3
Determine the height and mount the sensor
4
Align sensor to roadway
Use the following guidelines to determine the best mounting height:
˽
The sensor should be placed at a height of approximately 20 ft., give or take 5 ft. (6.1 ± 1.5 m).
˽
The maximum recommended mounting height is 35 ft. (10.7 m). The minimum recommended mount-
ing height is 15 ft. (4.6 m).
˽
Take into consideration the sensor’s footprint, which reaches 140 ft. (42.7 m) from the sensor. Place the
sensor so that the footprint covers all the areas of interest.
˽
The mounting position should have a clear view of the detection area. Poles or other objects should not
block the view of the detection area.
˽
Placing the sensor higher will result in less occlusion. Placing it lower could result in more occlusion.
However, if the nearest detection area is less than about 20 ft. (6.1 m) away, the sensor may perform bet-
ter with a lower mounting position.
To attach the mount bracket to the pole:
1
Insert the stainless steel straps through the slots in the mount bracket.
2
Position the mount on the pole so the mount head points
toward the lanes of interest at a 45° angle.
3
Tighten the strap screws.
To securely fasten the sensor to the mount bracket:
1
Align the bolts on the sensor’s backplate with the holes in the
mount bracket. The eight-pin connector receptacle on the
bottom of the sensor should be pointing towards the ground.
2
Place the lock washers onto the bolts after the bolts are in the
mount bracket holes.
3
Thread on the nuts and tighten.
The sensor’s field of view fans out 45° to both sides. You will usually want to
position the radar beam so that its 90° footprint covers all lanes at the railroad
intersection.
1
Adjust the side-to-side angle so the front edge of the field of view pro-
vides a view downstream of the rail island.
2
Tilt the sensor down to aim it at the center of the lanes of interest.
3
If necessary, rotate the sensor so that the bottom edge of the sensor is
parallel with the roadway. This is necessary where the rail island ap-
proach has a significant grade.
100 ft
100 ft
