Except as otherwise provided in this chapter, it shall be an infraction to operate a motor vehicle on the public streets and highways in excess of the following speeds:
(A) Twenty miles per hour in areas designated as business sections on the official traffic map which is on file in the City Clerk’s office.
(B) Thirty-five miles per hour in areas designated as residential sections on the official traffic map which is on file in the City Clerk’s office.
(C) Thirty-five miles per hour on all other streets and highways except as otherwise provided on the official traffic map which is on file in the City Clerk’s office.