Transportation Research Record Journal of the Transportation Research Board · 1974 · 24 citations · 0 references
EngineeringCivil EngineeringPavement EngineeringTransportationTransportation EngineeringDensity AnalysisHighway PavementsRoad TransportTraffic EngineeringTraffic OperationsTraffic SafetyFlow-density RelationshipsMultilane Traffic FlowRoad Profile EstimationRoadway Performance MeasurementSensor ModelTraffic DensityTraffic Density AnalysisTraffic Monitoring Systems
A Kalman filtering methodology for the estimation of traffic densities on multilane roadways is tested by using aerial photography data. The method gives very satisfactory estimates even when the sensor separation is as great as 3,000 ft. A systematic procedure is given for designing and calibrating a density-measuring system for a roadway.