Preliminary Considerations for a Cooperative Intelligent Transport System Cybersecurity Reference Architecture Cyber security and privacy are major challenges for interconnected automatic driving cars which rely on confidentiality, integrity, availability, authenticity, accountability as well as privacy of a cooperative intelligent transport system (CITS). The cars require detailed data about the environment on different levels to generate a comprehensive overview of the current traffic situation in real time to ensure their safe and secure movement. The availability, integrity, authenticity and accountability of data and its processing are a prerequisite for automated and interconnected driving. Additionally, confidentiality and privacy are main requirements for using CITS services. Cyber security is not only necessary for an efficient traffic management. Cooperative functions and coordinative autonomy is mandatory, since successful intentional attacks on a CITS in fact threaten human lives. There is a fundamental need for a comprehensive harmonization of safety and security aspects from the infrastructure provideru0027s perspective to ensure awareness and trust  and not solely from an original equipment manufactureru0027s (OEM) view. Especially cyber security is essential to make these cooperative traffic structures and autonomous interconnected driving technologies confidently available to society. In this paper, the approach for component identification, scoping, use case development, and the applied risk management method as preliminary work for the development of a comprehensive CITS cybersecurity reference framework is discussed. These steps are part of a currently ongoing research project.

CooperativeIntelligent Transport Systems for Vulnerable Road Users Safety CooperativeIntelligent Transport Systems (CITS) are one of the flagships of new coming automotive and communication industries. Mobility needs to be safer and more efficient and CITS are the key for this new era. On the one hand, organizations like ETSI, IEEE, SAE, 3GPP or ISO are developing the standards for the new technologies and protocols and, on the other, manufacturers and operators are deploying and testing their first pilots. In this paper, we present a pilot developed by a group of stakeholders, in which vehicles will alert drivers of potential collisions with vulnerable road users riding bicycles. It is a multidisciplinary project where there are different architecture components: CITS stations integrated in vehicles, vehicles provided with digital cockpits that show warning messages to the driver, lowcost CITS stations attached to bicycles which are equipped with a high precision location system based on the fusion of different information sources as GPS, inertial sensors and Ultra Wide Band ranging and finally communication between CITS stations is provided by a network that supports low delay CV2X communications with a Multiaccess Edge Computing which takes routing decisions.