Specific speed limited areas can be missed by drivers because of fussy signage. The duosign® is a very effectiv solution to materialize those sensible areas. Creating clear points of entry and end, repeating the information in between, it sends a clear and unmistakable information to the driver and increases his awareness. The standard speed limit duosign® range covers speeds from 10 to 30 kilometers or miles. They can be combined with all other signs, especially school signs.