Phantom Traffic: Platoon Formed at Low Traffic Density
Publication: Journal of Transportation Engineering, Part A: Systems
Volume 145, Issue 2
Abstract
On a highway, it is generally observed that as traffic flow increases, vehicles tend to travel closely and form platoons. However, sometimes platoons are formed at even a low traffic density and therefore a high traffic speed, and phantom traffic has been believed to be one of the causes. It is necessary to understand the process and characteristics of platoon formation and dispersion for efficient traffic operation and safety, and to understand why phantom traffic is formed even when traffic density is low. This study assumes that the random variation of speed (involuntary speed change) can be a critical factor that is involved in platoon formation and dispersion. A single-lane platoon-generation model based on a simple vehicle movement rule incorporating the random speed variation is developed and the characteristics of vehicle platoons are investigated through a simulation. The results show that random speed variation can be one of the factors related to platoon generation and dispersion. Initial speed and initial spacing also are found to affect the variation of the number and size of platoons.
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References
Arasan, V. T., and S. H. Kashani. 2003. “Modeling platoon dispersal pattern of heterogeneous road traffic.” Transp. Res. Rec. 1852: 175–182. https://doi.org/10.3141/1852-22.
Capaldo, F. S., and L. Biggiero. 2014. “Experimental survey and modeling for the driver behavior in vehicle platoons.” Procedia-Social Behav. Sci. 138 (14): 279–288. https://doi.org/10.1016/j.sbspro.2014.07.205.
Castle, D. E., and J. W. Bonniville. 1985. “Platoon dispersion over long road link.” Transp. Res. Rec. 1021: 36–44.
Gattis, J. L., M. S. Alguire, K. Townsend, and S. Rao. 1997. “Rural two-lane passing headways and platooning.” Transp. Res. Rec. 1579: 27–34. https://doi.org/10.3141/1579-04.
Gaur, A., and P. Mirchandani. 2001. “Method for real-time recognition of vehicle platoons.” Transp. Res. Rec. 1748: 8–17. https://doi.org/10.3141/1748-02.
Glimm, J., and R. E. Fenton. 1980. “An accident-severity analysis for a uniform-spacing headway policy.” IEEE Trans. Veh. Technol. 29 (1): 96–103. https://doi.org/10.1109/T-VT.1980.23827.
Graham, E. F., and D. C. Chenu. 1962. “A study of unrestricted platoon movement of traffic.” Traffic Eng. 32 (7): 11–13.
Hall, R., and C. Chin. 2005. “Vehicle sorting for platoon formation: Impact on highway entry and throughput.” Transp. Res. Part C 13 (5–6): 405–420. https://doi.org/10.1016/j.trc.2004.09.001.
Helbing, D. 2001. “Traffic and related self-driven many-particle systems.” Rev. Mod. Phys. 73 (4): 1067–1141. https://doi.org/10.1103/RevModPhys.73.1067.
Helbing, D. 2004. “Collective phenomena and states in traffic and self-driven many-particle systems.” Comput. Mater. Sci. 30 (1–2): 180–187. https://doi.org/10.1016/j.commatsci.2004.01.026.
Helly, W., and P. G. Baker. 1967 “Acceleration noise in a congested signalized environment in vehicular traffic science.” In Proc., 3rd Int. Symp. on the Theory of Traffic Flow, edited by L. C. Edie, 56–61. New York: Elsevier.
Manar, A., and K. G. Baass. 1996. “Traffic platoon dispersion modeling on arterial streets.” Transp. Res. Rec. 1566 (1): 49–53. https://doi.org/10.1177/0361198196156600106.
Mathew, J., H. Thomas, A. Sharma, L. Devi, and L. Rilett. 2013. “Studying platoon dispersion characteristics under heterogenous traffic in India.” Procedia-Social Behav. Sci. 104: 422–429. https://doi.org/10.1016/j.sbspro.2013.11.135.
Michaelian, M., and F. Browand. 2000. “Field experiment demonstrate fuel savings for close-following.”. Berkeley, CA: Univ. of California.
Orosz, G., R. Szalai, and G. Stepan. 2009. “Exciting traffic jams: Nonlinear phenomena behind traffic jam formation on highways.” Phys. Rev. E 80 (4): 1–12. https://doi.org/10.1103/PhysRevE.80.046205.
Todd, K. 1988. “Effect of arterial platoon progression on capacity.” Traffic Eng. Control 29 (9): 468–470.
Tsao, H.-S. J., and R. W. Hall. 1994. “A probabilistic model for AVCS longitudinal collision/safety analysis.” Int. J. Intell. Transp. Syst. 1 (3): 261–274.
Vogel, K. 2002. “What characterizes a ‘free vehicle’ in an urban area?” Transp. Res. Part F 5 (1): 15–29. https://doi.org/10.1016/S1369-8478(02)00003-7.
Wong, G. C. K., and S. C. Wong. 2002. “A multi-class traffic flow model: An extension of LWR model with heterogeneous drivers.” Transp. Res. Part A 36 (9): 827–841. https://doi.org/10.1016/S0965-8564(01)00042-8.
Yu, J. C., and J. J. Lee. 1965. “Internal energy of traffic flows.” Highway Res. Rec. 456: 40–49.
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©2018 American Society of Civil Engineers.
History
Received: Dec 26, 2017
Accepted: Jul 24, 2018
Published online: Nov 21, 2018
Published in print: Feb 1, 2019
Discussion open until: Apr 21, 2019
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