GENERAL NOTES
GENERAL OPERATION
1.      Expire Aj ECO if going ABj, ADj and AEj.
2.      Expire Dj ECO if going DEj.
SIGNAL GROUP OPERATION
SIGNAL GROUP 1 & SIGNAL GROUP 2
VA Mode
1 SG1 and SG2 close down at the start of Aj yellow.
Masterlink and Flexilink
1.      If going ACj or AFj with a demand for P1, SG1 and SG2 close down at the start of Aj yellow.
2.      If SG1 and SG2 run to the end of minimum green (refer to Special Purpose Timesetting No. 11) in Bj with a demand for P1, start Timer 1 (Refer to Bj ECO).  When Timer 1 expires, SG1 and SG2 close down. Timer 1 is reset at the start of SG1 green.
3.      If going DFj with a demand for P1, SG1 and SG2 close down at the start of Dj yellow.
4.      If SG1 and SG2 run to the end of minimum green (refer to Special Purpose Timesetting No. 11) in Ej with a demand for P1, start Timer 1 (Refer to Ej ECO). When Timer 1 expires, SG1 and SG2 close down. Timer 1 is reset at the start of SG1 green.
OPERATION OF “PREPARE TO STOP” SIGN
P4 Wait State output drives the “PREPARE TO STOP” sign located about 220m north of the southbound stop line of the POS.
VA Mode:
P4 Wait State is switched on at the start of Aj ECO and remains on until Timer 2 (refer to Special Purpose Timesetting No. 12) expires. Timer 2 starts timing at the start of SG1 green. Timer 2 is reset at the start of SG1 green (Note: Timer 2 should be equal to or less than SG1 minimum green).
Masterlink and Flexilink:
If going ACj or AFj with a demand for P1, P4 Wait State is switched on at the start of Aj ECO. If going DFj with a demand for P1, P4 Wait State is switched on at the start of Dj ECO. 
If going BCj or BFj or EFj with a demand for P1, P4 Wait State is switched on when SG1 & SG2 run to the end of minimum green (refer to Special Purpose Timesetting No. 11).
P4 Wait State remains on until Timer 2 (refer Special Purpose Timesetting No. 12) expires. Timer 2 starts timing at the start of SG1 green. Timer 2 is reset at the start of SG1 green (Note Timer 2 should be equal to or less than SG1 minimum green).
Calculation of ECO
ECO = Time to travel from the sign to the stopline (200/19.45 m/s = 10) – time to travel from the      
             nominal stopping distance to the stopline (phase yellow = 4.5) + reaction time, including time to           
             travel the viewing distance (1.5s) 
         = 10 – 4.5 + 1.5
         = 7