Uber has just realised a video on how does their technology keep the passengers safe.
Identity of Driver is known: you will know the idenity of the driver and photo.
No pick up: some people might think this a disadvantage but you get to stay in a comfortable place and wait for your ride to come. This is a benefit
GPS: GPS is a huge factor in how safety is ensured for the passenger. 1) passenger is able to see on the map whether are they heading the right direction, 2) you will not get lost into an unfamiliar place, 3) the location of the taxi is been recorded.
Anonymous: when you contact the Driver they will not be able to see your number