https://www.theregister.co.uk/2018/08/17/selfdriving_cars_will_be_safe_were_testing_them_in_a_massive_ai_sim/

The British government this week unveiled plans for an ambitious AI simulator to be used to test self-driving cars. It's part of a stated mission to make the UK the world's leading destination for testing autonomous vehicles.

The simulator, called OmniCAV, recreates a virtual version of 32km of Oxfordshire roads.