Gov. Scott Walker is following through with his promise not to raise gas taxes or vehicle registration fees to pay for roads, while abandoning Milwaukee's Interstate 94 east-west expansion project. But he's keeping other ongoing highway projects on track that were scheduled by the Department of Transportation to be delayed. Those are expanding and reconstructing the Highway 151/Verona Road interchange in southwest Madison and reconstructing 11 miles of Highway 15 near New London in Outagamie County. All other projects could face delays. Walker's roads budget would rely on borrowing half a billion dollars. Assembly Republicans have said they don't want to borrow that much and instead want Walker to consider raising transportation-related revenue while cutting unspecified other taxes by an equal amount.