Journal
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Volume 392, Issue 24, Pages 6300-6306Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2013.07.035
Keywords
Traffic flow; Road capacity; Stability; Traffic risk coefficient; Reliability
Categories
Funding
- National Natural Science Foundation of China [71271016]
- National Basic Research Program of China [2012CB725404]
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Based on existing traffic flow models, in this paper we develop a macro traffic flow model taking into consideration road capacity to study the impact of the road capacity on traffic flow. The numerical results show that the road capacity destroys the stability of uniform flow and produces stop-and-go traffic under a moderate density and that the road capacity enhances the traffic risk coefficient and reduces the traffic system's reliability. In addition, the numerical results show that properly improving the road condition can enhance the road capacity, reduce the traffic risk coefficient and enhance the traffic system's reliability. (C) 2013 Elsevier B.V. All rights reserved.
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