A micro-traffic simulation method for two-lane cellular automata for simulating dynamic lane-changing behavior

Abstract

The invention discloses a two-lane cellular automaton micro-traffic simulation method for simulating dynamic lane-changing behavior. The method comprises the following steps: (1) determining the basic parameters of the simulation system; (2) creating the simulation system, and performing Initialization; (3) Lane change, including: checking the motivation for lane change, calculating the intensity index of the motivation for lane change, determining the distance between lanes and the probability of lane change, and performing lane change operations; (4) Evolution update, including: acceleration, vehicle in front Estimation of speed, deceleration, random slowing, and movement; (5) Calculation of key traffic parameters of traffic flow density, speed and flow. The dynamic changes of driving psychology and driving behavior, as well as the resulting complex and dynamic movement process of the interaction between vehicles, more realistically simulate the dynamic lane changing behavior of drivers, and provide scientific guidance for the planning, design and management of traffic systems .

Description

[0001] Field [0002] The invention relates to the technical field of traffic engineering, in particular to a microcosmic traffic simulation method of a two-lane cellular automaton for simulating dynamic lane changing behavior. Background technique [0003] Cellular automata is a dynamic model that is discrete in time, space, and state, and has the ability to simulate the spatiotemporal evolution of complex systems. After being introduced into the transportation field, it has developed rapidly. The single-lane cellular automaton simulation system was developed first, and has been the most widely researched and developed because of its advantages of simple structure, intuitive image, and easy simulation. However, the single-lane cellular automaton model cannot simulate the phenomenon of vehicles changing lanes between different lanes when simulating the movement of vehicles, so it cannot analyze and study the driver's overtaking behavior. [0004] In order to overcome the lim...

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Problems solved by technology

[0008] The present invention just aims at the problem that the real lane-changing process cannot be well simulated in the prior art and does not conform to the real traffic conditions, and provides a micro-traffic simulation method of dual-lane cellular automata for simulating dynamic lane-changing behavior. It can well simulate the real operation of vehicles in the two-lane traffic system, well reflect the dynamic changes in driving psychology and driving behavior, and the resulting complex and dynamic movement process of the interaction between vehicles, and more realistically simulate the driver's emotions. Dynamic lane changing behavior provides scientific guidance for the planning, design and management of the traffic system, which is more in line with actual needs

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