But there isn't enough experience with driverless vehicles yet to know all their weaknesses and whether they're safer than human drivers and if so by how much. Nidhi Kalra, co-director of the Center for Decision Making Under Uncertainty at the research group Rand Corp., recently told The Times that robot cars have proved less likely to get into minor crashes than human drivers. But "when it comes to injuries and fatalities, we won't be able to know until we've had hundreds of millions or billions of miles" of driving history.

Source: Los Angeles Times March 19, 2018 17:22 UTC