Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1999-05-20
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
We present an empirical phase diagram of the congested traffic flow measured on a highway section with one effective on-ramp. Through the analysis of local density-flow relations and global spatial structure of the congested region, four distinct congested traffic states are identified. These states appear at different levels of the upstream flux and the on-ramp flux, thereby generating a phase digram of the congested traffic flow. Observed traffic states are discussed in connection with recent theoretical analyses.
Kim Dongseok
Lee Ha Youn
Lee Hyun Woo
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