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SmartSensor HD User Guide
This can happen with
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Buildings
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Signs
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Guard rails
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Sounding walls and more
Fixing occlusion problems
˿
Move the sensor higher on the pole (keeping it within the rec-
ommendations in the mounting guidelines table).
˿
Move the sensor to another spot on the freeway if possible,
away from obstructions.
˿
If there’s a very large barrier in the median, you could do the
following:
Use one sensor on either side of the road, pointing in (be
sure to give the two sensors a 70-ft./21.3-m lateral oset and
put them on dierent RF channels).
Put two sensors on the same pole in the middle of the
median, both pointing out (put them on dierent RF chan-
nels), but this would mean they are next to the barrier in the
median and that could cause multipath problems.
Fixing multipath problems
˿
Move the sensor if possible; make sure it is separated from
overhead signs, overpasses, tunnels, parallel walls, etc. A 30-ft.
(9.1-m) lateral separation would be ideal, but even just a few feet
can make a dierence.
˿
Adjust the sensor’s sensitivity thresholds in SmartSensor Man-
ager HD, as covered in chapter 7.
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