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Signal Timing Manual, The vision is for a work that covers the…

- - - - field data
- - - - dominant
      - cycle/split/offset
  - - - <= 0.5 miles ----> coordinate
      - > 0.5 miles
        need to coordinate?
        benefit or not?
        
        volumes
        
        potential for platoons
      - = 1 mile
        if the variation is minimal, the coordination is appropriate
  - - - Manually / Software
      - Master / Local Clocks ----> Set Offsets
        
        time in cycle length ---> fixed cycle
      - Bandwidth
        
        Ideal case
        
        Detector failure may limit the effect
        
        programmed stop
        
        Better bandwidth may increase the fuel consumption and delay of minor road traffic
        
        Phase sequence
        
        Leading-Lagging
      - Parameters
        
        coordinate phases
        usually minimum green
        
        guaranteed green ---> for the purpose of coordinate
        
        *(optional) actuated ---> 7.5.2
        
        Cycle Length
        
        usually has same length
        
        double length --> half of the length
        
        Splits
        
        force-off
        
        floating: give unused time to coordinate phase
        
        fixed: re-allocate depending on the requirement (detector, not only for coordinate phase)
      - Parameter Design
        
        Cycle length - Manual
        
        alternate system
        
        single: every pair has half-cycle offset
        
        double: every three has half-cycle offset
        
        triple: from middle minor road, narrow bandwidth
        
        progression speed
        
        Cycle - critical intersection
        
        Webster's method
        
        Cycle - network
        
        software
        
        toolkits
        
        Transition
        
        early back to green
- - - - Maximum Throughput
        
        Arterial:
        
        Phase sequence modification
        
        Preemption Flushing
        
        Timing plan flushing
        
        Single:
        
        Split reallocation
        
        Cycle increasing
        
        Close intersection coordination
      - Manage Queue
        
        Arterial: offsets
        
        Single:
        
        Green Extension
        
        Phase Re-servicen
        
        Phase Truncation
      - Both
        
        Adaptive Signal Control ---> for all ranges
    - - single
      - arterial
      - network