Title: Traffic-Responsive Ramp Metering to Increase Merge Bottleneck Capacity
Abstract: Experiments show that fully automated, traffic-responsive ramp metering can generate higher capacities at an isolated freeway merge bottleneck. By suitably altering the on-ramp’s metering rate in response to freeway occupancies measured by nearby detectors, the endogenous traffic conditions that impede merge outflow were mitigated and higher capacities were restored to the merge. The experiments also indicate that to achieve these capacity gains requires careful calibration of the metering logic. That these findings are, in fact, the first of their kind is carefully explained. The paper further explain how these findings, if followed-up with certain additional experiments, may lead to wide-scale deployment of freeway traffic control schemes that increase merge capacity.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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