1 In 4-phase operation: ▪ Must call phase 6 if Overlap A is not green and phase 7 is not called. ▪ Must call phase 6 if Overlap A is not green and phase 8 is not called. ▪ Extend intervals 2516B, 2517B, 2518B, 4517B, 4518B, 3517B, and 3518B. In 3-phase operation: ▪ Must call and extend phase 1 (left turn). 5 In 4-phase operation: ▪ Must call phase 2 if Overlap B is not green and phase 3 is not called. ▪ Must call phase 2 if Overlap B is not green and phase 4 is not called. ▪ Extend Intervals 1625B, 1635B, 1645B, 1735B, 1745B, 1835B, and 1845B. In 3-phase operation: ▪ Must call and extend phase 5 (left turn). 2, 3, 4, 6, 7, and 8 These setback detectors (or detector sets) belong to the parent phases with the same number (e.g., detector 2 belongs to phase 2) as shown in Figure 9. These detectors must have a 2-sec. delay set during red conditions of their parent phase. The detectors are used to extend the parent phase during green. 11, 12, 15, 16, 17, and 18 These detectors are stop bar detectors and are used to call the associated parent phases shown in Figure 9. The parent phase green plus a call for that phase plus a 0.2-sec. gap on the detector must disable the detector until the end of green. 9 and 10 In 4-phase operation: ▪ Must extend phase 2 if phase 3 is called ▪ Must extend phase 2 if phase 4 is called ▪ Must call phase 6 if Overlap A is not green and phase 7 is not called ▪ Must call phase 6 if Overlap A is not green and phase 8 is not called ▪ Extend intervals 2516B, 2517B, 2518B, 4517B, 4518B, 3517B, and 3518B In 3 phase operation: ▪ Must function as a phase-1 calling detector during phase 3 or 4 and as a phase-1 extending detector when a phase 3 or 4 call exists 13 and 14 In 4 phase operation: ▪ Must extend phase 6 if phase 7 is called ▪ Must extend phase 6 if phase 8 is called ▪ Must call phase 2 if Overlap B is not green and phase 3 is not called ▪ Must call phase 2 if Overlap B is not green and phase 4 is not called ▪ Extend Intervals 1625B, 1635B, 1645B, 1735B, 1745B, 1835B, and 1845B
