Infrastructure-to-Vehicle

Infrastructure-to-Vehicle (I2V) is a type of Vehicle-to-Everything (V2X) communication, specifically referring to the transmission of information from fixed roadside infrastructure—such as traffic lights, sensors, and Roadside Units (RSUs)—to moving vehicles. Its core purpose is to provide vehicles with beyond-line-of-sight awareness, such as upcoming traffic signal timing or warnings about pedestrians in blind spots. Within a risk management framework, I2V is a critical data source but also a potential cyber-attack surface. The international standard ISO 21177 defines the communication architecture for Intelligent Transport Systems (ITS), including I2V. Concurrently, ISO/SAE 21434 mandates that automotive manufacturers conduct a Threat Analysis and Risk Assessment (TARA) on I2V channels to ensure the authenticity, integrity, and availability of transmitted data, preventing accidents caused by malicious information. It is the opposite of V2I (Vehicle-to-Infrastructure), which involves vehicles uploading data.

In enterprise risk management, securing I2V communication is vital to prevent flawed decision-making in automated driving systems. A practical application involves three steps. First, conduct a Threat Analysis and Risk Assessment (TARA) per ISO/SAE 21434 to identify potential attacks on the I2V link, such as spoofing traffic light messages or denial-of-service (DoS) attacks, and assess their safety impact. Second, implement security controls, such as a Public Key Infrastructure (PKI) based on standards like ETSI TS 103 097, to digitally sign all I2V messages, ensuring their authenticity and integrity. Third, establish a continuous monitoring and response mechanism through a Vehicle Security Operations Center (VSOC) to detect anomalies in I2V data streams and execute incident response plans. A leading European OEM used this process to reduce collision risks from malicious I2V data by over 98%, successfully passing its UNECE R155 cybersecurity type approval audit.

Taiwan enterprises face three primary challenges with I2V implementation. First, inconsistent communication standards and infrastructure, with DSRC and C-V2X technologies competing and uneven Roadside Unit (RSU) deployment nationwide, complicates development and testing. Second, a nascent local regulatory framework lacks clear rules on data privacy and liability for I2V-related incidents, increasing compliance uncertainty. Third, a cross-disciplinary talent gap exists, as I2V requires a blend of expertise in telecommunications, automotive engineering, and cybersecurity. To overcome these, firms should adopt dual-mode hardware supporting both DSRC and C-V2X and actively participate in government-led field trials. Proactively aligning with global best practices like ISO/SAE 21434 and GDPR can mitigate regulatory risk. Partnering with expert consultants like Winners Consulting can bridge the talent gap by implementing structured security processes and providing targeted training.

Winners Consulting specializes in Infrastructure-to-Vehicle for Taiwan enterprises, delivering compliant management systems within 90 days. Free consultation: https://winners.com.tw/contact