Traffic flow simulation method and system based on cellular automaton

• Main Authors: YU XIN, HUAN HUAN, CAI HUIXING, QI DEMIN
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

The invention relates to a cellular automaton-based traffic flow simulation method and system, and relates to the field of highway management. The method comprises the following steps: acquiring lane and vehicle information of a first road section, and mapping the first road section into a two-dimensional cellular space; dividing the cellular space into cells according to the lane and the minimum unit of vehicle movement; the vehicles are randomly distributed in the cells, the states of the cells comprise a first state and a second state, and the types of the vehicles comprise a first vehicle and a second vehicle; iterating the time slice, calculating a new position of the vehicle, and updating the state of the cell according to the new position; establishing a model based on a cellular automaton, inputting a vehicle density ratio parameter to carry out iterative simulation, and outputting an average traffic flow; the vehicle density matching parameter comprises the ratio of the first vehicle density to the s