Phys. Rev. E 65, 046103 (2002) [5 pages]Highway on-ramp controlReceived 12 November 2001; published 18 March 2002 We study the phase transition on a highway induced by the fluctuations of on-ramp flow. The highway traffic is provided by a hydrodynamical model. We analyze the characteristics of perturbations to induce congestion near on ramp. The phase boundary is obtained. A scaling relation is revealed. We also analyze the time evolution of the local density profile. Conventional control mechanisms to regulate the on-ramp flow are examined. A control scheme is proposed to suppress the congestion. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.65.046103
DOI:
10.1103/PhysRevE.65.046103
PACS:
89.40.+k, 05.70.Fh, 45.70.Vn
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