Estimation of Queue Lengths in Urban Road Networks

by Michael Cremer, Technical Univ of Hamburg-Harburg, Hamburg, Germany,
Tobias Henninger, Technical Univ of Hamburg-Harburg, Hamburg, Germany,

Document Type: Proceeding Paper

Part of: Pacific Rim TransTech Conference: Volume I: Advanced Technologies


In this paper we present a new scheme for the surveillance of traffic state on a link of an urban road network. It is shown that measurements of traffic counts and speed values from a single detector may produce reliable estimates if the detector is placed at an appropriate distance from the traffic signal. Traffic state estimation then is performed using the Extended Kalman Filter Which uses a dynamic model for link flows. The high of this scheme is underlined by some simulation results.

Subject Headings: Traffic models | Traffic surveillance | Kalman filters | Highways and roads | Filters | Urban areas | Traffic signals

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