 The Ohio Department of Transportation ( ODOT ) conducts surveys throughout its highway system to determine traffic volume . This is most commonly expressed as the average annual daily traffic ( AADT ) , or the measure of traffic volume for any average day of the year . In 2010 , ODOT determined that an average of 710 vehicles per day traveled along the length of SR 319 . This state highway is not included as a part of the National Highway System , a system of highways identified as being most important for the economy , mobility and defense of the nation . 
 The Ohio Department of Transportation ( ODOT ) <a href='uninflect' title='1'><mark>conducts</mark></a> surveys throughout its highway system to determine traffic volume . This is most commonly expressed as the average annual daily traffic ( AADT ) , or the measure of traffic volume for any average day of the year . In 2010 , ODOT determined that an average of 710 vehicles per day traveled along the length of SR 319 . This state highway is not included as <a href='None' title='2'><mark>a</mark></a><a href='negative_concord' title='3'><mark>part</mark></a> of the National Highway System , a system of highways identified as being most important for the economy , mobility and defense of the nation . 
The Ohio Department of Transportation ( ODOT ) conduct surveys throughout its highway system to determine traffic volume . dis is most commonly expressed as the average annual daily traffic ( AADT ) , or the measure of traffic volume fir any average day of the year . In 2010 , ODOT determined dat an average of 710 vehicles per day traveled along da length of SR 319 . Tdisstate highway ain't included as no part of the National Highway System , a system of highways identified as bein most important fa tdaeconomy , mobility and defense of thdaation .