Pierce Butler, New Orleans Public Service v. City of New Orleans…
“ The value of the viaduct to be removed, the large expenditure involved for construction of the crossings in its place, and the dangers incident to their use constitute the sole basis of fact on which the ordinance, is assailed. It is elementary that enforcement of uncompensated obedience to a regulation passed in the legitimate exertion of the police power is not a taking of property without due process of law. Chicago, Burlington & Q. Railroad Co. ”
