Siemens BH17 7ER - Figure 13 - Special Purpose Loops

LOOP DETECTOR HANDBOOK
667/HE/20663/000 Issue 13 Page 29
Figure 13 - Special Purpose Loops
1.4 m – 15.0 m
1.2 m
(a) Call and Extend loops
Non-bicycle sensitive. Not approved for use on roads in UK.
1.4 m – 15.0 m
1.2 m
(b) Call and Extend loop
Non-bicycle sensitive. Not approved for use on roads in UK.
1.8 m – 3.0 m
4.8 m
(c) Queue loop