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Flow-density Relations Satisfying Stationary Conditions using Statistical Analysis  

Kim, Yeong-Ho (한국교통연구원 도로교통연구실)
Publication Information
Journal of Korean Society of Transportation / v.24, no.5, 2006 , pp. 135-142 More about this Journal
Abstract
The flow-density relations represent equilibrium relations between flow and density in the stationary state. Using individual vehicle data this paper proposed a method to 131ter traffic data in the stationary state and showed flow-density relations produced by the traffic data in the stationary state. The Proposed method is based on the idea that free flow and congested flow show totally different traffic behaviors and time series of the traffic data observed at detection stations. The traffic data collected from the stationary state in the free flow using this filtering method consist in the left branch of the flow-density relation and the traffic data collected from the stationary state in the congested flow consist in the right branch of the flow-density relation. The traffic data in the stationary state skew reproducible flow-density relation in the almost whole range of the traffic flow.
Keywords
flow-density relations; stationary state; nearly-stationary state; statistical analysis reproducibility;
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