speedboard

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.

Related terms

• speedboarder
• speedboarding