Driverless vehicles promise a future with less congestion and pollution, fewer accidents resulting from human error and better mobility for people with disabilities, supporters say. So it was on Tuesday in San Francisco, where a driverless car somehow drove into a city paving project and got stuck in wet concrete. Driverless cars have become a common sight in San Francisco, a tech hub where they are often seen on test drives, gathering data that is used to improve their autonomous technology. Though driverless cars have not been blamed for any serious injuries or crashes in San Francisco, they have been involved in several jarring episodes. “We might frame this as a positive that all it did was get stuck in the concrete.”He added that when driverless cars encounter conditions like cones and wet concrete, they “can learn from it and the machines can figure out what to do better next time.”The post Driverless Car Gets Stuck in Wet Concrete in San Francisco appeared first on New York Times.