between the two values as below.
Table 2.1 Radar Installation Reference of Declination Angle (Monitoring the Going Lane only)
Table 2.2 Radar Installation Reference of Declination Angle (Monitoring the Coming Lane only)
Table 2.3 Radar Installation Reference of Declination Angle (Monitoring both of Coming and Going Lane)
In the latest upper computer software, the reference value of the radar installation declination angle
will be inputted automatically after the triggering distance and installation height are inputted, dispensed
with the table check and calculation. As shown in figure 2.4
Figure 2.4: Calculate the reference installation declination angle according to the installation height and
triggering distance at once
In addition, in order to enlarge the application scopes of monitoring and lower the standards of
installation, the actual installation position of the radar could deviate from the center of the overall lanes
and the furthest distance could be 3m away from the outermost lane.
As shown in figure 2.5, the radar could be installed on any position deviated from the center of the
20m
24m
28m
32m
36m
5m
19
°
16
°
14
°
11
°
9
°
6m
24
°
20
°
18
°
15
°
13
°
7m
28
°
24
°
21
°
18
°
16
°
8m
30
°
26
°
23
°
20
°
18
°
20m
24m
28m
32m
36m
5m
13
°
10.5
°
8.5
°
7.5
°
7
°
6m
15
°
12.5
°
10.5
°
9
°
8.5
°
7m
16.5
°
14
°
12
°
10.5
°
9.5
°
8m
18
°
15.5
°
14.5
°
11.5
°
10.5
°
20m
24m
28m
32m
36m
5m
16
°
13.5
°
11.5
°
9.5
°
8
°
6m
19.5
°
16.5
°
14.5
°
12
°
11
°
7m
22.5
°
19
°
17
°
14.5
°
13
°
8m
24
°
21
°
19
°
16
°
14
°
angle
θ
height
Trigger distance
angle
θ
height
height
angle
θ
Triggering distance
Triggering distance