A method for autonomous vehicles to change lanes on a motorway may include steps of providing a computer system enabling an incoming vehicle that conducts lane change to negotiate with an incumbent vehicle that stays in its lane; generating first synchronous data on traffic density and traffic speed to the vehicles in both the transversal and longitudinal directions on the motorway; generating second synchronous data on traffic density and traffic speed to said vehicles for vehicles entering on the motorway and exiting the motorway; providing a summary of historical statistics on the first and second synchronous data to the vehicles; calculating a fair price of each lane of the motorway at a predetermined location, at a predetermined time and within a predetermined tolerance; and generating a protocol to change lanes, wherein said incoming vehicle pays said incumbent vehicle the fair price to move in front of the incumbent vehicle.