AN AUTOMATED HIGHWAY SYSTEM LINK LAYER CONTROLLER FOR TRAFFIC FLOW STABILIZATION

Document Type

Journal Article

Publication Date

1997

Subject Area

operations - traffic, infrastructure - vehicle, infrastructure - bus/tram lane

Keywords

Traffic models, Traffic flow, Stabilization, Soil strengthening, Soil stabilization, Soil stabilisation, Single lane traffic, Ground treatment, Electronic vehicle guidance, Drive by wire, AVCS, Automated highway guidance, Advanced vehicle control systems, Advanced vehicle control systems

Abstract

Controls for the link layer in the Automated Highway System (AHS) hierarchy proposed in the Partners for Advanced Transit and Highways (PATH) are developed. The link layer is modeled using vehicle conservation flow models. Desired traffic conditions on the highway are given by a pair of density and velocity profiles which are assumed to be consistent with the demand on, and the capability of, the highway system. The link layer control laws presented in this paper then stabilize the actual traffic condition to the desired values. Control laws are derived for three highway topologies: a single lane highway, a highway with multiple discrete lanes and a two-dimensional highway with an arbitrary flow pattern. The control laws obtained for each of the topologies is distributed and are suited for implementation in the lower levels of the AHS control hierarchy.

Comments

Transportation Research Part C Home Page: http://www.sciencedirect.com/science/journal/0968090X

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