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Traffic management device and system

  • US 20050140523A1
  • Filed: 12/16/2004
  • Published: 06/30/2005
  • Est. Priority Date: 12/24/2003
  • Status: Active Grant
First Claim
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1. A traffic control device, comprising:

  • a) means to transmit the control device locations with respect to approaching vehicles, b) means to transmit the current state of the control device with respect to vehicles based on their approach direction, c) means to transmit the remaining time before changing states with respect to approaching vehicles.

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