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SmartSensor HD User Guide
This can happen with
˿
Buildings
˿
Signs
˿
Guard rails
˿
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 offset and
put them on different RF channels).
̀
Put two sensors on the same pole in the middle of the
median, both pointing out (put them on different 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 difference.
˿
Adjust the sensor’s sensitivity thresholds in SmartSensor Man-
ager HD, as covered in chapter 7.
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