Open AccessResearch and empirical Analysis of Traffic flow Modeling based on fluid Mechanics
Author(s) -
Jie Tang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/692/4/042102
Subject(s) - overtaking , mechanics , flow (mathematics) , traffic flow (computer networking) , flow coefficient , traffic wave , fluid mechanics , physics , computer science , engineering , traffic congestion reconstruction with kerner's three phase theory , traffic congestion , civil engineering , computer security , transport engineering
In this paper, the overtaking lane change flow is introduced, and the corresponding traffic flow continuity equation is established. Through the differential analysis of traffic flow parameters, the motion differential equation of road traffic flow is established. Compared with fluid mechanics, according to Newton’s second law, the simple calculation of traffic pressure, viscous resistance coefficient and viscous resistance is put forward, and the interference from downstream traffic wave is defined as the viscosity of traffic flow, and the difference between wave velocity and maximum wave speed is the coefficient of viscous resistance along the way. the viscous resistance along the route is proportional to the length of the lane, the rate of change of flow along the direction of traffic flow and the coefficient of viscous resistance along the route. The model can obtain the relationship between traffic flow parameters. The simulation example shows that the model can reflect the basic characteristics of traffic flow.