Image Sensing Systems RTMS Echo User Manual page 35

Chapter 3:
RTMS Echo User Guide
NOTE: There should be one person with a hand-held counter monitoring
each zone selected.
4. Click Start and immediately begin manually counting vehicles as they
cross the radar beam.
5. Continue counting until a minimum of 50 vehicles have been counted for
each selected zone.
6. Click Stop.
7. Enter the number(s) from the counter into the Manual Count column.
The difference between the Sensor Count and Manual Count in difference
and percentage of deviation is immediately calculated.
If the Sensor Count is greater than the Manual Count by 5% or more, this
could be caused by:
– "Splashing" (vehicles in one zone are shown as being detected in
an adjacent zone)
– Lane changing
– Reflections from fixed objects
If the Sensor Count is less than the Manual Count by 5% or more
(negative percentage), this could be caused by:
– Missed small vehicles
– Occlusions
– Incorrect aiming
8. Are any of the percentages over five percent (either plus or minus)?
You should make corrections before continuing.
See "Optimizing Volume Count Accuracy" on
page 4-10.
After adjustments have been made, repeat the
verification process.
9. To save the accumulated results of verification to a file in the sensor's
memory, click Save.
A download option appears.
10. To download the saved file to your computer, click Download. The file is
saved to your default folder as a CSV file.
©2019 Image Sensing Systems Inc.
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