GENERAL NOTES
SUMMARY OF XSF FLAGS
(Communications Operation of XSF flags is required)
XSF1 - Allows for late introduction of P1 in AØ (Masterlink only).
XSF2 - Allows for late introduction of P2 in AØ (Masterlink only).
XSF3 - Allows for automatic introduction of P1 & P2.
XSF4 - Allows for automatic introduction of P3 & P4.
XSF5 - Selects special maximum for SG5 in EØ via Special Purpose Timesetting No. 9.
XSF6 - Selects special maximum for SG6 in EØ via Special Purpose Timesetting No. 10.
XSF7 - Not use.
XSF8 - Not use.
XSF9 - Allows detector 19 to extend CØ.
GENERAL OPERATION
·        Use AØ yellow for EØ yellow if transitioning from E2Ø or E3Ø to phases other than AØ.
·        Use BØ yellow for DØ yellow if transitioning from DØ -> CØ.
·        Use CØ yellow for BØ yellow if transitioning from BØ to phases other than CØ.
·        Use BØ special all red if transitioning from BØ -> EØ or BØ -> AØ.
·        Use DØ special all red if transitioning from DØ -> CØ.
SIGNAL GROUP OPERATION
SIGNAL GROUP 5
SG5 is controlled by Special Movement Timer No.1 within EØ. EØ All Red Timesetting is substituted for Special Movement Time No. 1.
XSF5 is used to set the maximum time for SG5 in EØ.  The maximum time is accessible in Special Purpose Timesetting No. 9. SG5 will be forced off after a period equal to the EØ minimum green plus this special maximum.
SIGNAL GROUP 6
SG6 is controlled by Special Movement Timer No.2 within EØ. EØ All Red Timesetting is substituted for Special Movement Time No. 2.
XSF6 is used to set the maximum time for SG6 in EØ.  The maximum time is accessible in Special Purpose Timesetting No. 10. SG6 will be forced off after a period equal to the EØ minimum green plus this special maximum.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
·         P1 calls AØ.
·         P1 can introduce anytime in E2Ø & at the start of AØ and can overlap from E2Ø -> AØ.
·         P1 can introduce anytime in AØ if XSF1 is set (Masterlink only).
·         P1 auto introduces at the start of SG1 green if XSF3 is set.
Pedestrian 2
·         P2 calls AØ.
P2 can introduce anytime in E3Ø & at the start of AØ and can overlap from E3Ø -> AØ.
·         P2 can introduce anytime in AØ if XSF2 is set (Masterlink only).
·         P2 auto introduces at the start of SG2 green if XSF3 is set.
Pedestrian 3
·         P3 calls CØ.
P3 can introduce anytime in BØ & at the start of CØ and can overlap from BØ -> CØ.
·         P3 auto introduces at the start of SG3 green if XSF4 is set.
Pedestrian 4
·         P4 calls CØ.
P4 can introduce at the start of CØ and can clearance overlap from CØ -> DØ.
·         P4 auto introduces at the start of SG4 green if XSF4 is set.
DETECTOR OPERATION
Detector 19
Detector 19 extends CØ when XSF9 is set.
OPERATION OF ADVANCED WARNING SIGN
The Advance Warning Sign is controlled by Wait State 7 (WS7) and Special Output 1 (SO1).
Wait State 7 or Special Output 1 controls the operation of two flashing “Prepare to Stop” signs.
Wait State 7 and Special Output 1 are switched on at the start of AØ ECO if going AØ->BØ,AØ->CØ, AØ-> DØ, AØ->E1Ø or AØ->E3Ø.
Wait State 7 and Special Output 1 stay on until SG1 goes green in AØ or E2Ø.
Calculation of Extra Time Period
Extra Time = Time to travel from Sign to Stopline
-                      Time to travel from Nominal Stopping Distance to the Stopline
+ Reaction Time (including time to travel the viewing distance)
= { 132 / [(60 x 1000) / 3600] }  – 4 (yellow time) +2
= 5.9 seconds
Use 6 seconds