Dynamic Sensor Data

Contains dynamic sensor responses, including peak values and full dynamic records. Fields are defined in the following list. The following figure illustrates properties of the sensor record as given in the Dynamic_data table.

Definition of Fields in Table Dynamic_data

 

TrafficID

Unique number assigned to identify each vehicle passing event.  The numbers from 1 to 12540 refer to the north side trafficking, and numbers ranging from 12541 to 54012 refer to south side trafficking.  North side detail includes 1 to 12540 for LFC1NW, LFC1NE, LFC2NW, LFC2NE, LFC3N, and LFC4N.  Further detail of the south side includes 12541 to 32430 for LFC3S and LFC4S; 32431 to 41076 for LFC2SW and LFC2SE; 41077 to 54012 for LFC1SW and LFC1SE.

SensorID

Number assigned to an individual sensor in the 'SPU' table.

EventNo

Number assigned to an event in the “Traffic” table. An event is defined as a vehicle movement with loads.

StartTime

Time after the start of an event corresponding to the first data sample added to the SensorRecord (seconds).

StartVehiclePosition

The vehicle position corresponding to time StartTime (feet).

EndTime

Time after the start of an event corresponding to the last data sample added to the SensorRecord (seconds).

EndVehiclePosition

The vehicle position corresponding to time EndTime (feet).

OffsetLeft

Average value of the sensor reading prior to the initial load response (sensor units).

OffsetRight

Average value of the sensor reading following the load response (sensor units).

FilterFreq

Frequency of the applied data filter (Hz).

Peak1Time

Time after the start of an event corresponding to Peak 1 (seconds). See below for information on how Peak1 and Peak2 are determined.

Peak1

Value of Peak 1 relative to OffsetRight (sensor units). See below for information on how Peak1 and Peak2 are determined.

Peak2Time

Time after the start of an event corresponding to Peak 2 (seconds). See below for information on how Peak1 and Peak2 are determined.

Peak2

Value of Peak 2 relative to OffsetRight (sensor units). See below for information on how Peak1 and Peak2 are determined.

Peak3Time

Time after the start of an event corresponding to Peak 3 (seconds). See below for information on how Peak1 and Peak2 are determined.

Peak3

Value of Peak 3 relative to OffsetRight (sensor units). See below for information on how Peak1 and Peak2 are determined.

Peak4Time

Time after the start of an event corresponding to Peak 4 (seconds). See below for information on how Peak1 and Peak2 are determined.

Peak4

Value of Peak 4 relative to OffsetRight (sensor units). See below for information on how Peak1 and Peak2 are determined.

Peak5Time

Time after the start of an event corresponding to Peak 5 (seconds). See below for information on how Peak1 and Peak2 are determined.

Peak5

Value of Peak 5 relative to OffsetRight (sensor units). See below for information on how Peak1 and Peak2 are determined.

SamplePeriod

Sampling rate for the signal (seconds). Note: The sampling rate for all CC-5 dynamic data records is 0.05s.

SampleCount

Number of samples in a record.

SensorRecord

Full dynamic sensor data corresponding to an event, consisting of a string of SampleCount values delineated by commas (sensor units).

SpuRefTime

Date/Time when the sensor record was recorded by the signal processing unit (SPU). Date is recorded as MM/DD/YYYY. Time is local time (New Jersey, USA).

 

 

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