GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF7 - Selects special maximum for SG7 in Bf.
XSF8 - Selects special maximum for SG8 in Bf.
GENERAL OPERATION
1. When in Af clear demands for Ef
2. When in Cf clear demands for Bf
3. Use Bf yellow if going FCf
4. Bf ECO used to guarantee SG4 minimum green when going to Ff
SIGNAL GROUP OPERATION
Signal Group 3
1. SG3 to overlap B2Ff.
Signal Group 7
1. SG7 is controlled by Special Movement Timesetting No.1 in Bf
    Bf All Red is substituted for Special Movement No.1.
2. XSF7 is used to set the maximum extension time for SG7 in Bf
    This time is stored in Special Purpose Timesetting No.11
    SG7 is forced off after this maximum time.
3. SG7 to overlap B2Ff.
Signal Group 8
1. SG8 is controlled by Special Movement Timesetting No.2 within Bf
    Bf All Red is substituted for Special Movement No.2.
2. XSF flag is used to set the maximum extension time for SG8 in Bf
    This time is accessible in Special Purpose Timesetting No.12
    SG8 is forced off after this maximum time.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls Af
P1can introduce anytime in Ef and at the start of Af and overlap Ef®Af
Pedestrian 2
P2 calls Af
P2 can only introduce at the start of Af
Pedestrian 3
P3 calls Cf
P3 can introduce anytime in B2f and at the start of Cf and overlap BCf
Pedestrian 4
P4 calls Cf
P4 can introduce anytime in B3f and at the start of Cf and can overlap BCf
TRAM DETECTOR OPERATION
1.      Detector 13, 14, 15, 16 are used to detect the tourist tram which travels in both directions on the one track.
2.       Detector 13, 14 only place a demand for Df if detector 14 is activated prior detector 13 and remains on until detector 13 is activated.  Similarly for detectors 15 and 16, detector 16 must be activated prior to detector 15 to place a demand for Df and remain on until detector 15 is activated (this will reduce incidence of cars calling Df).
3.      Detectors 13, 15 have a presence timer which may or may not be used depending on the frequency of vehicles calling the tram phase by driving over the painted islands.
If the tram phase is called frequently by vehicles in this manner, a presence time will be set on detectors 13, 15 and tram drivers will be instructed to stop over this detector until the Df appears.  White ceramic discs would need to be placed on the roadway to assist the tram drivers in locating these detectors.
4.      When the trams pass through the intersection onto the tram detectors on the departure side the tram phase demand and extension is cancelled. Detectors 13 and 14 only clear demands and extension for Df if detector 13 is activated prior to detection 14 and detector 13 remains on until detector 14 is activated. Similarly for detectors 15 and 16, detector 15 must be activated prior to detector 16 and detector 15 remains on until detector 16 is activated.
NOTE:   Tram call placed for 2 cycles, and then automatically cleared.
OPERATION OF THE EMERGENCY PHASE
To assist CFA vehicles out of Hargraves Street Fire Station and through this intersection, a Fire Station exit phase (Ff) has been provided.  This exit from the Fire Station is controlled by 3 push buttons (being detectors 17, 18 & 19) located in the Fire Station.
CALL FUNCTION  for Left Turning Vehicles (Detector 17)
When push button 1 (Detector 17) is activated, it starts a timer (refer to Special Purpose Timesetting No.13) that when expired sets MSS1 flag, forcing the controller to isolated operation (via VR30), calls Ff and P5, clears demands for Af, Bf, Cf, Df and Ef, cancels the extension for the running phase, and terminates the running phase without violating minimum green or pedestrian times.
If the controller is changing phases (in the intergreen of a phase) when the CALL is received, then do not service the pedestrians in the phase that is about to run.  If a pedestrian movement is in walk when the CALL is received, then select Special Purpose Timesetting No.15 for the pedestrian walk time.
Ff automatically extends out to maximum unless push button 3 (Detector 19) is activated.
NOTE: Gap, headway and waste timesettings are not used in Ff.
CALL FUNCTION  for Right Turning Vehicles (Detector 18)
When Push Button 2 (Detector 18) is activated, it starts a timer (refer to Special Purpose Timesetting No.13) that when expired closes down SG9 & SG10, introduces SG11 and calls P5.
SG11 (Dummy Group) uses Ff minimum green and extension green times, and automatically extends out to maximum unless push button 3 (Detector 19) is activated. Note: gap, headway and waste are not used for SG11.
CANCEL FUNCTION (Detector 19)
Terminating call function from Det 17
When push button 3 (Detector 19) is activated, it starts a timer (Special Purpose Timesetting No.14) that when expired cancels the extension for Ff.
Ff cannot terminate until the end of Ff minimum green.
After Ff, run:
- Cf (if demanded) substituting Special Purpose Timesetting No.17 for Cf maximum extension green,
followed by
- Df (if demanded) using Df maximum extension green,
followed by
- Ef (if demanded) using Ef maximum extension green,
followed by
- Af.
The intersection will resume normal operation at the start of Af, when the MSS1 flag is cleared.
The MSS flag can be monitored by keying in A.E00DA (PSC2003) into the controller's KDU.
Terminating call function from Det 18
When push button 3 (Detector 19) is activated, it starts a timer (Special Purpose Timesetting No. 14) that when expired cancels the extension for SG11.
SG11 can not terminate until the end of SG11 minimum green.
SIGNAL GROUP 9 & SIGNALGROUP 10
SG9 & SG10 drive 2 aspect (Y/R) displays that are normally in the OFF (blank) state, in stand-by mode until activated by the CALL functions of Detectors 17 & 18.
When the delay timer for Detector 17 (Special Purpose Timesetting No. 13) has expired and Ff is demanded, SG9 & SG10 close down at the start of Af, Bf, Cf, Df or Ef yellow. SG11 introduces at the end of SG9 & SG10 all red.
At the end of Ff, SG9 & SG10 go blank at the end of SG11 all red.
When the delay timer for Detector 18 (Special Purpose Timesetting No. 13) has expired and SG11 is demanded, SG9 & SG10 close down provided their minimum blank period (Special Purpose Timesetting No. 16) has expired.
SG9 & SG10 use Cf yellow.
SG9 all red is controlled by Special Movement Timer No. 3. Ff all red timesetting is substituted for Special Movement Timer No. 3.
SG10 all red is controlled by Special Movement Timer No. 4. Ff all red timesetting is substituted for Special Movement Timer No. 4.
CALL RECORD FACILITY
The P5 demand is placed by the CALL function to enable the Ped Wait State facility in the controller to be used, to drive a display in the Fire Station. The demand for P5 is cleared at the start of SG11.
The Ped Wait State can be monitored by keying in A.E03BD (PSC2003) into the controller's KDU.
DETECTOR ALARM STATUS
Detectors 17, 18 and 19 do not alarm in the OFF state.
If Detector 17 is ON continuously, Ff will not be recalled until Detector 17 changes state from OFF to ON.
If Detector 18 is ON continuously, SG11 will not be recalled until Detector 18 changes state from OFF to ON.
If Detector 19 is ON continuously, the CANCEL function will operate NORMALLY, i.e. SG11 and/or Ff will run for their minimum green periods only.
NOTE: the failure of Detectors 17, 18 and 19 in the ON state will flag a detector alarm for monitoring purposes.