(b) Upon a roadway designated and signposted for one-way traffic a vehicle shall be driven only in the direction designated.
(c) A vehicle passing around a rotary traffic island shall be driven only to the right of such island.
(d) Any person violating the provisions of this section is guilty of a misdemeanor and, upon conviction thereof, shall be fined not more than one hundred dollars; upon a second conviction within one year thereafter, shall be fined not more than two hundred dollars; and upon a third or subsequent conviction, shall be fined not more than five hundred dollars.