No, the bus lanes have no benefit because there is no congestion on those roads. The only place where there is congestion is the set of traffic lights at the top, where a right-lane bus lane and traffic light overtake would provide benefit...this is not provided, naturally.
The accidents would be reduced or eliminated entirely if the bus lanes were removed as they are all caused by cars turning left across the front of buses. Without the bus lanes the cars would simply drive in the left hand lane, with the right hand lane only used by vehicles turning right or overtaking stationary buses, because, er, there's no congestion.