Rural Data Collection Technology - FHWA Operations - U.S. ...

Table 3 Candidate RTT TechnologiesTechnologySpotSpeedSegmentTravelTimeReal-timeTrackingSensorLocationCoverage PerSensor% VehiclesDetected/Matched†ImplementationCost†Nontraffic-infoFunctions†TrafficVolumesVehicleClassBluetooth detection XRoadside/above roadAll lanes Low Low LowToll tag reader XRoadside/above roadOne or morelanes**Low Med MedIn-pavementmagnetic detectorsX In pavement One lane High Med Low X XAutomatic licenseplate reader (ALPR)XRoadside/above roadOne or morelanes**Med Med Med X XMachine vision X X*Roadside/above roadOne or morelanes**High Med High X XConnected vehicle X X*Roadside/above road& in vehicleAll lanes ??? Low HighRadar, microwave,LIDARXRoadside/above roadOne or morelanes**High Med Med XInductive loops X X* In pavement One lane High Low Low X X*Crowdsourcing X None All lanes ??? Low LowCell phone signalmonitoringX None All lanes ??? Low Low* Possible depending upon capabilities of technology** Multiple lanes possible depending upon capabilities of technology and sensor placement† Can vary substantially depending on a variety of factors; estimates are approximate based on user experience‡ Other functions can include tolling, traffic law enforcement, unregistered vehicle detection, cooperative safety, etc.??? Unknown/no basis for assessmentRural Data Collection TechnologyFederal Highway Administration7