Multi-lane signalized intersection simulation based on cellular automata - with Matlab source code
In this article, we describe how to use cellular automata to simulate traffic flow at a multi-lane signalized intersection. We will provide you with the corresponding Matlab source code, allowing you to conduct simulation experiments and observe the behavior of traffic flow.
Cellular automaton is a computational model that simulates complex systems. It consists of many simple cells (called cells) that update their state according to a set of rules and interact with neighboring cells around them. In our model, each vehicle is treated as a cell, and each lane of an intersection is represented by a row of cells.
First, let's define some basic parameters. We will assume that the intersection has four lanes, each lane being 10 cells long. We will also define some parameters of the traffic flow, such as the vehicle spawn rate, the maximum speed of the vehicle, and the vehicle's ability to slow down.
num_lanes = 4; % 车道数
lane_length = 10; % 车道长度
generation_rate = 0.3; % 车辆生成率
max_s