Michael Manville, associate professor of urban planning, spoke to LAist about a study examining the impact that Uber and Lyft have on road congestion. The study, which was commissioned by the rideshare services, found that they accounted for 2 to 3 percent of all vehicle miles traveled in Los Angeles County in September 2018. “If [Lyft and Uber] have confessed to slowing you down while you are in traffic, then they have confessed to sharing in the crime that you are also committing,” said Manville, a faculty fellow with UCLA Luskin’s Institute of Transportation Studies. Manville said his colleagues like to joke that a more interesting study would be to look at how much Ford and Toyota contribute to traffic congestion. “It’s fun to blame tech companies for things — they’re really easy to dislike — but congestion is something that we all cause,” he said.