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6
PROCESS THE DATA
This statistical presentation software of the data coming from the display gives to the user a picture of
the traffic structure. Different user-friendly screens allow you to parameter the display and to present
the speed distribution, the count per threshold or also the speed itself.
WARNING
The I-SAFE is not an accurate counting device. Following traffic intensity and the chosen value for the
duration of the display, vehicles may be measured and recorded several times. In other
circumstances, a vehicle driving at short distance of another one will not be detected. The analysis of
the recorded information gives a good idea about speed behaviour, and a rough description of the
traffic structure during the measuring campaign.
6.1
L
OADING THE DATA FROM A
USB
STICK
The software allows you to read a data file by clicking on the “Read a data file” button
. The data file
can be a .TXT file or a .ISF file, depending on the type of speed sign you have.
Screenshot 18: reading a data file
The software will show the data in table format as shown in Screenshot 18.
