speedboard

English

Etymology

speed +‎ board

Noun

speedboard (plural speedboards)

  1. A board indicating a speed limit.
    • 1989, Wisconsin Traffic Safety Reporter:
      Speedboards would provide drivers immediate notification of their speed as they pass the device.
    • 1999, Locomotive Engineers Journal, volumes 106-108, page 4:
      Union Pacific has taken down Southern Pacific speedboards and replaced them with U.P. speedboards. U.P. speedboards for reduction of speed are posted at a measly 2,500 feet from the point of effect.
    • 2009, John Impagliazzo, Timo Järvi, Petri Paju, History of Nordic Computing 2: Second IFIP WG 9.7 Conference, page 16:
      The panel also keeps the driver informed of current speed limits and target speed limits at speedboards and signals ahead.
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