Aug 14, 2019

Waymo's self-driving vans learn the struggles of parking

A Waymo van learns how to navigate parking lots. Photo: Waymo

Waymo's self-driving vans are learning to share the human driver hatred of shopping mall parking lots.

Why it matters: Parking lots are one of the most difficult environments for a self-driving car to master: unruly vehicles, darting pedestrians and the occasional runaway shopping cart contribute to a Wild West atmosphere.

What's happening: Waymo, a self-driving development company, is teaching its automated test vehicles how to navigate this chaotic environment by practicing on 91 acres at the former Castle Air Force base near Merced, Calif., Popular Science reports.

The state of play ... Engineers can dial up the complexity in a variety of ways:

  • They can control cars reversing out of parking spots, traveling the wrong way down a lane or cutting across empty spaces.
  • They can add people carrying large packages — which affects how the car's perception system sees them — and cause them to dart in front of the car's path.
  • They taught Waymo's vans to be cautious around dumpsters, which can obscure a shopping cart rolling out into traffic.

The bottom line: Just like on roadways, Waymo must map out the parking lot, including details like the orientation of angled parking stalls for cues about the direction of traffic.

  • Parking lots are uniquely challenging, Waymo's Stephanie Villegas tells Popular Science.
  • “They don’t really have standardized rules for how people should and can move about within them. They’re just kind of lawless."

Go deeper: Companies get innovative to fill in urban transportation gaps

Go deeper

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Updated 24 mins ago - Politics & Policy

Trump accuses Twitter of interfering in 2020 election

President Trump speaks to the press as he departs the White House in Washington, D.C., on Thursday. Photo: Mandel Ngan/Getty Images

President Trump responded via tweets Tuesday evening to Twitter fact-checking him for the first time on his earlier unsubstantiated posts claiming mail-in ballots in November's election would be fraudulent.

What he's saying: "Twitter is now interfering in the 2020 Presidential Election.They are saying my statement on Mail-In Ballots, which will lead to massive corruption and fraud, is incorrect, based on fact-checking by Fake News CNN and the Amazon Washington Post," the president tweeted. "Twitter is completely stifling FREE SPEECH, and I, as President, will not allow it to happen!"

Twitter fact-checks Trump's tweets for first time

President Trump briefs reporters in the Rose Garden on May 26. Photo: Brendan Smialowski/AFP via Getty Images

Twitter fact-checked two of President Trump's unsubstantiated tweets that mail-in ballots in the 2020 election would be fraudulent for the first time on Tuesday, directing users to "get the facts" through news stories that cover the topic.

Why it matters: Twitter and other social media platforms have faced criticism for not doing enough to combat misinformation, especially when its propagated by the president.