GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF1 - Allows late introduction of P1 in AØ (Masterlink).
XSF2 - Allows late introduction of P2 in AØ (Masterlink).
XSF3 - Allows auto introduction of P1 at the start of SG1.
XSF4 - Allows auto introduction of P2 at the start of SG2.
XSF5 - Select special maximum for SG5 & SG14 in DØ via Special Purpose Timesetting No. 9.
XSF6 - Select special maximum for SG6 & SG13 in DØ via Special Purpose Timesetting No. 10.
XSF7 - Select special maximum for SG7 in BØ via Special Purpose Timesetting No. 11.
XSF8 - Select special maximum for SG8 in BØ via Special Purpose Timesetting No. 12.
XSF9 - Calls EØ to assist fire trucks to travel past this intersection as soon as possible.
SUMMARY OF MSS FLAGS
MSS1 - Set when EØ is demanded – can be used to force this site to Isolated operation.
MSS2 - Set for the duration of EØ green (can be used to monitor frequency and duration of EØ).
MSS3 - For monitoring trucks from the south approach of this intersection.
MSS4 - For monitoring trucks from the north approach of this intersection.
GENERAL OPERATION
Clear demands during associated phase green and yellow.
REVn. – first scan after start-up demands BØ, CØ and DØ.
Use CØ Yellow for BØ Yellow if transitioning from B2Ø or B3Ø -> AØ, DØ or EØ.
Use AØ Yellow for DØ Yellow if transitioning from D2Ø or D3Ø -> EØ.
BØ ECO is used to guarantee SG4 minimum green in B3Ø when transitioning from B3Ø -> EØ. Expire BØ ECO period if SG4 minimum green has expired via Special Purpose Timesetting No. 22. 
DØ ECO is used to guarantee SG1 or SG2 minimum green in D2Ø or D3Ø when transitioning from D2Ø -> EØ or D3Ø -> EØ. Expire DØ ECO period if SG1 or SG2 minimum green has expired via Special Purpose Timesetting No. 21. 
If in B2Ø with P3 running and EØ is demanded: 
Allow SG3 and SG7 to remain green as they are permitted to overlap from B2Ø to EØ;
Close down P3 as described in “PHASE OPERATION FOR EØ (EMERGENCY PHASE)” and allow SG13 to subsequently go blank upon expiry of Timer 5;
SG13 will go from blank to green when EØ starts.
If in B2Ø without P3 running and EØ is demanded: 
Allow SG3 and SG7 to remain green as they are permitted to overlap from B2Ø to EØ;
Allow SG13 to go blank upon expiry of Timer 7;
SG13 will go from blank to green when EØ starts.
If in CØ with P3 and/or P4 running and EØ is demanded: 
Allow SG3 to remain green as it is permitted to overlap from CØ to EØ;
Close down P3 and/or P4 as described in “PHASE OPERATION FOR EØ (EMERGENCY PHASE)” and allow SG13 to subsequently go blank upon expiry of Timer 5;
SG13 will go from blank to green when EØ starts.
If in CØ without P3 and/or P4 running and EØ is demanded: 
Allow SG3 to remain green as it is permitted to overlap from CØ to EØ;
Allow SG13 to go blank upon expiry of Timer 7;
SG13 will go from blank to green when EØ starts. 
If in D1Ø or D3Ø and EØ is demanded, allow SG13 to remain green as it is permitted to overlap from D1Ø or D3Ø to EØ.
SIGNAL GROUP OPERATION
SIGNAL GROUP 5
SG5 is controlled by a Special Movement Timer No. 1 within DØ. DØ All Red Timesetting is substituted for Special Movement Timesetting No. 1.
XSF5 is used to set the maximum time for SG5 & SG14 in DØ. The maximum time is accessible in Special Purpose Timesetting No. 9. When XSF5 is set, SG5 & SG14 may run for a green period equal to the DØ minimum green plus the time stored in Special Purpose Timesetting No. 9.
SIGNAL GROUP 6
SG6 is controlled by a Special Movement Timer No. 2 within DØ. DØ All Red Timesetting is substituted for Special Movement Timesetting No. 2.
