Open AccessStudy on the phase diagram of the grade roundabout crossing with open boundary condition
Author(s) -
Kun Bai,
Hua Kuang,
Liu Mu-Ren,
Lingjiang Kong
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.5990
Subject(s) - roundabout , cellular automaton , diagram , traffic flow (computer networking) , computer science , flow (mathematics) , boundary (topology) , level crossing , range (aeronautics) , simulation , physics , mechanics , transport engineering , mathematics , mathematical analysis , algorithm , engineering , computer network , aerospace engineering , mechanical engineering , database
The traffic flow at the roundabout crossing with the inner roundabout lane and the outer roundabout lane is described by a cellular automaton traffic flow model with open boundary condition. Simulation results show that the boundary condition and bottlenecks affect the traffic flow at the roundabout crossing. The enter probability α and the out probability β can change the systemic flux in a certain range. Three phases of the system are differentiated by the relationship between the systemic flux and the enter probability α,the out probability β. The systemic phase diagram is also studied. The research can provide a reference for the realistic traffic control.