Siemens BH17 7ER - Figure 8 - Rectangular SDE;SA Loops; Figure 9 - Rectangular Turning Loops

LOOP DETECTOR HANDBOOK
667/HE/20663/000 Issue 13 Page 26
Figure 8 - Rectangular SDE/SA Loops
Refer also to section 2.3.8 and Figure 10 for SDE/SA loop options.
Direction of
travel
x
Road
centre
1.2 m – 3.6 m
1 m
Distance from
stop line
0.3 m
1 m
1.8 m
x = Refer to note in section 2.3.8 for dimensions.
Note that on dual carriageways the loops should be 0.3 metres from the central
reservation.
Distance from stop line – See Figure 22.
All loops to be 3 turns.
Figure 9 - Rectangular Turning Loops
Length 1.8 m – 3.6 m
Width 1.8 m – 7.6 m
Maximum of 150 m
feeder cable