XSF6 is used to set the maximum time for SG6 & SG13 in DØ. The maximum time is accessible in Special Purpose Timesetting No. 10. When XSF6 is set, SG6 & SG13 may run for a green period equal to the DØ minimum green plus the time stored in Special Purpose Timesetting No. 10.
Signal Group 7
SG7 is controlled by Special Movement Timer No. 3 within BØ. BØ All Red Timesetting is substituted for Special Movement Timesetting No. 3.
The XSF7 flag is used to set special maximum time for SG7 in BØ. This time is accessible in Special Purpose Timesetting No. 11. SG7 will be forced off after a period equal to the BØ minimum green plus this special maximum.
Signal Group 8
SG8 is controlled by Special Movement Timer No. 4 within BØ. BØ All Red Timesetting is substituted for Special Movement Timesetting No. 4.
The XSF8 flag is used to set special maximum time for SG8 in BØ. This time is accessible in Special Purpose Timesetting No. 12. SG8 will be forced off after a period equal to the BØ minimum green plus this special maximum.
SIGNAL GROUP 13
SG13 is controlled by a Special Movement Timer No. 5 within DØ. DØ All Red Timesetting is substituted for Special Movement Timesetting No. 5.
(Refer also to separate notes on Page 4/3 concerning conditional operation of SG13)
SIGNAL GROUP 14
·         SG14 is controlled by a Special Movement Timer No. 6 within DØ. DØ All Red Timesetting is substituted for Special Movement Timesetting No. 6.
(Refer also to separate notes on Page 4/4 concerning conditional operation of SG14)
SPECIAL OPERATION OF SIGNAL GROUP 13
Signal Group 13 is a 3-aspect (green / yellow / red) partially controlled left turn (conditional red) in B2Ø or CØ at all times, and remains red throughout AØ, B1Ø, B3Ø and D2Ø.
·         SG13 operates green / yellow / red in D1Ø & D3Ø and can be switched to “blank” during B2Ø or CØ as described below:
·         When SG3 switches green, Timer 7 will be started using the value specified in Special Purpose Timesetting No. 29. SG13 will be held red while Timer 7 is timing.
** Do not increase Special Purpose Timesetting No. 29 beyond the value of CØ Minimum Green timesetting.
·         If P3 has not been demanded upon expiry of Timer 7, then SG13 red will be switched to blank.
·         If P3 is demanded and introduces with SG3 green (while Timer 7 is timing), then SG13 will continue to be held red in B2Ø or CØ while Timer 5 is timing. Timer 5 starts timing at the start of P3 Walk using Special Purpose Timesetting No. 27. When Timer 5 expires, SG13 red will be switched to blank in B2Ø or CØ.
·         CØ minimum green is used to force off SG13 red in B2Ø or CØ when P3 runs. At the end of CØ late start period or at the start of CØ minimum green, both Timer 5 and Timer 7 will be expired from this approach if they are still timing. 
** Do not alter CØ late start period.
·         If transitioning from CØ to AØ or D2Ø, SG13 will be switched to red at the start of SG3 Red.
·         If transitioning from B2Ø to CØ, SG13 will remain blank during B2Ø Red and into CØ if it has blanked out earlier.
·         If transitioning from B2Ø to D1Ø or D3Ø, SG13 will remain blank during B2Ø Red before turning green in D1Ø or D3Ø if SG13 has blanked out earlier.
·         If going from CØ to D1Ø or D3Ø, SG13 will remain blank during CØ Red before turning green in D1Ø or D3Ø.
·         If transitioning from AØ, B1Ø, B3Ø or D2Ø to EØ, SG13 will be switched to green at the start of EØ.
·         If transitioning from B2Ø or CØ to EØ, SG13 will be switched to green at the start of EØ.
·         If transitioning from D1Ø or D3Ø to EØ, SG13 will be held green and will overlap into EØ.
·         If P3 operates in CØ, SG13 will be forced to blank at the end CØ minimum green if it has not blanked earlier.
