Pavement Deflection Data Exchange: Technical Data Guide, Version 1.0Nondestructive deflection testing (NDT) devices have become integral tools in the evaluation and analysis of pavement facilities. Historically, the data produced by deflection devices have been stored in output files with the type, extent, and organization of collected data being left to the discretion of the individual equipment manufacturers. This document describes a device-independent universal pavement deflection data exchange (PDDX) specification that utilizes the data management concept of section blocks, similar to the software initialization file format used by many computer operating systems. The use of section blocks has proven to be an efficient and flexible method in the management of data and can be applied successfully to pavement deflection testing technology. |
Contents
Introduction | 1 |
Data Format Configuration | 9 |
Device Calibration | 22 |
Copyright | |
2 other sections not shown
Common terms and phrases
24-hour clock ASCII ASCII character center TestTemperatures converted to PDDX data collection Data Configuration date format Date Syntax DecimalSymbol deflection basin data Deflection Data Exchange deflection data file deflection file deflection measuring deflection sensors deflection testing DeflectionSensorXAxisDistances DeflectionUnits Deflectometer delimiter symbol Device Calibration Device Information DeviceDesignationName DeviceLoadType DropData2 DropData3 DropDatal Dynatest FWD Edition Edition 20 entry FacilityName Fahrenheit falling weight deflectometers file converted Geophones HDMI Hertz Hheader impulse Device Configuration INTERSTATE 77 Interstate 95 KUAB literal string load and deflections load cell Load Deflection Devices load frequency load plate LoadPlateRadius LoadUnits Location Identification NumberOfDeflectionSensors NumberOfDrops NumberOfTemperatureSensors NumberOfTestLocations Operations Information OperatorName output format Pavement Deflection Data PDDX file format PDDX format PDDXVersionNumber Phonix FWD pound-force relative calibration Road Rater rolling wheel Sample File SectionName seismometers serial number shown in figure SiteName steady-state vibratory string Description temperature TemperatureSensorUse TemperatureUnits Test Location TestComment TestLane TestLocation TestLocationUnits TestTime TestType Thomas Kinsella Units Syntax