1993 Buick Roadmaster Owner's Manual - Page 160

Pavement Markings REVERSl8lE LANE ON MULTILANE ROADWAY NO PASSING ZONE I Pavement markings add to traffic signs and signals. They give information to drivers without taking attention fromthe roadway. A solid yellow lineon your side of the road or lane means "don't cross." d a n y .city roads and. expressways, and even bridges, use reversible-lane traffic control during rush hours. X A red light above aliane means no driving in that iane at that time. A green arrowmeans you may drive in that lane. Look for the signs postedto warn drivers what hours :md days these systems in effe are D -