GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF5 - Selects Special Maximum for SG5 in Df (Special Purpose Timesetting No.16) (All modes).
XSF6 - Selects Special Maximum for SG6 in Df (Special Purpose Timesetting No.17) (All modes).
GENERAL OPERATION
1. If in Cf clear demand for Bf.
SIGNAL GROUP OPERATION
Signal Group 5
1. SG5 is controlled by Special Movement Timesetting No. 1 within Df. Df All-Red timesetting is 
    substituted for Special Movement Timesetting No. 1.
2. XSF5 flag is used to set the maximum time for SG5 in Df. This time is accessible in Special Purpose
    Timesetting No. 16. SG5 is forced off after this maximum extension time.
Signal Group 6
1. SG6 is controlled by Special Movement Timesetting No. 2 within Df. Df All-Red timesetting is 
    substituted for Special Movement Timesetting No. 2.
2. XSF6 flag is used to set the maximum time for SG6 in Df. This time is accessible in Special Purpose
    Timesetting No. 17. SG6 is forced off after this maximum extension time.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls Af.
P1 can introduce at anytime during D2f or at the start of Af and can overlap D2Af.
Substitute Special Purpose Timesetting No. 9 for P1 walk time when Y+ (Flexi) is set.
Pedestrian 2
P2 calls Af.
P2 can introduce at anytime during D3f or at the start of Af and can overlap D3Af.
Substitute Special Purpose Timesetting No. 10 for P2 walk time when Y+ (Flexi) is set.
Pedestrian 3
P3 calls Cf.
P3 can introduce at anytime during Bf or at the start of Cf and can overlap BCf.
Substitute Special Purpose Timesetting No. 11 for P3 walk time when Y+ (Flexi) is set.
Pedestrian 4
P4 calls Cf.
P4 can only introduce at the start of Cf.
Substitute Special Purpose Timesetting No. 12 for P4 walk time when Y+ (Flexi) is set.
DETECTOR OPERATION
General
1. Clear vehicle demands during associated phase green and yellow.
Detector 3
1. Clear demands for Df from detector 3 during SG5 green and yellow.
2. Detector 3 calls D1f if going ADf.