GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF1 - Allows late introduction of P1 in AØ (only during SG5 full control, Masterlink only).
XSF2 - Allows auto introduction of P1 at the start of SG2 green.
XSF3 - Allows permanent demand of P2.
XSF4 - Allows Detector 6 to extend CØ & DØ.
XSF5 - Selects special maximum for SG5 & SG8 in DØ via Special Purpose Timesetting No. 12.
XSF6 - Selects special maximum for SG6 in DØ via Special Purpose Timesetting No. 13.
XSF7 - Select Special Purpose Times 24 & 25 for Delay Timers T1 & T2 respectively.
XSF8 - Select Special Purpose Times 26 & 27 for Delay Timers T1 & T2 respectively.
XSF9 - Inhibit operation of dummy SG9 and queue detector 10 functions.
SUMMARY OF MSS FLAGS
MSS10 - Set when the presence time for detector 10 expires.
GENERAL OPERATION
·         If in AØ, clear demands for DØ when SG5 & SG6 are partially controlled (06:30 -> 09:30, 15:30 -> 18:30 Monday -> Friday). If transitioning from AØ -> DØ (due to Master data), run D1Ø when SG5 & SG6 are partially controlled.
·         Late start SG7 in BØ when transitioning from AØ -> BØ while SG5 is partially controlled (06:30 -> 09:30, 15:30 -> 18:30 Monday -> Friday).  SG7 introduce at the start of BØ when transitioning from CØ -> BØ or DØ -> BØ. SG7 introduce at the start of BØ when SG5 is full controlled.
·         Expire AØ late start period and AØ ECO period when both SG5 & SG6 are fully controlled.
·         Substitute AØ yellow for DØ yellow when transitioning from D2Ø or D3Ø to phases other AØ.
SIGNAL GROUP OPERATION
SIGNAL GROUP 5
·         SG5 is controlled by Special Movement Timer No. 1 within DØ.  DØ all red timesetting is substituted for Special Movement Timer 1.
·         XSF5 is used to set the maximum time for SG5 & SG8 in DØ.  This time is accessible in Special Purpose Timesetting No.12.  SG5 & SG8 will be forced off after a period equal to the DØ minimum green time plus this maximum time.
SIGNAL GROUP 6
·         SG6 is controlled by Special Movement Timer No. 2 within DØ.  DØ all red timesetting is substituted for Special Movement Timer 2.
·         XSF6 is used to set the maximum timer for SG6 in DØ.  This time is accessible in Special Purpose Timesetting No. 13.  SG6 will be forced off after a period equal to the DØ minimum green time plus this maximum time.
SIGNAL GROUP 8
·         SG8 is controlled by Special Movement Timer No. 3 within DØ.  DØ special all red timesetting is substituted for Special Movement Timer 3.
RED ARROW DROP OFF OPERATION
·         SG5 and SG6 operate as fully controlled right turns during the following periods:
o    00:00 -> 06:30 Monday -> Friday
o    09:30 -> 15:30 Monday -> Friday
o    18:30 -> 24:00 Monday -> Friday
o    00:00 -> 24:00 Saturday & Sunday
·         SG5 and SG6 operate as partially controlled right turns with red arrow drop-off during the following periods:
o    06:30 -> 09:30 Monday -> Friday
o    15:30 -> 18:30 Monday -> Friday
SIGNAL GROUP 5 – Fully Controlled Right Turn
·         Place a demand (once only) for SG5 at 09:30 and 18:30 Monday -> Friday.
·         SG5 remains red in AØ.
·         Detector 3 places locking calls for DØ and extends DØ.
SIGNAL GROUP 5 – Partially Controlled Right Turn (Red Arrow Drop Off Operation)
·         SG5 operates green/yellow/red in DØ and can be switched to blank during AØ.
·         If there is no demand for P1 in AØ, SG5 red will be switched off at the end of AØ late start period.
·         If P1 runs in AØ, SG5 is held red in AØ for the duration of Timer 1 (which starts timing at the start of P1 walk using Special Purpose Timesetting 9).  When Timer 1 expires, SG5 red is switched off in AØ if it is later than AØ late start period.
·         AØ ECO is used to guarantee SG5 minimum blank period in AØ.  Timer 2 (Special Purpose Timesetting 10) start timing at the beginning of SG5 blank period.  When Timer 2 expires, expire AØ ECO period from this approach.
·         SG5 red will remain red in DØ if SG5 gaps.
·         SG5 goes red at the start of SG1 red in AØ.
·         SG5 is held red in BØ and CØ.
·         Detector 3 places locking calls for AØ and places non-locking calls for DØ when the presence time for detector 3 expires.
·         Detector 3 extends DØ.
SIGNAL GROUP 6 – Fully Controlled Right Turn
·         Place a demand (once only) for SG6 at 09:30 and 18:30 Monday -> Friday.
·         SG6 remains red in AØ.
·         Detector 5 places locking calls for DØ and extends DØ.
SIGNAL GROUP 6 – Partially Controlled Right Turn (Red Arrow Drop Off Operation)
·         SG6 operates green/yellow/red in DØ and can be switched to blank during AØ.
·         SG6 red will be switched off at the end of AØ late start period.
·         AØ ECO is used to guarantee SG6 minimum blank period in AØ.  Timer 3 (Special Purpose Timesetting 11) start timing at the beginning of SG6 blank period.  When Timer 3 expires, expire AØ ECO period from this approach.
·         SG6 red will remain red in DØ if SG6 gaps.
·         SG6 goes red at the start of SG2 red in AØ.
·         SG6 is held red in BØ and CØ.
·         Detector 5 places locking calls for AØ and places non-locking calls for DØ when the presence time for detector 5 expires.
·         Detector 5 extends DØ.
OPERATION OF DUMMY SIGNAL GROUP 9
1.        The introduction of SG9 is determined by delay timers, T1 & T2.
2.        T1 starts timing at the start of SG3 green.
3.        T2 starts timing at the start of SG3 yellow.
4.        SG9 goes green when T1 expires (Special Purpose Timesettings No. 22, 24 & 26 subject to XSF flags).
5.        SG9 goes yellow when T2 expires (Special Purpose Timesettings No. 23, 25 & 27 subject to XSF flags).
6.        Use Yellow and All-Red of running phase for SG9.
7.        SG9 will remain red when XSF9 is set
The degree of saturation of Detector 10 during SG9 green can be used to push the percentage of CØ in Masterlink.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls AØ.
P1 can introduce at anytime during D3Ø and at the start of AØ and can overlap from D3Ø -> AØ.
P1 can introduce anytime during AØ while XSF1 is set (Masterlink only and when SG5 is fully controlled).
P1 auto introduces at the start of SG2 when XSF2 is set (all modes).
Pedestrian 2
P2 calls CØ.
P2 can introduce at the start of CØ.
P2 is permanently demanded when XSF3 is set.
DETECTOR OPERATION
Clear vehicle demands during associated phase green and yellow.
Detector 6
Detector 6 extends CØ & DØ when its presence timer expires and if XSF4 set.
If Detector 6 alarms, ignore functions of Detector 6 when XSF4 is set.
Detector 10
Detector 10 is a queue loop.
Reset presence timers for detector 10 when T1 expires, and then:
When presence time for detector 10 expires (when SG9 is green), set MSS10.  MSS10 will be set for the duration of detector 10 being occupied while SG9 is green.
If detectors 10 alarms, then clear the MSS10 flags and inhibit detector from extending CØ.
Inhibit detector 10 from carrying above if XSF9 is set.