SPECIAL OPERATION OF SIGNAL GROUP 14
Signal Group 14 is a 3-aspect (green / yellow / red) partially controlled left turn (conditional red) in B3Ø or CØ at all times, and remains red throughout AØ, B1Ø, B2Ø, D3Ø and EØ.
·         SG14 operates green / yellow / red in D1Ø & D2Ø and can be switched to “blank” during B3Ø or CØ as described below:
·         When SG4 switches green, Timer 8 will be started using the value specified in Special Purpose Timesetting No. 30. SG14 will be held red while Timer 8 is timing.
** Do not increase Special Purpose Timesetting No. 30 beyond the value of CØ Minimum Green timesetting.
·         If P4 has not been demanded upon expiry of Timer 8, then SG14 red will be switched to blank.
·         If P4 is demanded and introduces with SG4 green (while Timer 8 is timing), then SG14 will continue to be held red in B3Ø or CØ while Timer 6 is timing. Timer 6 starts timing at the start of P4 Walk using Special Purpose Timesetting No. 28. When Timer 6 expires, SG14 red will be switched to blank in B3Ø or CØ.
·         CØ minimum green is used to force off SG14 red in B3Ø or CØ when P4 runs. At the end of CØ late start or at the start of CØ minimum green, both  Timer 6 and timer 8 will be expired from this approach if they are still timing.    
** Do not alter CØ late start period.
·         If transitioning from CØ to AØ or D3Ø, SG14 will be switched to red at the start of SG4 Red.
·         If transitioning from B3Ø to CØ, SG14 will remain blank during B3Ø Red and into CØ if it has blanked out earlier.
·         If transitioning from B3Ø to D1Ø or D2Ø, SG14 will remain blank during B3Ø Red before turning green in D1Ø or D2Ø if SG14 blanked out earlier.
·         If going from AØ, B1Ø, B2Ø or D3Ø to EØ, Signal Group 14 will remain red.
·         If going from B3Ø or CØ to EØ, Signal Group 14 will be switched to red at the start of SG4 red.
·         If going from D1Ø or D2Ø to EØ, Signal Group 14 will be switched to yellow and red according to phase.
·         If P4 operates in CØ, SG14 will be forced to blank at the end CØ minimum green if it has not blanked earlier.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls AØ.
P1 can introduce at any time in D2Ø & at the start of AØ and can overlap from D2ØAØ.
·         P1 can introduce at any time in AØ while XSF1 is set (Masterlink only).
P1 auto introduces at the start of SG1 if XSF3 is set (all modes).
Pedestrian 2
P2 calls AØ.
P2 can introduce at any time in D3Ø & at the start of AØ and can overlap from D3ØAØ.
·         P2 can introduce at any time in AØ while XSF2 is set (Masterlink only).
P2 auto introduces at the start of SG1 if XSF4 is set (all modes).
Pedestrian 3
P3 calls CØ.
P3 can only introduce at the start of SG3 (and when Signal Group 13 is red while Timer 7 is still timing) – refer Page 4/3 in B2Ø or CØ.
P3 can overlap B2Ø→CØ.
Pedestrian 4
P4 calls CØ.
P4 can only introduce at the start of SG4 (and when Signal Group 14 is red while Timer 8 is still timing) – refer Page 4/3 in B3Ø or CØ.
P4 can overlap B3Ø→CØ.
PHASE OPERATION FOR EØ (EMERGENCY PHASE)
When the Leongatha CFA Station places a demand for left turn Emergency phase (BØ) at South Gippsland Highway near Church Street (Site 6633), it sets MSS2 flag at site 6633 (indicating an eastbound travelling CFA emergency vehicle on the Bair Street). MSS2 from site 6633 can be used to activate Emergency Phase (EØ) at this intersection to allow CFA trucks to pass through this intersection via XSF9 flag.
