flow control, route flexibility, and road incident handling. Besides improving the performance of individual vehicles, V2V communication, which acts as a basis for multiple ITS applications, also helps to optimize the functionality of the transportation system as a whole [26]. V2V communication is the foundation for many new services and applications, from platooning to autonomous driving. Through the lens of real-time data interchange and collaborative decision-making, travelers are promised a pattern of ease, comfort, and accessibility like never before, creating a picture of mobility redefined. From the domains of wireless communication to the frontiers of artificial intelligence and blockchain, V2V communication is a tribute to human creativity [27; 28]. These technical breakthroughs establish the framework for communication networks that are safe and dependable, scalable, and prepared to meet the voracious needs of tomorrow's transportation systems [29]. By presenting a comprehensive perspective on the condition of infrastructure components in V2V communication, we lay the groundwork for future advancements.