Target Completion Date: March 31, 2009 Safety, Operations, and Traffic Engineering
The purpose of this research is to develop and model potential solutions to alleviate recurring congestion in Northern Virginia on I-95 and I-66. Techniques such as dynamic ramp metering, variable speed limits, and minor geometric improvements will be investigated for their potential to mitigate congestion. Data will be examined to determine how and why the traffic flow breaks down and the process by which it returns to normal. The exact speed, time of day, volume, density and geometric characteristics at the critical points will be recorded. Conditions immediately prior to flow breakdown will be examined in an effort to identify predictors for future breakdowns and triggers for implementation of countermeasures. Modeling will be used to quantify the potential benefits of any proposed countermeasures.
Last updated: July 5, 2023
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