 Every year , <unk> conducts a series of surveys on its highways in the state to measure traffic volume . This is expressed in terms of average annual daily traffic ( AADT ) , a measure of traffic volume for any average day of the year . In 2012 , <unk> calculated that as few as 735 vehicles used the highway on an average day at its western terminus in Cornish , and as many as 2 @,@ 180 vehicles used the highway at its junction with SR @-@ 200 . Thirty @-@ five percent of this was truck traffic . 
