Sign up for our daily briefing

Make your busy days simpler with Axios AM/PM. Catch up on what's new and why it matters in just 5 minutes.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Catch up on coronavirus stories and special reports, curated by Mike Allen everyday

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Denver news in your inbox

Catch up on the most important stories affecting your hometown with Axios Denver

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Des Moines news in your inbox

Catch up on the most important stories affecting your hometown with Axios Des Moines

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Minneapolis-St. Paul news in your inbox

Catch up on the most important stories affecting your hometown with Axios Twin Cities

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Tampa Bay news in your inbox

Catch up on the most important stories affecting your hometown with Axios Tampa Bay

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Charlotte news in your inbox

Catch up on the most important stories affecting your hometown with Axios Charlotte

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!

A car in the Auvergne region of France in October 2018. Photo: Thierry Zoccolan/AFP/Getty Images

Most AVs use a combination of lidar, radar and cameras to survey their environment, but these technologies can fall short in even mildly inclement weather, and few AV systems meaningfully incorporate external data on weather and road conditions.

The big picture: Fully automated AVs will need to be able to pull and analyze information from various sensors on and off the vehicle to safely navigate. Despite industry optimism, however, getting this technology up to speed will likely take years.

Details: AVs can struggle to collect accurate data in adverse driving conditions, let alone make use of it.

  • Ice, snow, water, and even dust or fog can obscure camera lenses.
  • They can also cause a vehicle's lidar to interpret anything obscuring the sensor as an obstacle, triggering a sudden brake.
  • Radar works proficiently in poor weather because its can penetrate thick fog, rain and snow. But it doesn’t offer enough detail for navigating busy roads.

Where it stands: Carmakers have begun to develop and test technology to address the challenges posed by weather.

  • Google has fitted windscreen wipers onto vehicles lidar domes to improve detection accuracy, but in particularly adverse weather its cars have to pull over and wait for better conditions.
  • Ford and the University of Michigan recently announced that they developed 3D map technology that augments lidar's capabilities when inclement weather interferes with sensors.
  • Volvo is testing cars in Sweden to try to identify and address sensing challenges associated with low visibility, icy roads and heavy snow.

Connectivity will be key, including data transmitted by other vehicles.

  • Road weather information systems, which measure weather and pavement conditions, also produce highly accurate data that should be made accessible to AVs.

What to watch: The American Meteorological Society and other organizations are stepping in to help facilitate discussion regarding weather data requirements, such as how often it should be transmitted and what level of precision is needed for AVs to operate safely.

Kevin Petty is the chief science officer at Vaisala and a former meteorologist at the National Transportation Safety Board.

Go deeper

Updated 1 hour ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Health: Coronavirus deaths reach 4,000 per day as hospitals remain in crisis mode — CDC warns highly transmissible coronavirus variant could become dominant in U.S. in March.
  2. Politics: Biden says, "We will manage the hell out of" vaccine distribution — Biden taps ex-FDA chief to lead Operation Warp Speed amid rollout of COVID plan — Widow of GOP congressman-elect who died of COVID-19 will run to fill his seat.
  3. Vaccine: Battling Black mistrust of the vaccines"Pharmacy deserts" could become vaccine deserts — Instacart to give $25 to shoppers who get vaccine.
  4. Economy: Unemployment filings explode againFed chair: No interest rate hike coming any time soon —  Inflation rose more than expected in December.
  5. World: WHO team arrives in China to investigate pandemic origins.

NRA declares bankruptcy, says it will reincorporate in Texas

Wayne LaPierre of the National Rifle Association (NRA) speaks during CPAC in 2016. Photo: Saul Loeb/AFP via Getty Images

The National Rifle Association said Friday it has filed for Chapter 11 bankruptcy and will seek to reincorporate in Texas, calling New York, where it is currently registered, a "toxic political environment."

The big picture: The move comes just months after New York Attorney General Letitia James filed a lawsuit to dissolve the NRA, alleging the group committed fraud by diverting roughly $64 million in charitable donations over three years to support reckless spending by its executives.

4 hours ago - Politics & Policy

Biden: "We will manage the hell out of" vaccine distribution

Joe Biden. Photo: Chip Somodevilla / Getty Images

President-elect Joe Biden promised to invoke the Defense Production Act to increase vaccine manufacturing, as he outlined a five-point plan to administer 100 million COVID-19 vaccinations in the first months of his presidency.

Why it matters: With the Center for Disease Control and Prevention warning of a more contagious variant of the coronavirus, Biden is trying to establish how he’ll approach the pandemic differently than President Trump.

You’ve caught up. Now what?

Sign up for Mike Allen’s daily Axios AM and PM newsletters to get smarter, faster on the news that matters.

Please enter a valid email.

Please enter a valid email.

Subscription failed
Thank you for subscribing!