 These volumes are expressed using a metric called annual average daily traffic, which is a statistical calculation of the average daily number of vehicles on a segment of roadway.MDOT's surveys in 2010 showed that, on average, 3,615 vehicles between the M-35 and M-94 junctions, and 10,021 vehicles north of Division Street, used the highway daily.No section of M-553 is listed on the National Highway System, a network of roads important to the country's economy, defense, and mobility.