| GENERAL NOTES | |||||||||||||||||||||||||
| SUMMARY OF XSF FLAGS | |||||||||||||||||||||||||
| XSF5 - Inhibits Clearance Zone detectors from extending the walk. | |||||||||||||||||||||||||
| XSF6 - Inhibits Clearance Zone detectors from extending the clearance. | |||||||||||||||||||||||||
| XSF9 - For queuing feature use (Refer to Page 6). | |||||||||||||||||||||||||
| XSF10 - | For queuing feature use (Refer to Page 6). | ||||||||||||||||||||||||
| SUMMARY OF MSS FLAGS | |||||||||||||||||||||||||
| MSS11 - Set for the duration of P1 demand. | |||||||||||||||||||||||||
| GENERAL OPERATION | |||||||||||||||||||||||||
| 1. Expire AØ ECO if going AØ®BØ, AØ®DØ and AØ®EØ. | |||||||||||||||||||||||||
| 2. Expire DØ ECO if going DØ®EØ. | |||||||||||||||||||||||||
| SIGNAL GROUP OPERATION | |||||||||||||||||||||||||
| SIGNAL GROUP 1 & SIGNAL GROUP 2 | |||||||||||||||||||||||||
| VA Mode | |||||||||||||||||||||||||
| 1. SG1 and SG2 close down at the start of AØ yellow. | |||||||||||||||||||||||||
| Masterlink and Flexilink | |||||||||||||||||||||||||
| 1. If going AØ®CØ or AØ®FØ with a demand for P1, SG1 and SG2 close down at the start of AØ | |||||||||||||||||||||||||
| yellow. | |||||||||||||||||||||||||
| 2. If SG1 and SG2 gap, waste or go to maximum in BØ with a demand for P1, start Timer 1 (Refer to | |||||||||||||||||||||||||
| AØ ECO) when Timer 1 expires, SG1 and SG2 close down. Timer 1 reset at the start of SG1 green. | |||||||||||||||||||||||||
| 3. If going DØ®FØ with a demand for P1, SG1 and SG2 close down at the start of DØ yellow. | |||||||||||||||||||||||||
| 4. If SG1 and SG2 gap, waste or go to maximum in EØ with a demand for P1, start Timer 1 (Refer to | |||||||||||||||||||||||||
| AØ 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 | |||||||||||||||||||||||||
| 1. Relay Output 1 controls the operation of a flashing alternating “PREPARE TO STOP”/BLANK sign. | |||||||||||||||||||||||||
| (Note: BLANK refers to sign showing no display) | |||||||||||||||||||||||||
| 2. Relay Output 1 is activated by P4 Wait State (ATSC4/PSC2000/QTC) or by Special Output 1 | |||||||||||||||||||||||||
| (Eclipse). | |||||||||||||||||||||||||
| 3. Both P4 Wait State (P4WS) and Special Output 1 (SO1) are set in the controller personality. | |||||||||||||||||||||||||
| 4. P4WS can be monitored by keying in A.E03BD (PSC2000) or 7 (Diag) > 1 (Mem) > 3BD (Alpha 16/ | |||||||||||||||||||||||||
| ATSC4/ QTC) into the controller, or in SCATS Access, Show > Controller > Memory - Page 3, Offset | |||||||||||||||||||||||||
| BD (Hex). | |||||||||||||||||||||||||
| 5. SO1 can be monitored by keying in 7 (Diag) > 1 (Mem) > 37A (Eclipse) into the controller, or in | |||||||||||||||||||||||||
| SCATS Access, Show > Controller > Memory - Page 3, Offset 7A (Hex). | |||||||||||||||||||||||||
| VA Mode: | |||||||||||||||||||||||||
| Relay Output 1 is switched on at the start of AØ ECO and remains on until one of the following conditions is first met: | |||||||||||||||||||||||||
| 1. Timer 2 (refer Special Purpose Timesetting No. 9) 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). | |||||||||||||||||||||||||
| 2. Detectors 1 and 2 become unoccupied for a period specified in Special Purpose Timesetting No. 20 (gap time) during the east approach green period. | |||||||||||||||||||||||||
| Masterlink and Flexilink: | |||||||||||||||||||||||||
| If going AØ®CØ or AØ®FØ with a demand for P1, Relay Output 1 is switched on at the start of AØ ECO. If going DØ®FØ with a demand for P1, Relay Output 1 is switched on at the start of DØ ECO. | |||||||||||||||||||||||||
| If going BØ®CØ or BØ®FØ or EØ®FØ with a demand for P1, Relay Output 1 is switched on when SG1 & SG2 gap, waste or go to maximum. | |||||||||||||||||||||||||
| Relay Output 1 remains on until one of the followings conditions is first met. | |||||||||||||||||||||||||
| 1. Timer 2 (refer Special Purpose Timesetting No. 9) 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). | |||||||||||||||||||||||||
| 2. Detectors 1 and 2 become unoccupied for a period specified in Special Purpose Timesetting No. 20 (gap time) during the east approach green period. | |||||||||||||||||||||||||
| Calculation of ECO | |||||||||||||||||||||||||
| ECO = Time to travel from the sign to the stopline (147/16.67 m/s = 8.8) – time to travel from the nominal stopping distance to the stopline (phase yellow = 4.0) + reaction time, including time to travel the viewing distance (1.5s) | |||||||||||||||||||||||||
| = 8.8 – 4 + 1.5 | |||||||||||||||||||||||||
| = 6.3 (6.0s) | |||||||||||||||||||||||||