Vehicle-To-Everything (V2X) technology fosters safety by providing knowledge of other vehicles' proximity, road infrastructure such as traffic lights, and road topology information. This enables the vehicle to alert the driver of situations that would otherwise lead to a collision or traffic violation and significantly increases road safety. To achieve this, the alert must be timely, correct and relevant to the driver. False warnings greatly decrease trust in the system and could lead to the warning being ignored or even adding to the drivers' distraction. To ensure that the alert is correctly triggered, the vehicle's driving environment must be accurately conveyed using map information. This paper aims to show how High Definition Maps (HD Maps) can make these warnings more relevant and contextual and reduce instances of irrelevant warnings distracting drivers. HD Maps greatly increase the accuracy of road topology descriptions and add additional information about roads and their characteristics. We show how HD maps improve existing safety-relevant use cases by making them more accurate and relevant to the driver. We conclude with the challenges faced in our testing and recommendations for the future creation and use of HD maps.

Toyota Motor Corporation Australia: Varun Srirama