User's Guide

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IX. ANALYSING THE DATA
1. RAIN AND/OR PARASITIC MEASURES FILTER
The IcomSoft TMS-SA is provided with an automatic detection module for false measurements,
mainly due to heavy rain in the "outgoing" direction.
The filter evaluates potential rain for a single campaign. All data measurements are sampled into
distinct time slots of one hour each. The volume of traffic during a time slot is computed for each day
individually. Interquartile methods are then used to determine heavy volume outliers, indicating
specific Day-time slot windows where it probably rained. Measurements corresponding to those time
windows are then eliminated by means of vehicle length. As a rule of thumb for a particular time slot,
one should record three (3) dry days of measurements for every rainy day.
2. DATA DISPLAY
Once the data loaded into the software (the data can be loaded from a data file or downloaded from
the radar), the software displays the data as shown in Screenshot 12
Screenshot 11.