Meaning of silent cop in English:

silent cop

noun

informal Australian
  • A traffic-control device in the form of a raised dome set into a road surface at junctions and on corners to control speed and positioning.

    • ‘they asked that the silent cop at the intersection of Hunter and Macquarie Streets be removed’
    • ‘The silent cop at the corner of the Coast Highway means it's customary to make long turns.’
    • ‘He screeched the tyres as he turned around silent cops in the early hours of the morning.’
    • ‘Highway authorities think the silent cops are having a good effect.’
    • ‘The City Council have placed ten silent cops at other intersections.’
    • ‘One-way traffic and controls on turns were also being introduced, and silent cops appeared by 1939.’