2. SG5
goes red with SG1 in AØ and remains red through BØ.
3. SG5
closes down at the end of CØ green, remains red through AØ late start, then
goes ‘blank’ at the start of AØ minimum green.
4. If
going BØ → AØ, with a demand for P2, hold SG5 red for the duration of
Timer 1 (Special Purpose Timesetting No. 9). Timer 1 starts timing at the
start of P2 walk. When Timer 1 expires, SG5 red is switched off.
5. If
going CØ → AØ with a demand for P2, SG5 goes red at the start of CØ all
red period and is held red for the duration of Timer 1 (Special Purpose
Timesetting No. 9). Timer 1 starts timing at the start of P2 walk. When Timer
1 expires, SG5 red is switched off.
6. AØ
ECO is used to guarantee SG5 minimum ‘blank’ period. Timer 2 (Special Purpose
Timesetting No. 10) starts timing at the start of SG5 ‘blank’ period. When
Timer 2 expires, expire AØ ECO.
7. If
in AØ clear demands for CØ.
Signal
Group 7
1. Late
start SG7 in CØ.
PEDESTRIAN
GROUP OPERATION
Pedestrian 1
P1
calls AØ.
P1
can introduce at anytime in CØ, and during AØ late start, and can overlap CØ®AØ.
Pedestrian 2
P2
calls AØ.
P2
calls BØ if the controller is resting in AØ.
P2
can introduce during AØ late start
Pedestrian 3
P3
calls BØ.
P3
can introduce at the start of BØ.
Pedestrian 4
P4
calls BØ.
P4
can introduce at the start of BØ.
DETECTOR
OPERATION
General
Clear
vehicle demands during the associated phase green & yellow.
Detectors 3
Detector
3 places non-locking calls for CØ when its presence timer expires, and
extends CØ.
Detectors 7
Clear
demands for BØ from detector 7 during SG3 and SG7 green and yellow.