The western terminus of M-14 is west of Ann Arbor, at exit 171 on I-94. This is a
partial interchange; only traffic from eastbound I-94 can access eastbound M-14, and traffic from westbound M-14 must follow westbound I-94. From this junction, M-14 runs northeasterly through suburban
Scio Township. The freeway is bordered by residential subdivisions to the southeast and woodlands to the northwest. M-14 curves around to the east through an interchange that has ramps that connect Miller and Maple roads; the ramps connect to Maple Road through a pair of
roundabouts. As it approaches the
Huron River, the freeway has an interchange with
Business US 23 (Bus. US 23); the two highways merge and run concurrently to the north over the river. Bus. US 23/M-14 then has an unusual
right-in/right-out interchange that uses short connector roads to provide access to Barton Drive on the north side of the river. The freeway then continues north to an interchange with US 23. The business loop ends there, and M-14 turns eastward to follow the US 23 freeway around the north side of Ann Arbor. East of that complex, M-14 runs through woodlands and fields north of the community of
Dixboro. The freeway turns northeasterly after the interchange with
M-153. At the Napier Road underpass, M-14 crosses into Wayne County. and passes the
Ford Motor Company's Sheldon Road Plant near the Sheldon Road interchange. There is a crossing for another CSX rail line near the bridges over the
River Rouge by the St. Johns Golf Course. The freeway through this area curves around a bit north of its previous course. As M-14 nears the
Livonia city line, it meets an interchange with I-96 and I-275 that marks the eastern terminus of M-14 in
Plymouth Township. M-14 is maintained by 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-14 were the 86,500 vehicles daily east of the Sheldon Road interchange in Plymouth Township; the lowest counts were the 26,641 vehicles per day west of the Miller Road interchange. All of M-14 has been listed on the
National Highway System, a network of roads important to the country's economy, defense, and mobility. ==History==