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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2010, Vol. 11 Issue (7): 520-529    DOI: 10.1631/jzus.A0900370
Transportation Engineering     
Optimal velocity functions for car-following models
Milan Batista, Elen Twrdy
Faculty of Maritime Studies and Transport, University of Ljubljana, 6320 Portoro?, Slovenia
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Abstract  The integral part of the optimal velocity car-following models is the optimal velocity function (OVF), which can be derived from measured velocity-spacing data. This paper discusses several characteristics of the OVF and presents regression analysis on two classical datasets, the Lincoln and Holland tunnels, with different possible OVFs. The numerical simulation of the formation of traffic congestion is conducted with three different heuristic OVFs, demonstrating that these functions give results similar to those of the famous Bando OVF (Bando et al., 1995). Also an alternative method is present for determining the sensitivity and model parameters based on a single car driving to a fixed barrier.

Key words： Traffic flow      Car following      Optimal velocity function (OVF)      Traffic congestion     
Received: 24 June 2009      Published: 06 July 2010
CLC:  U491.1+12  
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Milan Batista
Elen Twrdy
Cite this article:

Milan Batista, Elen Twrdy. Optimal velocity functions for car-following models. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2010, 11(7): 520-529.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0900370     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2010/V11/I7/520

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