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CONTROL EQUIPMENT AND FUNCTIONS Part 1 General Concepts.

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Presentation on theme: "CONTROL EQUIPMENT AND FUNCTIONS Part 1 General Concepts."— Presentation transcript:

1 CONTROL EQUIPMENT AND FUNCTIONS Part 1 General Concepts

2 Controller Cabinet

3 CONTROLLER CABINET

4 CABINET ELEMENTS n Controller NEMA Standard

5 CABINET ELEMENTS n Controller n Detectors

6 CABINET ELEMENTS n Controller n Detectors

7

8 n Phase demand n Phase extension LOOP DETECTOR FUNCTIONS

9 LOOP DETECTOR SHAPES n Index 17781 n Bicycle problems n Large truck problems n Spillover problems

10 n Sensitivity n Hold time LOOP DETECTOR SETTINGS

11 CABINET ELEMENTS n Controller n Detectors n Conflict monitor Programmable card

12 CABINET ELEMENTS n Controller n Detectors n Conflict monitor n Load switches

13 CABINET ELEMENTS n Coordinator/supervisor

14 CABINET ELEMENTS n Coordinator/supervisor n Communications

15 CABINET ELEMENTS n Coordinator/supervisor n Communications n Power distribution

16 CABINET ELEMENTS n Coordinator/supervisor n Communications n Power distribution n Surge protection

17 CABINET ELEMENTS n Coordinator/supervisor n Communications n Power distribution n Surge protection n Police panel

18

19 CONTROLLER TYPES PRETIMED n Cycle length n Splits n Offset ACTUATED n Initial n Max Gap n Max Green n Intergreen

20 PHASING DIAGRAM

21 TRAFFIC-ACTUATED PHASES INITIAL (Typically 10 sec)

22 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION

23 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 1 SEC

24 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 2 SEC

25 TRAFFIC-ACTUATED PHASES INITIAL

26 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 1 SEC

27 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 2 SEC

28 TRAFFIC-ACTUATED PHASES INITIAL

29 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 1 SEC

30 TRAFFIC-ACTUATED PHASES INITIAL EXTENSION 2 SEC

31 TRAFFIC-ACTUATED PHASES INITIAL TERMINATION 3 SEC

32 TRAFFIC-ACTUATED PHASES INITIAL TERMINATION 3 SEC Next Phase...

33 TRAFFIC-ACTUATED PHASES INITIAL Next Phase

34 SETTINGS PER PHASE n Initial n Max gap n Max green n Yellow n All-red n Walk n FDW n Recall n Detector memory

35 NEXT... Part 2 Signal Phasing and Displays


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