How Autonomous Vehicles Are Learning to Navigate Rotary Intersections

In Episode 59 of Autonomous Vehicles Business with Fexingo, Lucas and Luna tackle a tricky edge case for self-driving cars: the rotary intersection, or roundabout. With roundabouts multiplying across the US—over 10,000 now, up from 3,000 a decade ago—AVs must master multi-lane spiraling, yielding, and gap selection. Lucas explains why roundabouts are harder than four-way stops, citing data from Waymo's recent Austin expansion where 23% of disengagements occurred at rotaries. Luna brings a University of Texas study showing lidar struggles with curved geometry. They discuss how simulation training, like Waymo's 'ChauffeurNet,' uses millions of virtual roundabout traversals, and why Tesla's vision-only approach may be at a disadvantage. The hosts also touch on the Rivian lawsuit over false self-driving promises and how it relates to consumer trust in AV roundabout navigation. A focused, numbers-driven episode for anyone following autonomous mobility. #AutonomousVehicles #Roundabouts #SelfDrivingCars #Waymo #Tesla #Rivian #Lidar #ChauffeurNet #Simulation #AVSafety #AutonomousNavigation #RotaryIntersections #EdgeCases #Business #Technology #FexingoBusiness #BusinessPodcast #AutonomousVehiclesBusiness Keep every episode free: buymeacoffee.com/fexingo