Overview of intersection vehicle-infrastructure integration based on bibliometrics

To understand the research status and future research hotspots in the field of vehicle -infrastructure integration at intersections, the Web of Science and CNKI databases were used as data sources to retrieve core journal articles from January 2000 to September 2024, totaling 427 articles. Through bibliometric analysis, statistics and visualization were performed from the perspectives of publication trends, literature sources, and keyword co-word analysis. The statistical results show that the number of publications in this field has been increasing in recent years, and the sample documents are highly representative. Keyword co-occurrence analysis shows that the research directions in this field mainly include intersection control, path and speed guidance, signal-vehicle collaborative optimization, modeling and simulation, multi-vehicle interaction safety, single vehicle safety, vulnerable road user safety, network communication, and roadside perception. The development context and specific methods of the above research directions were sorted out and summarized, and based on this, the future research hotspots in the field of intersection vehicle -infrastructure integration were prospected.