Are there any drivers in the audience who can tell us what different ratings mean?
Drivers are prompted to rate their passenger immeditely after the trip, in the exact same manner as riders rate their driver. Then, when a trip is offered to a driver, they're shown the potential customers rating (and other details), then the driver will choose to accept the job or not
On lyft, on the other hand, 5 means good, 4 means needs work, 3 means "don't match us up again" and 2 and 1 mean "recommend deactivation", 1 means "dangerous".