https://www.greencarcongress.com/2020/0 ... usdot.html
USDOT releases report on automated vehicles and adverse weather
. . . Vehicles with automated features to assist the driver in a variety of driving tasks, including steering and braking, are increasingly available on the road. Although these vehicles are manufactured with sensors, perception systems, and software to allow them to drive in various environmental conditions, most of the currently available systems are not designed to operate in all adverse weather conditions.
Like other vehicles, AVs must perform in a variety of adverse weather conditions. The report summarizes the findings of a Federal Highway Administration project that conducted 1) a literature review; 2) two experiments to observe the performance of AVs and their sensor systems under controlled conditions; and 3) three listening sessions with stakeholders. The report also provides background information on AVs and outstanding research needs.
Key findings of the report include important guidance for the future of AVs and AV research. For example, the limitations of AVs are not fully understood. Some of the vehicles studied for the report were challenged when exposed to adverse weather, and the team observed a significant amount of performance inconsistency from vehicle to vehicle. Some tested vehicles used different approaches to automation and driver assistance.
The report found that advancements in data connectivity, infrastructure support, and rulemaking are needed to improve safety and achieve higher levels of automation. In addition, state and local agencies must be better equipped to provide advice on AV use in adverse conditions.
Direct link to the 83 page report, which while long is well worth the read:
Automated Vehicles and Adverse Weather: Final Report
It's a bit odd that the report date is 2019-06-01 and we're only seeing it now, but maybe they've updated it for the "Final" version. They ran tests on five vehicles with L2 ADAS, all but one 2018 cars, with one 2016 for comparison. While they don't identify them, people with experience of how their ADAS-equipped vehicle display info will probably be able to recognize their model.