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Roadway alarm system

  • US 5,039,979 A
  • Filed: 04/11/1990
  • Issued: 08/13/1991
  • Est. Priority Date: 04/11/1990
  • Status: Expired due to Fees
First Claim
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1. A roadway alarm system that alerts vehicle occupants of a lane change, comprising a metallized impregnated painted or plastic strip marked on a highway to distinguish lanes;

  • sensor means mounted on a vehicle for detecting metal impregnated into the paint when said sensor means come into proximity with said metallized impregnated painted or plastic strip;

    alarm means connected to said sensor means and activated when said sensor means comes into proximity with said metallized impregnated painted or plastic strip, thereby providing a warning to the vehicles occupants that a change in lanes is eminent.

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