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 Defining the Overall System



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       During recent decades, we’ve experienced an era that the interaction between the available technologies has led to emerge new technologies and also new high-tech products replaced the outdated ones. Technologies resulted from electrical, electronics, communication and computer engineering sciences such as ICT or radio tracking technologies have been more effective than others. These technologies offer comprehensive services to markets. Among industries that have been influenced by these technologies in the last two decades, the automotive industry in particular and the vehicles’ electronic systems have considerable capacities for evolution and development. During the last few years the development in state-of-the-art information and communication technologies has brought diverse applications in the horizon for car designers and those involved in the transportation industry. These developments will completely transform the current view of the vehicle industry in the coming two decades. This view brings a new image of a vehicle with the aid of technologies such as DSRC or CVT and turns it to a reliable communication agent on the roads and routes.

The DSRC technology enables data exchange between vehicles (V2V) and also vehicles to roadside equipment (V2I) by providing a communication platform between the electronic equipment of the vehicles and communication equipment installed on the roadsides. In addition to the data exchange among vehicles, roadside units finally transfer their information to the CCR.

Up until now various technologies have been proposed to provide a communication platform for the intelligent transportation system that has the potential to implement different applications. But none of these technologies has expanded their scope as much as DSRC technology. The predicted applications for DSRC promise such capabilities for managing the vehicular data and road transportation systems which is considered as a breakthrough in the ITS domain.

Considering the complexities regarding applying DSRC technology and difficulties in developing the area of the applications due to the necessity of interaction with other related technologies, currently only basic applications of this technology has been implemented in some countries. These applications include vehicle tracking and automatic toll collection and they’ve been implemented through installing on-board equipment. Further the applications of this technology need a suitable communication platform and also standardization in different layers throughout the world, from physical to application layer. Considering these facts, the transportation organizations around the world and major automotive industries such as Daimler-Chrysler, Toyota, Nissan, BMW, Ford and GM have been trying to produce their new products based on the aforementioned technology to address the transportation management requirements in a more efficient manner. In this regard the US department of transportation has been implementing the IntelliDrive Project; the main pilot stage has been completed in spring 2012. This project uses data exchange between DSRC-based vehicles to provide a communication platform for controlling and managing traffic in urban and suburban routes.