Research on Traffic Flow Characteristics of Urban Expressway

Abstract:

Urban expressways play an important role in urban traffic networks. Different from the highway speed-flow-density relationship, the urban expressway has more complicate characteristics. With the traffic stream data collected from loop detectors on different sites of the expressway in Beijing, traffic parameters of traffic speed, density and volume are analyzed. As the relationship of speed flow and density changes remarkably during different period of time, this paper establish a speed-flow-density model during nighttime and daytime separately. The relationship among traffic density, speed and volume are key-points analyzed. The research can provide data support and scientific basis for the design and planning of urban expressway.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 2036-2039
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.2036
• Online since: July 2014
• Authors: Yue Li*, Hua Pu Lu
• Keywords: Mixed-Flow Model, Statistical Analysis, Traffic Flow, Urban Expressway

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