How can you optimize drivers' waiting time at Uber?

Just to make sure that I understand correctly the question, I can think of 3 types of waiting time that I can think of Ride request to Ride Start:-

1. Ride Request to Ride Acceptance Timing
2. Time it will take for driver to reach destination
3. Driver Waiting for Rider

• No of drivers available nearby
• Distance between Driver & Rider
• Avg. Speed b/w driver current location to source location (Source location is current location of rider from where ride will start)

1. Increase No of Drivers on platform
2. Driver availability across Time Periods(P0):- We need to optimize drivers availability across different time periods i.e. better incentives for drivers when Avg. waiting time is high to be available during those periods

1. Offer Rides to Drivers who are nearby(P0)
2. Demand/ Supply Graph for various neighbourhoods(P1) :- We can predict demand supply graph for various neighborhoods based on the data and using ML to predict the demand with thier likely destination. If a driver has completed a ride, driver should be asked to move to those neighbourhoods. 
3. Push Uber Pool if lesser wait time is possible(P2):- While booking a cab, we can also show the wait time if Uber Pool is used apart from showing the Money Savings being done by user. 
   • Another Use Case:- Let say a user has booked a cab from Society ABC to reach WeWork Building C at 9AM and there is another user who is having same Source / Destination or nearby source/ destination -> We can show a pop-up to this user if he wants to share the ride with another riders' profile and thier journey.

1. Guidance to reach Exact Location(P1) :- Rider to share the guidance for driver to reach its location easily so that driver does not get directed wrongly even though driver is nearby
2. Integration with "Park+" type parking Apps(P2):- In gated societies, where there is a proper checking process, once a cab has been booked - this information gets shared on such parking apps automatically to save time during manual car checking/verification process