| 摘要 |
A method and system in automobile traffic control for warning drivers that they are exceeding the speed limit using an alpha-numeric variable message sign (50) proximate the roadway. The sign displays the license plate number, owner's name and the vehicle's speed. The system includes an opto-electric license plate reader (10) and a computer system (31) having a database of license numbers and associated information, including owner's names and make and model of licensed vehicles.
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