The is the header element for the whole document to describe general informationThe agency who is sending this documentThe time this document was created/generatedThe total number of data entriesThe detector's IDThe state CDW numberThe detector's nameThe agency reporting the dataThe type of the detectorThe list of lane IDs that this zone coversThis the reference speed in this area. This is usually the speed limit of the road.When the measurements startedWhen the measurements endedThe occupancy of the area. This is a percentage showed in whole number (30.143 = 30.143%)The number of readings that were expecting during this time period based on the polling interval.The number of readings during this measurement time period.The number of reading during the measurement time period which passed all tests (the readings are 100% valid).valid - data is valid and usable; invalid - data is invalid and unusable; incomplete - data is incomplete and partially usable; no data - there is no data to use; unknown - status is unknown; idle - detector's last measurement was far in the pastThis element represents a location where an event is occurringA free text human readable description of the location which should be a quick way for a person to determine the locationThis is the district number where this detector is located.The county ID where the detector is located.The roadway ID where the detector is located.The state milepostThe number of lanes this detector covers.This represents the possible directions a right of way hasThis holds a value and the units of that valueThis represents a location in a single pointThis is what road where the detector isThis is the cross road where the detector isThis is the type of intersection where onAddress and atAddress crossThis represents an addressThese are the types of intersectionsTwo roads intersectingTwo roads intersecting at a traffic signalMore than two roads intersectingMore than two roads intersecting at a traffic signalThis is a roundabout or circleThis is an intersection of roads which form a square (similar to a roundabout)This is a series of entrance or exit ramps between two roadsThis is two roads crossing at different elevationsThese are the possible types of roadsThis is a Traffic Message Channel Code for a roadwayThis is a postal zip codeThis represents a specific right of wayThis is the route prefix such as I (interstate) or US (US highway)This is the route name which is typically a numberThis is the road's name which is typically a locally defined name of the routeThis is the route suffix (if applicable). It is not the direction.This is a decimal greater than or equal to 0These are the 50 states plus District of Columbia