By the late 1970s, the proposed extension of I-390 into downtown Rochester was scrapped. Instead, the state of New York began to look into the possibility of changing the designations that were assigned to the Outer Loop. In one proposal submitted to the American Association of State Highway and Transportation Officials in the late 1970s, I-590 would be truncated to begin at the then-proposed junction with I-390 in Brighton. The rest of the loop south of I-490, meanwhile, would become part of an extended I-390, which would continue north past I-490 to the Outer Loop's northwestern end at the Lake Ontario State Parkway. NY 47, the then-current designation for much of the Outer Loop, would be eliminated entirely.