When MSS2 is detected at South Gippsland Highway near Church Street (6633), XSF9 is set. When XSF9 is set, it starts Delay Timer (Special Purpose Timesetting No. 16) and Timer 4. When Delay Timer expires, it places a demand for EØ and carry out the following:
The controller will clear all phase demands (i.e. clear AØ, BØ, CØ and DØ) and proceed to EØ as soon as possible but not violating the operating phase minimum green and the pedestrian walk times in the operating phase. If a pedestrian is in WALK, then select (Special Purpose Timesetting No. 13) for the pedestrian walk time.
If the controller is changing phases when EØ is demanded, then do not service pedestrians in the phase which is about to run.
MSS1 will be set when EØ is demanded and it will remain set until the start of EØ yellow. The controller is forced to ISOLATED mode of operation via the MSS1 flag using VR30. MSS1 will remain set until the start of EØ yellow.
The controller will remain in EØ once XSF9 terminates. EØ will terminate when Timer 4 (travelling time from 6633 till this intersection) expires or EØ maximum extension green has expired or until Timer 1 (Special Purpose Timesetting No.17) is expired whichever comes first.
Timer 4 is used to extend EØ when it is still timing.
The phase to operate after EØ will be AØ.
Should the controller go “Off-line”, then clear XSF9 and MSS1 flags.
DETECTOR OPERATION
Detector 7
Clear demands for CØ (SG3 & SG13) placed by detector 7 during EØ green and yellow.
Detector 8
Clear demands for BØ (SG7) placed by detector 8 during (EØ) SG7 green and yellow.
TRUCK DETECTOR LOOPS
Two sets of vehicle detectors are used to assist trucks travelling on the south approach of South Gippsland Highway (detectors 11 and 12) and on the north approach of Long Street (detectors 13 and 14) to get through above intersection during AØ. Timer 2 (Special Purpose Timesetting No. 23) will extend AØ from south approach while it is still timing after detectors 11 and 12 are activated. Timer 3 (Special Purpose Timesetting No. 24) will extend AØ from north approach while it is still timing after detectors 13 and 14 are activated.
The extension for AØ via the two approaches (i.e. AØ Approach 3 & AØ Approach 4) are carried out in the following manner:
Detector 11 & Detector 12
Start Timer 2 (Special Purpose Timesetting No. 23)  and set MSS3 if the following conditions occur:
           Detector 11 is activated prior to detector 12 and;
           Detector 11 remains on during the period between detector 11 being activated and detector 12 being activated and;
         Detector 12 is occupied for the duration specified in its presence timesetting.
         If Detectors 11 and 12 are on continuously, do not start Timer 2 (apart from when it is first activated) until they change state and do not set MSS3.
·         When Timer 2 is still timing, extend AØ via this approach (Approach 3).
·         When Timer 2 expires, stop extension of AØ via this approach (Approach 3) and clear MSS3.
Detector 13 & Detector 14
Start Timer 3 (Special Purpose Timesetting No. 24)  and set MSS4 if the following conditions occur:
           Detector 13 is activated prior to detector 14 and;
           Detector 13 remains on during the period between detector 13 being activated and detector 14 being activated and;
         Detector 14 is occupied for the duration specified in its presence timesetting.
         If Detectors 13 and 14 are on continuously, do not start Timer 3 (apart from when it is first activated) until they change state and do not set MSS4.
·         When Timer 3 is still timing, extend AØ via this approach (Approach 4).
·         When Timer 3 expires, stop extension of AØ via this approach (Approach 4) and clear MSS4.
OPERATION OF ILLUMINATED SIGNS
Wait state 8 (WS8) / Special Output 1 (SO1) LED ‘Give Way To Pedestrians’ (GWTP) Sign
·         Wait State 8 (WS8) or Special Output 1 (SO1) output drives the LED GWTP sign during P4 Walk and Clearance.
·         WS8 / SO1 activates during P4 Walk and Clearance when SG14 red has been switched Off.
Wait state 7 (WS7) / Special Output 2 (SO2) LED ‘Give Way To Pedestrians’ (GWTP) Sign
·         Wait State 7 (WS7) or Special Output 2 (SO2) output drives the LED GWTP sign during P3 Walk and Clearance.
·         WS7 / SO2 activates during P3 Walk and Clearance when SG13 red has been switched Off.