García González, JorgeFernández Andrés, JavierAliane, NourdineSánchez Soriano, Javier2026-02-062026-02-062025García-González, J., Fernández-Andrés, J., Aliane, N., & Sánchez-Soriano, J. (2025). Big data and i2x communication infrastructure for traffic optimization and accident prevention on automated roads. IEEE Access, 13, 133497-133509. https://doi.org/10.1109/ACCESS.2025.35923102169-3536https://hdl.handle.net/11268/16801This paper presents a scalable big data infrastructure designed to support traffic optimization and accident prevention in automated and connected road environments. The proposed system integrates real-time data acquisition from heterogeneous sources, including multichannel roadside camera gantries and IoT-enabled vehicle telemetry. The architecture is built upon technologies such as Apache Kafka, Apache Beam, and MongoDB, enabling high-throughput data ingestion, processing, and storage. To validate its performance, two experimental use-cases were developed: one for large-scale image ingestion and another for vehicle telemetry data streaming.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/journal article0.1109/ACCESS.2025.3592310open accessTransporteControl automáticoAutomatizaciónGoal 9: Build resilient infrastructure, promote sustainable industrialization and foster innovation