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Traffic experiment reveals the nature of car-following.

ABSTRACT: As a typical self-driven many-particle system far from equilibrium, traffic flow exhibits diverse fascinating non-equilibrium phenomena, most of which are closely related to traffic flow stability and specifically the growth/dissipation pattern of disturbances. However, the traffic theories have been controversial due to a lack of precise traffic data. We have studied traffic flow from a new perspective by carrying out large-scale car-following experiment on an open road section, which overcomes the intrinsic deficiency of empirical observations. The experiment has shown clearly the nature of car-following, which runs against the traditional traffic flow theory. Simulations show that by removing the fundamental notion in the traditional car-following models and allowing the traffic state to span a two-dimensional region in velocity-spacing plane, the growth pattern of disturbances has changed qualitatively and becomes qualitatively or even quantitatively in consistent with that observed in the experiment.

SUBMITTER: Jiang R

PROVIDER: S-EPMC3989229 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Traffic experiment reveals the nature of car-following.

Jiang Rui R Hu Mao-Bin MB Zhang H M HM Gao Zi-You ZY Jia Bin B Wu Qing-Song QS Wang Bing B Yang Ming M

PloS one 20140416 4

As a typical self-driven many-particle system far from equilibrium, traffic flow exhibits diverse fascinating non-equilibrium phenomena, most of which are closely related to traffic flow stability and specifically the growth/dissipation pattern of disturbances. However, the traffic theories have been controversial due to a lack of precise traffic data. We have studied traffic flow from a new perspective by carrying out large-scale car-following experiment on an open road section, which overcomes ...[more]

PMID: 24740284

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