Mich. Comp. Laws § 257.641: Designating 1-way traffic; signs; driving to right of rotary traffic island; violation as civil infraction.

Sec. 641.

The state highway commissioner may designate any highway or any separate roadway under his jurisdiction for 1-way traffic and shall erect appropriate signs giving notice thereof.

Upon a roadway designated and signposted for 1-way traffic a vehicle shall be driven only in the direction designated.

A vehicle passing around a rotary traffic island shall be driven only to the right of that island.

A person who violates subsection (2) or (3) is responsible for a civil infraction.