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Traffic Signals 101. Topic 8 Head/Loop Placement. Signal Heads and Indications. Pedestrian Signal Head WALKING PERSON (symbolizing WALK ) UPRAISED HAND (symbolizing DONT WALK) Countdown numbers Comprised of two components; Pedestrian signal housing Pedestrian signal indication.

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traffic signals 101

Traffic Signals 101

Topic 8

Head/Loop Placement

signal heads and indications
Signal Heads and Indications
  • Pedestrian Signal Head
    • WALKING PERSON (symbolizing WALK)
    • UPRAISED HAND (symbolizing DONT WALK)
    • Countdown numbers
    • Comprised of two components;
      • Pedestrian signal housing
      • Pedestrian signal indication
signal heads and indications1
Signal Heads and Indications
  • Pedestrian Signal Housing
    • Protects the light source and other components
    • Indication mounting door and sun visor
  • Pedestrian Signal Indication
    • LED hand and man countdown indication module that is installed within the pedestrian signal housing
signal heads and indications2
Signal Heads and Indications
  • Vehicle Signal Head
    • Is an assembly of one or more signal sections that is provided for controlling vehicle traffic movements on one or more approaches
    • This assembly of signal sections also includes a background shield
signal heads and indications3
Signal Heads and Indications
  • Signal Section
    • Assembly of a signal housing, signal lens, if any, and light source with necessary components to be used for displaying one signal indication
    • Section is comprised of two components
      • Signal housing
      • Signal indication
signal heads and indications4
Signal Heads and Indications
  • Signal Housing
    • Protects the light source and other required components
    • Includes a hinged opening (with visor) in which the signal indication is mounted
  • Signal Indication
    • Is the illumination of a signal lens or equivalent device
    • Light Emitting Diode (LED) indication module
    • Installed within the signal housing
  • Housing and indication make up the section
head placement
Head Placement
  • Traffic Signal Head Placement
head placement1
Head Placement
  • Traffic Signal Layout
loop placement
Loop Placement
  • Loop Detector Placement Design
    • Guaranteed Green
    • Safety
    • Failsafe
    • Maintenance
    • Operation