Glossary

Glossary terms

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Shockwave
An imaginary line delineating a disruption in vehicle speeds.
Speed Harmonization
An ATM measure consisting of using an expert system to monitor data coming from the field-deployed sensors on a roadway and automatically adjusting speed limits when congestion thresholds are exceeded and congestion and queue formation are impending; Sign gantries that span the facility provide speed limits and additional information depending on the roadway conditions.