 The department tracks the traffic volumes along all state highways as a part of its maintenance responsibilities using a metric called average annual daily traffic (AADT), a calculation of the traffic level along a segment of roadway for any average day of the year.In 2010, INDOT figured that lowest traffic levels were the 14,700 vehicles and 2,640 commercial vehicles used the highway daily on a section between Hartzell Road and I-469 in New Haven.The peak traffic volumes were 45,210 vehicles and 1,630 commercial vehicles AADT along the section of SR 930 between Coldwater Road and North Clinton Street in Fort Wayne.