DSRC based V2V communication

The growing number of work zones on US roadways demandsthe need for a traffic information system to warn the drivers of timely updates on travel time and congestion lengths. Dedicated short range communication (DSRC) is considered a key enabling wireless communication technology to realize such automated traffic information systems. We have previously developed a work zone information system using DSRC based V2I communication in conjunction with V2V communication. Our previously developedsystem,uses a roadside DSRC unit which acts as central control to facilitate the acquisition and dissemination of work zone travel parameters e.g., travel time (TT) and starting location of congestion (SLoC). However, the successful operation of this system depends upon reliable functionality of the roadside DSRC unit working as the central control. To improve system reliability and ease of deployment, we now propose to develop a work zone travel information system using V2V communication only, without needing any DSRC based roadside unit. In the proposed system, acquisition of TT and SLoC will be performed strictly using only DSRC based V2V communication. Furthermore, the dissemination of the acquired parameters will also be done using DSRC based V2V communication to both DSRC equipped vehicles and DSRC equipped PCMSs which are strategically placed alongside the road. DSRC equipped PCMSs will be able to receive these parameters from nearby DSRC equipped vehicles on the road via DSRC based V2V communication, and display them for the drivers of those vehicles lacking DSRC capability.Additionally, a rigorous analysis will be performed to investigate the minimum DSRC market penetration rate needed for successful functionality of the proposed system with respect to both acquisition and dissemination of TT and