where it meets BUS US 223/M-52. M-34 is maintained by the Michigan Department of Transportation (MDOT) like other state highways in Michigan. As a part of these maintenance responsibilities, the department tracks the volume of traffic that uses the roadways under its jurisdiction. 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 the highest traffic levels along M-34 were the 11,302 vehicles daily immediately east of the BUS US 223/M-52 junction in Adrian; the lowest counts were the 4,166 vehicles per day between Hudson and the M-156 junction. No section of M-34 has been listed on the National Highway System, a network of roads important to the country's economy, defense, and mobility. History When the state highway system was signed around July 1, 1919, M-34 started in Jonesville at an intersection with M-23 along the present-day alignment of M-99. The highway ran to Adrian along its present route and continued southeasterly along present-day US 223 through Blissfield, where it terminated at the Ohio state line near Sylvania, Ohio. In 1924, the western terminus of the highway was extended to Homer where it terminated at M-60. Just a few years later, in 1926, the western terminus was truncated, to end at Hillsdale, with the remainder to Jonesville becoming an extension of the M-64 of the day. At the same time, the eastern segment of M-34 from Adrian to the border was assumed into the US 127 corridor, therefore, scaling the terminus back to US 127 (now US 223). In 1954, a new US 223 bypass was built around Adrian, resulting in the relocation of M-34 to end at BUS US 223/M-52. Finally, in 1966, when a new alignment of M-99 highway was opened, the western terminus of M-34 was scaled back to end at the new highway near Osseo. In 2003, the short connector between M-34 and US 223 was abandoned and obliterated. Industrial Drive, which is known internally at MDOT as Connector 34, is a new connector between the two highways that was assumed into the state trunkline system at the same time. Major intersections See also References External links M-34 at Michigan Highways 034 Transportation in Hillsdale County, Michigan Transportation in Lenawee County, Michigan