Since the advent of Intelligent Transportation Systems, research on the use of information for real-time transportation system management has been much conducted. The recent advances in wireless and sensor technologies have rapidly promoted the seamless integration of information of various types from transportation networks to benefit drivers and provide a wide array of transportation-oriented services. These advances in information technology and wireless communications have enabled innovative and cost-effective mobile services and applications for traffic networks. It is envisioned that inter-vehicle and infrastructure-to-vehicle communications would become technically practical in the near future, resulting in an operational “internet on the road”. Due to its interdisciplinary nature, this area has sparked a great deal of interest among researchers in wireless communication, transportation and traffic engineering, vehicular technologies, network operational research, etc. In addition, the area has gained significant traction with both public agencies and private industry. The goal of this special issue is to bring together the recent advances in vehicular infrastructure integration (VII) and vehicle to vehicle communications (V2V) paradigms that aim to develop efficient information dissemination systems to significantly improve traffic management, safety, and control.