 The property rights' holders refused to give up, and negotiated with the Hanshin Expressway corporation for approximately five years to reach the current solution.Although normally highway corporations purchase the land they build a highway on or over, it is not guaranteed to succeed and therefore issues like this can arise.For that reason, the highway laws, city planning laws, city redevelopment laws and building codes were partly revised in 1989 to allow the unified development of highways and buildings in the same space.