There are several, including papers from Uber. https://www.nytimes.com/2017/04/07/business/uber-drunk-driving-prevention.html https://www.nytimes.com/2017/04/0

There are several, including papers from Uber. https://www.nytimes.com/2017/04/07/business/uber-drunk-driving-prevention.html https://www.nytimes.com/2017/04/07/business/uber-drunk-drivi...