(Reuters) - Alphabet Inc's (O:GOOGL) Waymo, widely considered the front-runner in self-driving vehicles, on Wednesday joined a growing chorus of dissenters panning a California requirement on reporting test data, as the state released 2019 results.
Waymo tweeted that the metric, called disengagements, is not an accurate or relevant way to measure a company's technical progress, even though it is widely used to do that.
"The disengagement metric does not provide relevant insights" nor does it distinguish Waymo's "performance from others in the self-driving space," the company said.
California requires self-driving companies to provide disengagement data on how often a human driver must intervene to take control from a self-driving system during testing on public roads.
Other self-driving companies, including General Motors Co's (N:GM) Cruise and California startup Aurora also have criticized the disengagement data.