How the on-ramp inflow causes bottleneck |
| |
Authors: | Ding-wei Huang |
| |
Institution: | Department of Physics, Chung Yuan Christian University, Chung-li, Taiwan |
| |
Abstract: | We study traffic dynamics in a simple system with three open boundaries. Traffic patterns in steady states are mainly controlled by boundary conditions. There are three distinct phases in the entire parameter space. We construct a phase diagram and develop a mean-field theory to derive the phase regimes. The influences of speed limit are also discussed. We identify three kinds of on-ramp bottleneck: localized bottleneck in free flow, severe bottleneck in congestion, and extended bottleneck in rush hours. The first two are steady and the third is dynamical. The on-ramp bottleneck can be enhanced significantly by the dynamical effects of rush hours. |
| |
Keywords: | 89 40 -a 64 60 Cn 05 40 -a |
本文献已被 ScienceDirect 等数据库收录! |
|