Traffic flow simulation method and device, storage medium and electronic equipment
A simulation method and traffic flow technology, applied in the field of traffic simulation, can solve problems such as unrealistic deceleration
Pending Publication Date: 2020-04-14
万物镜像(北京)计算机系统有限公司
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[0003] However, the vehicle simulated by the existing cellular automata model can only accelerate and decelerate with a large discrete acceleration.
At the same time, under the parallel update rule, the movement distance of the preceding vehicle in the same time step is defaulted as the vehicle safety distance, so that the vehicle will experience unrealistic driving fluctuations due to deterministic (safe) deceleration during driving
For example, the cellular automata model does not produce accelerations greater than the parameterized value of maximum acceleration during simulation, but may produce unrealistic decelerations in vehicle state updates due to deterministic deceleration rules related to the driving space
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[0090] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.
[0091] figure 1 As shown, it is a flowchart of a traffic flow simulation method provided according to an embodiment of the present disclosure, such as figure 1 As shown, the method includes:
[0092] In S11, construct the simulation road and the simulation vehicle set on the simulation road and set the speed and position of each simulation vehicle, wherein the driving direction of the simulation vehicles in the simulation vehicle set is consistent.
[0093] Among them, the simulation environment includes road network structure, simulated vehicles, signal lights, clock updates, etc., which can be simulated through existing simulation frameworks, for example,...
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The invention relates to a traffic flow simulation method and device, a storage medium and electronic equipment. The method comprises the following steps: constructing a simulation road and a simulation vehicle set on the simulation road, and setting the speed and the position of each simulation vehicle; determining the target speed of the first target simulation vehicle at the next moment based on a cellular automaton model; updating the position of the first target simulation vehicle at the next moment according to the target speed at the next moment; if there are rear vehicles of the firsttarget simulation vehicle in the driving direction, updating the driving space corresponding to each rear vehicle and the state information of the next moment according to the target speed of the nextmoment and the position of the next moment; and if the rear vehicle of the first target simulation vehicle in the driving direction does not exist, updating the driving space corresponding to the next moment of the first target simulation vehicle according to the position of the next moment. Therefore, simulation can be carried out more accurately.
Description
technical field [0001] The present disclosure relates to the field of traffic simulation, and in particular, to a traffic flow simulation method, device, storage medium and electronic equipment. Background technique [0002] In the prior art, in the field of traffic simulation, it is an important method to use the cellular automata model for simulation. The cellular automata model refers to a dynamical system defined in a discrete space composed of cells and evolving in a discrete time dimension according to certain update rules. The cellular automaton model of traffic flow is easy to carry out computer programming and numerical simulation, and various traffic conditions, such as ramps and traffic lights, can also be added. Based on the cellular automata model, traffic flow simulation at the road, intersection, and network levels can be carried out, and the macroscopic characteristics of traffic can be simulated to a certain extent, as well as some complex traffic phenomena...
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IPC IPC(8): G06F30/20
Inventor 敬明李东珂倪宏杰尹光文李龙辉
Owner 万物镜像(北京)计算机系统有限公司