We had trials and trials and I think it will happen sooner for Singapore though some unfortunate news recently.
http://www.channelnewsasia.com/news/singapore/nutonomy-halts-vehicle-trials-after-accident-at-one-north/3219314.html
If it's all driverless, it's safer that some driverless and some manual.
Does not commercial airlines mostly auto-pilot except take off and landing?