A survey of vehicular-based cooperative traffic information systems

This paper summarises the research on cooperative traffic information systems based on vehicular ad hoc networks. Such systems are a promising concept for exchanging traffic information among vehicles. Their application enables reductions in fuel consumption, greenhouse gas emissions and travel time. Three classes of such systems are studied: infrastructureless solutions based on inter-vehicle communication, infrastructure-based solutions relying on the peer-to-peer paradigm and infrastructure-based systems using client-server architectures. Systems within each class are briefly introduced and their strengths and weaknesses are analysed.