The state-of-the-art variable message sign (VMS) systems have been widely used as a crucial means in the daily traffic environment to promote safe and efficient driving on highways. In addition, these overhead mounted VMSs play an important role in the Intelligent Transportation System (ITS) by displaying real-time information and advice about roadway and traffic conditions.
Thus, a properly designed and displayed message on VMS is especially important to a motorist who has to detect, comprehend, and act on signage information while being occupied with the driving task.
To this end, this...