Widespread use of self-driving cars in coming decades will increase congestion and pollution in the Washington region if governments don’t take steps to avoid such consequences, according a study commissioned by the D.C. government.

https://www.washingtonpost.com/local/trafficandcommuting/downsides-of-self-driving-cars-could-swamp-benefits-if-dc-region-fails-to-act-new-study-says/2020/04/18/92fb2d4e-7ffd-11ea-9040-68981f488eed_story.html