carry one-way traffic and bear the Southfield Road name on either side. M-39 meets Outer Drive next to the Fairlane Green power center. The adjoining properties are residential to the west and commercial to the east. Near Greenfield Village, the freeway curves to the northwest around the Ford Proving Grounds before turning to the north, a direction it will maintain until the end of its run. The freeway crosses the River Rouge, passes under the line used by the Amtrak Wolverine, and meets US Highway 12 (US 12, Michigan Avenue) next to the Fairlane Town Center and Ford Motor Company's world headquarters in Dearborn near the campus of the University of Michigan–Dearborn. North of the interchange for M-153, (Ford Road), M-39 crosses into Detroit. From there the road continues through the densely populated areas of the west side of the city. Next to the Chicago Road overpass, the freeway runs under a CSX Transportation rail line. The trunkline continues traveling to the north through a series of interchanges. The first is a partial interchange for Plymouth Road; northbound traffic exiting here is directed to use the service drive northbound to access Schoolcraft Road, and traffic can enter M-39 southbound. Next is the stack interchange with I-96 (Jeffries Freeway) with access to both the local and express lanes of that freeway. The last of the series is another partial interchange with Schoolcraft Road. As a counterpart to the Plymouth Road interchange, this one provides access from southbound M-39 to the cross street with a signed connection along the southbound service drive to Plymouth Road and an entry point for northbound traffic. Continuing north, M-39 comes to an interchange with M-5 (Grand River Avenue) which also connects to Fenkell Avenue, the 5 Mile Road equivalent on Detroit's mile road system. There are three more interchanges along M-39 in Detroit as the freeway continues through the residential upper west side. Near the Wayne Community College District, the freeway meets McNichols Road (6 Mile). There is another interchange approximately north at 7 Mile Road as well. The road then crosses the border between Wayne and Oakland counties to enter Southfield at the interchange with M-102 (8 Mile Road). The Southfield Freeway, and M-39, terminates at an interchange with M-10 (John C. Lodge Freeway) near 9 Mile Road. Southfield Road continues northward from the end of the freeway under local maintenance. M-39 is maintained by