METHOD AND SYSTEM FOR DETERMINING TRAFFIC CONGESTION

A method for determining traffic congestion according to an embodiment of the present disclosure comprises: collecting road information on which the vehicle is driving and information on at least one surrounding vehicle driving in an adjacent lane using at least one sensor; aligning the at least one surrounding vehicle based on a longitudinal distance from an ego vehicle and allocating at least one slot to the at least one surrounding vehicle, and determining retention or transition of the slot; determining vehicle driving speed of the adjacent lane by using vehicle speed of the at least one surrounding vehicle; calculating congestion degree of the adjacent lane in a congestion section based on a one-dimensional traffic flow model; determining whether there is traffic congestion in the adjacent lane by using the congestion degree of the adjacent lane; and controlling the ego vehicle according to whether there is the traffic congestion.