The national highway serves as a street level access road for the expressway, with every entrance and exit on the expressway beyond Minami Hiraki Junction linking directly to it.

[2] A "mini" parking area with toilets and vending machines is placed on the eastbound side of the expressway adjacent to Bentenchō Station.

[3] The expressway terminates after it merges into National Route 43 at the Ajigawa entrance and exit ramps, just short of the southern bank of the Aji River.

An exception to this rate applies between 10:00 pm and 6:00 am if users have vehicles equipped with ETC transponders.

[4] Construction of the Nishi-Osaka Route began in 1967 in preparation for the Expo '70 held in the nearby city of Suita.