Southfield Fwy (M39) at Melvindale Rd. (on-ramp and underpass)
Melvindale is a city around Detroit that only has 2 miles of the Southfield Fwy. However, they use this 2 miles to give tix to people coming to the Oakland County suburbs from the airport (Southfield Fwy is best way). Speed limit drops from 65mph to 55mph for Melvindale, and there is ALWAYS at least one police cruiser (Impala), many times two (especially on holiday/most travelled days). Always someone pulled over.