GENERAL NOTES
SUMMARY OF XSF FLAGS
(Communications Operation of XSF flags is required)
XSF1 - Allows the late introduction of P1 in AØ (Master).
XSF3 - Auto introduces P3 in CØ (All modes).
SIGNAL GROUP OPERATION
Signal Group 7
1.             SG7 is conditional on P3 demand is Bf.
2.             SG7 closes down at the start of Af yellow if going ACf or ABf with a demand for P3.
3.             SG7 closes down at the start of Bf yellow if going BCf.
4.             SG7 uses Cf minimum green for its minimum green.
5.             SG7 can introduce in Bf after P3 solid don’t walk until the start of Bf ECO.
6.             Expire Bf ECO when SG7 minimum green expires.
7.             Cf ECO is used to provide 3 seconds of solid don’t walk after P3 clearance.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls AØ. 
P1 can introduce at the start of AØ.
In Master P1 can introduce at any time in AØ while XSF1 is set.
Pedestrian 2
P2 calls BØ.
P2 can introduce at the start of BØ.
Pedestrian 3
P3 calls CØ.
P3 can introduce at the start of BØ and CØ after SG7 all red.
3 seconds of solid don’t walk is provided after P3 clearance.
When XSF3 is set, P3 auto introduces at the start of CØ.
DETECTOR OPERATION
General
Clear vehicle demands during associated phase green and yellow.